Organic electroluminescence element and electronic device

Abstract

An organic electroluminescent element 1 which comprises a first light emitting layer 51 that contains a first host material, a first organic material and a first dopant material, and a second light emitting layer 52 that contains a second host material and a second dopant material, wherein the first host material, the first organic material and the second host material are compounds that have structures different from each other, while satisfying mathematical formulae (1) and (2).　(1): T1(H1) > T1(H3) (2): T1(H2) > T1(H3) (In mathematical formulae (1) and (2), T1(H1), T1(H2) and T1(H3) respectively represent the triplet energies of the first host material, the first organic material and the second host material.)

Description

[Technical field]

[0001] The present invention relates to an organic electroluminescence element and an electronic device. [Background technology]

[0002] Organic electroluminescence elements (hereinafter sometimes referred to as "organic EL elements") are applied to full-color displays such as mobile phones and televisions. When a voltage is applied to an organic EL element, holes are injected from the anode into the light-emitting layer, and electrons are injected from the cathode into the light-emitting layer. Then, in the light-emitting layer, the injected holes and electrons recombine to form excitons. At this time, according to the statistical laws of electron spin, singlet excitons are generated at a rate of 25% and triplet excitons are generated at a rate of 75%. In order to improve the performance of organic EL elements, various studies have been made on compounds used in organic EL elements, for example in Patent Documents 1 to 5. Furthermore, Patent Document 6 describes a phenomenon in which a singlet exciton is generated by the collision fusion of two triplet excitons (hereinafter, sometimes referred to as the Triplet-Triplet Fusion (TTF) phenomenon) in order to improve the performance of organic EL elements. The performance of an organic EL element includes, for example, luminance, emission wavelength, chromaticity, luminous efficiency, driving voltage, and life span. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-157552 A [Patent Document 2] JP 2009-016478 A [Patent Document 3] International Publication No. 2007 / 138906 [Patent Document 4] US Patent Application Publication No. 2019 / 280209 [Patent Document 5] JP 2007-294261 A [Patent Document 6] International Publication No. 2010 / 134350 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide an organic electroluminescence element in which the decrease in chromaticity is suppressed and the luminous efficiency is improved, and to provide an electronic device incorporating the organic electroluminescence element. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided an organic electroluminescence device comprising an anode, a cathode, a first light-emitting layer, and a second light-emitting layer, the first light-emitting layer and the second light-emitting layer being disposed between the anode and the cathode, the first light-emitting layer including a first host material, a first organic material, and a first dopant material, the second light-emitting layer including a second host material and a second dopant material, the first host material, the first organic material, and the second host material being compounds having different structures, the first dopant material and the second dopant material being compounds having the same structure or compounds having different structures, and the first host material, the first organic material, the second host material, the first dopant material, and the second dopant material satisfy the relationships of the following mathematical formulas (Mathematical Formula 1), (Mathematical Formula 2), (Mathematical Formula 3), (Mathematical Formula 5), ​​and (Mathematical Formula 6). T1(H1)>T1(H3) ... (Number 1) T1(H2)>T1(H3) ...(Number 2) T1(D1)>T1(H1) ... (Number 3) S1(H1)>S1(D1) ... (Number 5) S1(H2)>S1(D1) ... (Number 6) (In the above formulas (1), (2), (3), (5) and (6), T1(H1) is the triplet energy (unit: eV) of the first host material; T1(H2) is the triplet energy (unit: eV) of the first organic material; T1(H3) is the triplet energy (unit: eV) of the second host material; T1(D1) is the triplet energy of the first dopant material (unit: eV); S1(H1) is the singlet energy (unit: eV) of the first host material, S1(H2) is the singlet energy (unit: eV) of the first organic material; S1(D1) is the singlet energy of the first dopant material (unit: eV).

[0006] According to one aspect of the present invention, there is provided an electronic device equipped with the organic electroluminescence element according to the above-described aspect of the present invention.

[0007] According to one aspect of the present invention, it is possible to provide an organic electroluminescence element in which a decrease in chromaticity is suppressed and luminous efficiency is improved. Also, according to one aspect of the present invention, it is possible to provide an electronic device equipped with the organic electroluminescence element. [Brief description of the drawings]

[0008] [Figure 1] 1 is a diagram showing a schematic configuration of an example of an organic electroluminescence element according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Definition] In this specification, hydrogen atoms include isotopes having different numbers of neutrons, namely protium, deuterium, and tritium.

[0010] In the present specification, in a chemical structural formula, a hydrogen atom, i.e., a protium atom, a deuterium atom, or a tritium atom is assumed to be bonded to a possible bonding position that is not explicitly indicated with a symbol such as "R" or "D" representing a deuterium atom.

[0011] In this specification, the number of ring carbon atoms represents the number of carbon atoms among the atoms constituting the ring itself of a compound having a structure in which atoms are bonded in a ring (for example, a monocyclic compound, a condensed ring compound, a bridged compound, a carbocyclic compound, and a heterocyclic compound). When the ring is substituted with a substituent, the carbon contained in the substituent is not included in the number of ring carbon atoms. The "number of ring carbon atoms" described below is the same unless otherwise specified. For example, a benzene ring has 6 ring carbon atoms, a naphthalene ring has 10 ring carbon atoms, a pyridine ring has 5 ring carbon atoms, and a furan ring has 4 ring carbon atoms. For example, the number of ring carbon atoms of a 9,9-diphenylfluorenyl group is 13, and the number of ring carbon atoms of a 9,9'-spirobifluorenyl group is 25. In addition, when a benzene ring is substituted with, for example, an alkyl group as a substituent, the carbon number of the alkyl group is not included in the number of ring carbon atoms of the benzene ring. Therefore, the number of ring carbon atoms of the benzene ring substituted with an alkyl group is 6. In addition, when a naphthalene ring is substituted with, for example, an alkyl group as a substituent, the carbon number of the alkyl group is not included in the number of ring carbon atoms of the naphthalene ring. Therefore, the number of ring carbon atoms of the naphthalene ring substituted with an alkyl group is 10.

[0012] In this specification, the number of ring atoms refers to the number of atoms constituting the ring itself of a compound (e.g., a monocyclic compound, a fused ring compound, a bridged compound, a carbocyclic compound, and a heterocyclic compound) having a structure in which atoms are bonded in a ring (e.g., a monocyclic compound, a fused ring compound, and a ring assembly). The number of ring atoms does not include atoms that do not constitute a ring (e.g., a hydrogen atom that terminates the bond of an atom constituting a ring) or atoms contained in a substituent when the ring is substituted with a substituent. The "number of ring atoms" described below is the same unless otherwise specified. For example, the number of ring atoms of a pyridine ring is 6, the number of ring atoms of a quinazoline ring is 10, and the number of ring atoms of a furan ring is 5. For example, the number of hydrogen atoms or atoms constituting a substituent bonded to a pyridine ring is not included in the number of pyridine ring atoms. Therefore, the number of ring atoms of a pyridine ring to which a hydrogen atom or a substituent is bonded is 6. For example, hydrogen atoms bonded to carbon atoms of a quinazoline ring or atoms constituting a substituent are not included in the number of ring atoms of the quinazoline ring. Therefore, the number of ring atoms of a quinazoline ring to which a hydrogen atom or a substituent is bonded is 10.

[0013] In the present specification, the "number of carbon atoms XX to YY" in the expression "a substituted or unsubstituted ZZ group having carbon atoms XX to YY" represents the number of carbon atoms when the ZZ group is unsubstituted, and does not include the number of carbon atoms of the substituent when the ZZ group is substituted. Here, "YY" is larger than "XX", "XX" means an integer of 1 or more, and "YY" means an integer of 2 or more.

[0014] In the present specification, the "number of atoms XX to YY" in the expression "a substituted or unsubstituted ZZ group having the number of atoms XX to YY" represents the number of atoms when the ZZ group is unsubstituted, and does not include the number of atoms of the substituent when the ZZ group is substituted. Here, "YY" is larger than "XX", "XX" means an integer of 1 or more, and "YY" means an integer of 2 or more.

[0015] In this specification, the term "unsubstituted ZZ group" refers to the case where a "substituted or unsubstituted ZZ group" is an "unsubstituted ZZ group", and the term "substituted ZZ group" refers to the case where a "substituted or unsubstituted ZZ group" is a "substituted ZZ group". In the present specification, "unsubstituted" in the case of "a substituted or unsubstituted ZZ group" means that a hydrogen atom in the ZZ group is not replaced with a substituent. The hydrogen atom in the "unsubstituted ZZ group" is a protium atom, a deuterium atom, or a tritium atom. In the present specification, "substituted" in the case of "a substituted or unsubstituted ZZ group" means that one or more hydrogen atoms in the ZZ group are replaced with a substituent. Similarly, "substituted" in the case of "a BB group substituted with an AA group" means that one or more hydrogen atoms in the BB group are replaced with an AA group.

[0016] "Substituents Described Herein" The substituents described in this specification will be described below.

[0017] The "unsubstituted aryl group" described in this specification has 6 to 50 ring carbon atoms, preferably 6 to 30, and more preferably 6 to 18 ring carbon atoms, unless otherwise specified in this specification. The "unsubstituted heterocyclic group" described in this specification has 5 to 50 ring atoms, preferably 5 to 30, and more preferably 5 to 18 ring atoms, unless otherwise specified in this specification. The "unsubstituted alkyl group" described in this specification has 1 to 50 carbon atoms, preferably 1 to 20 carbon atoms, and more preferably 1 to 6 carbon atoms, unless otherwise specified in this specification. The "unsubstituted alkenyl group" described in this specification has 2 to 50 carbon atoms, preferably 2 to 20 carbon atoms, and more preferably 2 to 6 carbon atoms, unless otherwise specified in this specification. The "unsubstituted alkynyl group" described in this specification has 2 to 50 carbon atoms, preferably 2 to 20 carbon atoms, and more preferably 2 to 6 carbon atoms, unless otherwise specified in this specification. The "unsubstituted cycloalkyl group" described in this specification has 3 to 50 ring carbon atoms, preferably 3 to 20, and more preferably 3 to 6 ring carbon atoms, unless otherwise specified in this specification. The "unsubstituted arylene group" described in this specification has 6 to 50 ring carbon atoms, preferably 6 to 30, and more preferably 6 to 18 ring carbon atoms, unless otherwise specified in this specification. The "unsubstituted divalent heterocyclic group" described in this specification has 5 to 50 ring atoms, preferably 5 to 30, and more preferably 5 to 18 ring atoms, unless otherwise specified in this specification. The "unsubstituted alkylene group" described in this specification has 1 to 50 carbon atoms, preferably 1 to 20 carbon atoms, and more preferably 1 to 6 carbon atoms, unless otherwise specified in this specification.

[0018] "Substituted or unsubstituted aryl groups" Specific examples (specific example group G1) of the "substituted or unsubstituted aryl group" described in this specification include the following unsubstituted aryl group (specific example group G1A) and substituted aryl group (specific example group G1B). (Here, the unsubstituted aryl group refers to the case where the "substituted or unsubstituted aryl group" is an "unsubstituted aryl group", and the substituted aryl group refers to the case where the "substituted or unsubstituted aryl group" is a "substituted aryl group".) In this specification, when the term "aryl group" is simply used, it includes both an "unsubstituted aryl group" and a "substituted aryl group". The term "substituted aryl group" refers to a group in which one or more hydrogen atoms of an "unsubstituted aryl group" are replaced with a substituent. Examples of the "substituted aryl group" include the "unsubstituted aryl group" in the specific example group G1A below in which one or more hydrogen atoms are replaced with a substituent, and the substituted aryl group in the specific example group G1B below. The examples of the "unsubstituted aryl group" and the examples of the "substituted aryl group" listed here are merely examples, and the "substituted aryl group" described in this specification also includes the "substituted aryl group" in the specific example group G1B below in which a hydrogen atom bonded to a carbon atom of the aryl group itself is further replaced with a substituent, and the "substituted aryl group" in the specific example group G1B below in which a hydrogen atom of a substituent is further replaced with a substituent.

[0019] Unsubstituted aryl groups (specific example group G1A): Phenyl group, p-biphenyl group, m-biphenyl group, o-biphenyl group, p-terphenyl-4-yl group, p-terphenyl-3-yl group, p-terphenyl-2-yl group, m-terphenyl-4-yl group, m-terphenyl-3-yl group, m-terphenyl-2-yl group, o-terphenyl-4-yl group, o-terphenyl-3-yl group, o-terphenyl-2-yl group, 1-naphthyl group, 2-naphthyl group, anthryl group, Benzanthryl group, A phenanthryl group, Benzophenanthryl group, A phenalenyl group, Pyrenyl group, Chrysenyl group, benzochrysenyl group, A triphenylenyl group, Benzotriphenylenyl group, tetracenyl group, Pentacenyl group, fluorenyl group, 9,9'-spirobifluorenyl group, Benzofluorenyl group, Dibenzofluorenyl group, fluoranthenyl group, Benzofluoranthenyl group, Perylenyl groups, and A monovalent aryl group derived by removing one hydrogen atom from a ring structure represented by the following general formulas (TEMP-1) to (TEMP-15).

[0020] [ka]

[0021] [ka]

[0022] Substituted aryl groups (specific example group G1B): o-tolyl group, m-tolyl group, p-tolyl group, para-xylyl group, meta-xylyl group, ortho-xylyl group, para-isopropylphenyl group, meta-isopropylphenyl group, ortho-isopropylphenyl group, para-t-butylphenyl group, meta-t-butylphenyl group, ortho-t-butylphenyl group, 3,4,5-trimethylphenyl group, 9,9-dimethylfluorenyl group, 9,9-diphenylfluorenyl group, 9,9-bis(4-methylphenyl)fluorenyl group, 9,9-bis(4-isopropylphenyl)fluorenyl group, 9,9-bis(4-t-butylphenyl)fluorenyl group, Cyanophenyl group, triphenylsilylphenyl group, trimethylsilylphenyl group, phenylnaphthyl group, naphthylphenyl group, and A group in which one or more hydrogen atoms of a monovalent group derived from a ring structure represented by any one of the general formulae (TEMP-1) to (TEMP-15) are replaced with a substituent.

[0023] "Substituted or unsubstituted heterocyclic groups" The "heterocyclic group" described herein is a cyclic group containing at least one heteroatom as a ring-forming atom. Specific examples of the heteroatom include a nitrogen atom, an oxygen atom, a sulfur atom, a silicon atom, a phosphorus atom, and a boron atom. The "heterocyclic groups" described herein are either monocyclic or fused ring groups. The "heterocyclic group" described herein may be an aromatic heterocyclic group or a non-aromatic heterocyclic group. Specific examples (specific example group G2) of the "substituted or unsubstituted heterocyclic group" described in this specification include the following unsubstituted heterocyclic group (specific example group G2A) and substituted heterocyclic group (specific example group G2B). (Here, the unsubstituted heterocyclic group refers to the case where the "substituted or unsubstituted heterocyclic group" is an "unsubstituted heterocyclic group", and the substituted heterocyclic group refers to the case where the "substituted or unsubstituted heterocyclic group" is a "substituted heterocyclic group".) In this specification, when the term "heterocyclic group" is simply used, it includes both an "unsubstituted heterocyclic group" and a "substituted heterocyclic group". The term "substituted heterocyclic group" refers to a group in which one or more hydrogen atoms of an "unsubstituted heterocyclic group" are replaced with a substituent. Specific examples of the "substituted heterocyclic group" include the groups in which the hydrogen atoms of the "unsubstituted heterocyclic group" in the specific example group G2A below are replaced, and the examples of the substituted heterocyclic group in the specific example group G2B below are exemplified. The examples of the "unsubstituted heterocyclic group" and the examples of the "substituted heterocyclic group" listed here are merely examples, and the "substituted heterocyclic group" described in this specification also includes the groups in which the hydrogen atoms bonded to the ring-forming atoms of the heterocyclic group itself in the "substituted heterocyclic group" in the specific example group G2B are further replaced with a substituent, and the groups in which the hydrogen atoms of the substituents in the "substituted heterocyclic group" in the specific example group G2B are further replaced with a substituent.

[0024] The specific example group G2A includes, for example, the following unsubstituted heterocyclic groups containing a nitrogen atom (specific example group G2A1), unsubstituted heterocyclic groups containing an oxygen atom (specific example group G2A2), unsubstituted heterocyclic groups containing a sulfur atom (specific example group G2A3), and monovalent heterocyclic groups derived by removing one hydrogen atom from ring structures represented by the following general formulae (TEMP-16) to (TEMP-33) (specific example group G2A4).

[0025] Specific example group G2B includes, for example, the following nitrogen atom-containing substituted heterocyclic groups (specific example group G2B1), oxygen atom-containing substituted heterocyclic groups (specific example group G2B2), sulfur atom-containing substituted heterocyclic groups (specific example group G2B3), and monovalent heterocyclic groups derived from ring structures represented by the following general formulae (TEMP-16) to (TEMP-33), in which one or more hydrogen atoms are replaced with substituents (specific example group G2B4).

[0026] Unsubstituted heterocyclic groups containing a nitrogen atom (specific example group G2A1): Pyrrolyl group, imidazolyl group, A pyrazolyl group, A triazolyl group, Tetrazolyl group, oxazolyl group, an isoxazolyl group, oxadiazolyl group, A thiazolyl group, isothiazolyl group, A thiadiazolyl group, Pyridyl group, pyridazinyl group, pyrimidinyl group, A pyrazinyl group, Triazinyl group, Indolyl groups, isoindolyl group, Indolizinyl group, A quinolizinyl group, A quinolyl group, isoquinolyl group, Cinnolyl group, phthalazinyl group, A quinazolinyl group, A quinoxalinyl group, Benzimidazolyl group, Indazolyl group, A phenanthrolinyl group, A phenanthridinyl group, acridinyl group, A phenazinyl group, A carbazolyl group, Benzocarbazolyl group, morpholino group, phenoxazinyl group, A phenothiazinyl group, Azacarbazolyl and diazacarbazolyl groups.

[0027] Unsubstituted heterocyclic groups containing an oxygen atom (specific example group G2A2): Furyl group, oxazolyl group, an isoxazolyl group, oxadiazolyl group, xanthenyl group, benzofuranyl group, isobenzofuranyl group, Dibenzofuranyl group, naphthobenzofuranyl group, benzoxazolyl group, benzoisoxazolyl group, phenoxazinyl group, morpholino group, Dinaphthofuranyl group, azadibenzofuranyl group, diazadibenzofuranyl group, Azanaphthobenzofuranyl groups, and Diazanaphthobenzofuranyl group.

[0028] Unsubstituted heterocyclic groups containing a sulfur atom (specific example group G2A3): A thienyl group, A thiazolyl group, isothiazolyl group, A thiadiazolyl group, Benzothiophenyl group (benzothienyl group), Isobenzothiophenyl group (isobenzothienyl group), Dibenzothiophenyl group (dibenzothienyl group), Naphthobenzothiophenyl group (naphthobenzothienyl group), benzothiazolyl group, Benzisothiazolyl group, A phenothiazinyl group, Dinaphthothiophenyl group (dinaphthothienyl group), Azadibenzothiophenyl group (azadibenzothienyl group), Diazadibenzothiophenyl group (diazadibenzothienyl group), Azanapthobenzothiophenyl group (azanaphthobenzothienyl group), and Diazanaphthobenzothiophenyl group (diazanaphthobenzothienyl group).

[0029] Monovalent heterocyclic groups derived by removing one hydrogen atom from the ring structures represented by the following general formulae (TEMP-16) to (TEMP-33) (specific example group G2A4):

[0030] [ka]

[0031] [ka]

[0032] In the general formulae (TEMP-16) to (TEMP-33), X A and Y A are each independently an oxygen atom, a sulfur atom, NH, or CH2. A and Y A At least one of is an oxygen atom, a sulfur atom, or NH. In the general formulae (TEMP-16) to (TEMP-33), X A and Y A When at least one of is NH or CH2, the monovalent heterocyclic group derived from the ring structure represented by the general formulas (TEMP-16) to (TEMP-33) includes a monovalent group obtained by removing one hydrogen atom from NH or CH2.

[0033] Substituted heterocyclic groups containing a nitrogen atom (specific example group G2B1): A (9-phenyl)carbazolyl group, (9-biphenylyl)carbazolyl group, (9-phenyl)phenylcarbazolyl group, (9-naphthyl)carbazolyl group, diphenylcarbazol-9-yl group, phenylcarbazol-9-yl group, methylbenzimidazolyl group, Ethyl benzimidazolyl group, phenyltriazinyl group, Biphenylyltriazinyl group, diphenyltriazinyl group, a phenylquinazolinyl group, and a biphenylylquinazolinyl group.

[0034] Substituted heterocyclic groups containing an oxygen atom (specific example group G2B2): phenyldibenzofuranyl group, methyldibenzofuranyl group, t-butyldibenzofuranyl group, and A monovalent residue of spiro[9H-xanthene-9,9'-[9H]fluorene].

[0035] Substituted heterocyclic groups containing sulfur atoms (specific example group G2B3): Phenyldibenzothiophenyl group, methyldibenzothiophenyl group, t-Butyldibenzothiophenyl group, and A monovalent residue of spiro[9H-thioxanthene-9,9'-[9H]fluorene].

[0036] Groups in which one or more hydrogen atoms of a monovalent heterocyclic group derived from a ring structure represented by the above general formulae (TEMP-16) to (TEMP-33) are replaced with a substituent (specific example group G2B4):

[0037] The above "one or more hydrogen atoms of a monovalent heterocyclic group" means one or more hydrogen atoms selected from a hydrogen atom bonded to a ring-forming carbon atom of the monovalent heterocyclic group, a hydrogen atom bonded to a nitrogen atom when at least one of XA and YA is NH, and a hydrogen atom of a methylene group when one of XA and YA is CH2.

[0038] "Substituted or unsubstituted alkyl groups" Specific examples (specific example group G3) of the "substituted or unsubstituted alkyl group" described in this specification include the following unsubstituted alkyl group (specific example group G3A) and substituted alkyl group (specific example group G3B). (Here, the unsubstituted alkyl group refers to the case where the "substituted or unsubstituted alkyl group" is an "unsubstituted alkyl group", and the substituted alkyl group refers to the case where the "substituted or unsubstituted alkyl group" is a "substituted alkyl group".) Hereinafter, when the term "alkyl group" is simply mentioned, it includes both the "unsubstituted alkyl group" and the "substituted alkyl group". The term "substituted alkyl group" refers to a group in which one or more hydrogen atoms in the "unsubstituted alkyl group" are replaced with a substituent. Specific examples of the "substituted alkyl group" include the following "unsubstituted alkyl group" (specific example group G3A) in which one or more hydrogen atoms are replaced with a substituent, and examples of the substituted alkyl group (specific example group G3B). In this specification, the alkyl group in the "unsubstituted alkyl group" refers to a chain-like alkyl group. Therefore, the "unsubstituted alkyl group" includes a straight-chain "unsubstituted alkyl group" and a branched "unsubstituted alkyl group". Note that the examples of the "unsubstituted alkyl group" and the examples of the "substituted alkyl group" listed here are merely examples, and the "substituted alkyl group" described in this specification also includes a group in which a hydrogen atom of the alkyl group itself in the "substituted alkyl group" in the specific example group G3B is further replaced with a substituent, and a group in which a hydrogen atom of a substituent in the "substituted alkyl group" in the specific example group G3B is further replaced with a substituent.

[0039] Unsubstituted alkyl groups (specific example group G3A): Methyl group, Ethyl group, n-propyl group, isopropyl group, n-Butyl group, isobutyl group, s-Butyl group, and t-Butyl group.

[0040] Substituted alkyl groups (specific example group G3B): Heptafluoropropyl group (including isomers), pentafluoroethyl group, 2,2,2-trifluoroethyl group, and Trifluoromethyl group.

[0041] "Substituted or unsubstituted alkenyl group" Specific examples (specific example group G4) of the "substituted or unsubstituted alkenyl group" described in this specification include the following unsubstituted alkenyl group (specific example group G4A) and substituted alkenyl group (specific example group G4B). (Here, the unsubstituted alkenyl group refers to the case where the "substituted or unsubstituted alkenyl group" is an "unsubstituted alkenyl group", and the "substituted alkenyl group" refers to the case where the "substituted or unsubstituted alkenyl group" is a "substituted alkenyl group".) In this specification, the term "alkenyl group" simply includes both an "unsubstituted alkenyl group" and a "substituted alkenyl group". The term "substituted alkenyl group" refers to a group in which one or more hydrogen atoms in an "unsubstituted alkenyl group" are replaced with a substituent. Specific examples of the "substituted alkenyl group" include the following "unsubstituted alkenyl group" (specific example group G4A) having a substituent, and examples of substituted alkenyl groups (specific example group G4B). The examples of the "unsubstituted alkenyl group" and the examples of the "substituted alkenyl group" listed here are merely examples, and the "substituted alkenyl group" described in this specification also includes a group in which a hydrogen atom of the alkenyl group itself in the "substituted alkenyl group" in specific example group G4B is further replaced with a substituent, and a group in which a hydrogen atom of a substituent in the "substituted alkenyl group" in specific example group G4B is further replaced with a substituent.

[0042] Unsubstituted alkenyl groups (specific example group G4A): Vinyl group, Allyl groups, 1-butenyl group, 2-butenyl group, and 3-Butenyl group.

[0043] Substituted alkenyl groups (specific example group G4B): 1,3-butanedienyl group, 1-methylvinyl group, 1-methylallyl group, 1,1-dimethylallyl group, 2-methylallyl group, and 1,2-Dimethylallyl group.

[0044] "Substituted or unsubstituted alkynyl groups" Specific examples (specific example group G5) of the "substituted or unsubstituted alkynyl group" described in this specification include the following unsubstituted alkynyl groups (specific example group G5A). (Here, the unsubstituted alkynyl group refers to the case where the "substituted or unsubstituted alkynyl group" is an "unsubstituted alkynyl group".) Hereinafter, when simply referring to an "alkynyl group", it includes both an "unsubstituted alkynyl group" and a "substituted alkynyl group". The term "substituted alkynyl group" refers to an "unsubstituted alkynyl group" in which one or more hydrogen atoms have been replaced with a substituent. Specific examples of the "substituted alkynyl group" include the following "unsubstituted alkynyl groups" (specific example group G5A) in which one or more hydrogen atoms have been replaced with a substituent.

[0045] Unsubstituted alkynyl groups (specific example group G5A): ethynyl groups.

[0046] "Substituted or unsubstituted cycloalkyl groups" Specific examples (specific example group G6) of the "substituted or unsubstituted cycloalkyl group" described in this specification include the following unsubstituted cycloalkyl group (specific example group G6A) and substituted cycloalkyl group (specific example group G6B). (Here, the unsubstituted cycloalkyl group refers to the case where the "substituted or unsubstituted cycloalkyl group" is an "unsubstituted cycloalkyl group", and the substituted cycloalkyl group refers to the case where the "substituted or unsubstituted cycloalkyl group" is a "substituted cycloalkyl group".) In this specification, when the term "cycloalkyl group" is simply used, it includes both an "unsubstituted cycloalkyl group" and a "substituted cycloalkyl group". The term "substituted cycloalkyl group" refers to a group in which one or more hydrogen atoms in the "unsubstituted cycloalkyl group" are replaced with a substituent. Specific examples of the "substituted cycloalkyl group" include the following "unsubstituted cycloalkyl group" (specific example group G6A) in which one or more hydrogen atoms are replaced with a substituent, and the examples of the substituted cycloalkyl group (specific example group G6B). The examples of the "unsubstituted cycloalkyl group" and the examples of the "substituted cycloalkyl group" listed here are merely examples, and the "substituted cycloalkyl group" described in this specification also includes a group in the "substituted cycloalkyl group" in the specific example group G6B in which one or more hydrogen atoms bonded to a carbon atom of the cycloalkyl group itself are replaced with a substituent, and a group in the "substituted cycloalkyl group" in the specific example group G6B in which a hydrogen atom of a substituent is further replaced with a substituent.

[0047] Unsubstituted cycloalkyl groups (specific example group G6A): A cyclopropyl group, A cyclobutyl group, Cyclopentyl group, cyclohexyl group, 1-adamantyl group, 2-adamantyl group, 1-norbornyl group, and 2-Norbornyl group.

[0048] Substituted cycloalkyl groups (specific example group G6B): 4-Methylcyclohexyl group.

[0049] -Si(R 901 )(R 902 )(R 903 ) a group represented by As described herein, —Si(R 901 )(R 902 )(R 903 Specific examples (specific example group G7) of the group represented by -Si(G1)(G1)(G1), -Si(G1)(G2)(G2), -Si(G1)(G1)(G2), -Si(G2)(G2)(G2), -Si(G3)(G3)(G3), and -Si(G6)(G6)(G6) Here, G1 is a "substituted or unsubstituted aryl group" described in specific example group G1. G2 is a "substituted or unsubstituted heterocyclic group" described in specific example group G2. G3 is a "substituted or unsubstituted alkyl group" described in specific example group G3. G6 is a "substituted or unsubstituted cycloalkyl group" described in specific example group G6. The multiple G1s in -Si(G1)(G1)(G1) are the same as or different from each other. The multiple G2s in -Si(G1)(G2)(G2) are the same as or different from each other. The multiple G1s in -Si(G1)(G1)(G2) are the same as or different from each other. The multiple G2s in -Si(G2)(G2)(G2) are the same as or different from each other. The multiple G3s in -Si(G3)(G3)(G3) are the same as or different from each other. The multiple G6s in -Si(G6)(G6)(G6) are the same as or different from each other.

[0050] -O-(R 904 ) a group represented by As described herein, -O-(R 904 Specific examples (specific example group G8) of the group represented by -O(G1), -O(G2), -O(G3), and -O(G6) Examples include: Where: G1 is a "substituted or unsubstituted aryl group" described in specific example group G1. G2 is a "substituted or unsubstituted heterocyclic group" described in specific example group G2. G3 is a "substituted or unsubstituted alkyl group" described in specific example group G3. G6 is a "substituted or unsubstituted cycloalkyl group" described in specific example group G6.

[0051] -S-(R 905 ) a group represented by As described herein, -S-(R 905 Specific examples (specific example group G9) of the group represented by -S(G1), -S(G2), -S(G3), and -S(G6) Examples include: Where: G1 is a "substituted or unsubstituted aryl group" described in specific example group G1. G2 is a "substituted or unsubstituted heterocyclic group" described in specific example group G2. G3 is a "substituted or unsubstituted alkyl group" described in specific example group G3. G6 is a "substituted or unsubstituted cycloalkyl group" described in specific example group G6.

[0052] -N(R 906 )(R 907 ) a group represented by As described herein, -N(R 906 )(R 907 Specific examples (specific example group G10) of the group represented by -N(G1)(G1), -N(G2)(G2), -N(G1)(G2), -N(G3)(G3), and -N(G6)(G6) Examples include: Where: G1 is a "substituted or unsubstituted aryl group" described in specific example group G1. G2 is a "substituted or unsubstituted heterocyclic group" described in specific example group G2. G3 is a "substituted or unsubstituted alkyl group" described in specific example group G3. G6 is a "substituted or unsubstituted cycloalkyl group" described in specific example group G6. -The multiple G1's in N(G1)(G1) are the same or different from each other. -The multiple G2's in N(G2)(G2) are the same or different from each other. -The multiple G3's in N(G3)(G3) are the same or different from each other. The multiple G6s in -N(G6)(G6) are the same or different from each other.

[0053] "Halogen atoms" Specific examples of the "halogen atom" described in this specification (specific example group G11) include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.

[0054] "Substituted or unsubstituted fluoroalkyl groups" The term "substituted or unsubstituted fluoroalkyl group" as used herein means a group in which at least one hydrogen atom bonded to a carbon atom constituting the alkyl group in the "substituted or unsubstituted alkyl group" is replaced with a fluorine atom, and also includes a group (perfluoro group) in which all hydrogen atoms bonded to carbon atoms constituting the alkyl group in the "substituted or unsubstituted alkyl group" are replaced with fluorine atoms. The number of carbon atoms in the "unsubstituted fluoroalkyl group" is 1 to 50, preferably 1 to 30, and more preferably 1 to 18, unless otherwise specified in the present specification. The term "substituted fluoroalkyl group" means a group in which one or more hydrogen atoms in the "fluoroalkyl group" are replaced with a substituent. The term "substituted fluoroalkyl group" as used herein also includes a group in which one or more hydrogen atoms bonded to a carbon atom in the alkyl chain in the "substituted fluoroalkyl group" are further replaced with a substituent, and a group in which one or more hydrogen atoms in the substituent in the "substituted fluoroalkyl group" are further replaced with a substituent. Specific examples of the "unsubstituted fluoroalkyl group" include the examples of the group in which one or more hydrogen atoms in the "alkyl group" (specific example group G3) are replaced with a fluorine atom.

[0055] "Substituted or unsubstituted haloalkyl groups" The term "substituted or unsubstituted haloalkyl group" as used herein means a group in which at least one hydrogen atom bonded to a carbon atom constituting the alkyl group in the "substituted or unsubstituted alkyl group" is replaced with a halogen atom, and also includes a group in which all hydrogen atoms bonded to carbon atoms constituting the alkyl group in the "substituted or unsubstituted alkyl group" are replaced with halogen atoms. The number of carbon atoms in the "unsubstituted haloalkyl group" is 1 to 50, preferably 1 to 30, and more preferably 1 to 18, unless otherwise specified in the present specification. The term "substituted haloalkyl group" means a group in which one or more hydrogen atoms in the "haloalkyl group" are replaced with a substituent. The term "substituted haloalkyl group" as used herein also includes a group in which one or more hydrogen atoms bonded to a carbon atom in the alkyl chain in the "substituted haloalkyl group" are further replaced with a substituent, and a group in which one or more hydrogen atoms in the substituent in the "substituted haloalkyl group" are further replaced with a substituent. Specific examples of the "unsubstituted haloalkyl group" include the examples of the group in which one or more hydrogen atoms in the "alkyl group" (specific example group G3) are replaced with a halogen atom. Haloalkyl groups are sometimes referred to as halogenated alkyl groups.

[0056] "Substituted or unsubstituted alkoxy groups" A specific example of the "substituted or unsubstituted alkoxy group" described in this specification is a group represented by -O(G3), where G3 is the "substituted or unsubstituted alkyl group" described in specific example group G3. The number of carbon atoms in the "unsubstituted alkoxy group" is 1 to 50, preferably 1 to 30, and more preferably 1 to 18, unless otherwise specified in this specification.

[0057] "Substituted or unsubstituted alkylthio groups" A specific example of the "substituted or unsubstituted alkylthio group" described in this specification is a group represented by -S(G3), where G3 is the "substituted or unsubstituted alkyl group" described in specific example group G3. The number of carbon atoms in the "unsubstituted alkylthio group" is 1 to 50, preferably 1 to 30, and more preferably 1 to 18, unless otherwise specified in this specification.

[0058] "Substituted or unsubstituted aryloxy group" A specific example of the "substituted or unsubstituted aryloxy group" described in this specification is a group represented by -O(G1), where G1 is a "substituted or unsubstituted aryl group" described in specific example group G1. The number of ring carbon atoms of the "unsubstituted aryloxy group" is 6 to 50, preferably 6 to 30, and more preferably 6 to 18, unless otherwise specified in this specification.

[0059] "Substituted or unsubstituted arylthio group" A specific example of the "substituted or unsubstituted arylthio group" described in this specification is a group represented by -S(G1), where G1 is a "substituted or unsubstituted aryl group" described in specific example group G1. The number of ring carbon atoms of the "unsubstituted arylthio group" is 6 to 50, preferably 6 to 30, and more preferably 6 to 18, unless otherwise specified in this specification.

[0060] "Substituted or unsubstituted trialkylsilyl group" A specific example of the "trialkylsilyl group" described in this specification is a group represented by -Si(G3)(G3)(G3), where G3 is a "substituted or unsubstituted alkyl group" described in the specific example group G3. The multiple G3s in -Si(G3)(G3)(G3) are the same or different from each other. The number of carbon atoms in each alkyl group of the "trialkylsilyl group" is 1 to 50, preferably 1 to 20, and more preferably 1 to 6, unless otherwise specified in this specification.

[0061] "Substituted or unsubstituted aralkyl group" A specific example of the "substituted or unsubstituted aralkyl group" described in the present specification is a group represented by -(G3)-(G1), where G3 is a "substituted or unsubstituted alkyl group" described in the specific example group G3, and G1 is a "substituted or unsubstituted aryl group" described in the specific example group G1. Thus, the "aralkyl group" is a group in which a hydrogen atom of an "alkyl group" is replaced with an "aryl group" as a substituent, and is one aspect of a "substituted alkyl group". The "unsubstituted aralkyl group" is an "unsubstituted alkyl group" substituted with an "unsubstituted aryl group", and the carbon number of the "unsubstituted aralkyl group" is 7 to 50, preferably 7 to 30, and more preferably 7 to 18, unless otherwise specified in the present specification. Specific examples of "substituted or unsubstituted aralkyl groups" include benzyl, 1-phenylethyl, 2-phenylethyl, 1-phenylisopropyl, 2-phenylisopropyl, phenyl-t-butyl, α-naphthylmethyl, 1-α-naphthylethyl, 2-α-naphthylethyl, 1-α-naphthylisopropyl, 2-α-naphthylisopropyl, β-naphthylmethyl, 1-β-naphthylethyl, 2-β-naphthylethyl, 1-β-naphthylisopropyl, and 2-β-naphthylisopropyl.

[0062] Unless otherwise specified in the present specification, the substituted or unsubstituted aryl group described in the present specification is preferably a phenyl group, a p-biphenyl group, a m-biphenyl group, an o-biphenyl group, a p-terphenyl-4-yl group, a p-terphenyl-3-yl group, a p-terphenyl-2-yl group, a m-terphenyl-4-yl group, a m-terphenyl-3-yl group, a m-terphenyl-2-yl group, an o-terphenyl-4-yl group, an o-terphenyl-3-yl group, an o-terphenyl-2-yl group, a 1-naphthyl group, a 2-naphthyl group, an anthryl group, a phenanthryl group, a pyrenyl group, a chrysenyl group, a triphenylenyl group, a fluorenyl group, a 9,9'-spirobifluorenyl group, a 9,9-dimethylfluorenyl group, a 9,9-diphenylfluorenyl group, and the like.

[0063] The substituted or unsubstituted heterocyclic group described in the present specification, unless otherwise specified in the present specification, is preferably a pyridyl group, a pyrimidinyl group, a triazinyl group, a quinolyl group, an isoquinolyl group, a quinazolinyl group, a benzimidazolyl group, a phenanthrolinyl group, a carbazolyl group (a 1-carbazolyl group, a 2-carbazolyl group, a 3-carbazolyl group, a 4-carbazolyl group, or a 9-carbazolyl group), a benzocarbazolyl group, an azacarbazolyl group, a diazacarbazolyl group, a dibenzofuranyl group, a naphthobenzofuranyl group, an azadibenzofuranyl group, a diazadibenzofuranyl group, a dibenzothiophenyl group, a naphthobenzothiophenyl group, an aza Examples of such groups include a dibenzothiophenyl group, a diazadibenzothiophenyl group, a (9-phenyl)carbazolyl group (a (9-phenyl)carbazol-1-yl group, a (9-phenyl)carbazol-2-yl group, a (9-phenyl)carbazol-3-yl group, or a (9-phenyl)carbazol-4-yl group), a (9-biphenylyl)carbazolyl group, a (9-phenyl)phenylcarbazolyl group, a diphenylcarbazol-9-yl group, a phenylcarbazol-9-yl group, a phenyltriazinyl group, a biphenylyltriazinyl group, a diphenyltriazinyl group, a phenyldibenzofuranyl group, and a phenyldibenzothiophenyl group.

[0064] In this specification, a carbazolyl group is specifically any of the following groups, unless otherwise specified in the specification.

[0065] [ka]

[0066] In this specification, the (9-phenyl)carbazolyl group is specifically any of the following groups, unless otherwise specified in the specification.

[0067] [ka]

[0068] In the general formulae (TEMP-Cz1) to (TEMP-Cz9), * represents a bonding position.

[0069] In this specification, a dibenzofuranyl group and a dibenzothiophenyl group are specifically any of the following groups, unless otherwise specified in this specification.

[0070] [ka]

[0071] In the above general formulae (TEMP-34) to (TEMP-41), * represents a bonding position.

[0072] The substituted or unsubstituted alkyl groups described herein are preferably methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, t-butyl, and the like, unless otherwise specified herein.

[0073] "Substituted or unsubstituted arylene group" Unless otherwise specified, the "substituted or unsubstituted arylene group" described in this specification is a divalent group derived by removing one hydrogen atom on the aryl ring from the above-mentioned "substituted or unsubstituted aryl group". Specific examples of the "substituted or unsubstituted arylene group" (specific example group G12) include divalent groups derived by removing one hydrogen atom on the aryl ring from the "substituted or unsubstituted aryl group" described in specific example group G1.

[0074] "Substituted or unsubstituted divalent heterocyclic group" Unless otherwise specified, the "substituted or unsubstituted divalent heterocyclic group" described in this specification is a divalent group derived by removing one hydrogen atom on the heterocycle from the above-mentioned "substituted or unsubstituted heterocyclic group". Specific examples of the "substituted or unsubstituted divalent heterocyclic group" (specific example group G13) include divalent groups derived by removing one hydrogen atom on the heterocycle from the "substituted or unsubstituted heterocyclic group" described in specific example group G2.

[0075] "Substituted or unsubstituted alkylene group" Unless otherwise specified, the "substituted or unsubstituted alkylene group" described in this specification is a divalent group derived by removing one hydrogen atom on the alkyl chain from the above-mentioned "substituted or unsubstituted alkyl group". Specific examples of the "substituted or unsubstituted alkylene group" (specific example group G14) include divalent groups derived by removing one hydrogen atom on the alkyl chain from the "substituted or unsubstituted alkyl group" described in specific example group G3.

[0076] The substituted or unsubstituted arylene group described in this specification is preferably any of the groups represented by the following general formulae (TEMP-42) to (TEMP-67), unless otherwise specified in this specification.

[0077] [ka]

[0078] [ka]

[0079] In the general formulae (TEMP-42) to (TEMP-52), Q1 to Q 10 are each independently a hydrogen atom or a substituent. In the above general formulae (TEMP-42) to (TEMP-52), * represents a bonding position.

[0080] [ka]

[0081] In the general formulae (TEMP-53) to (TEMP-62), Q1 to Q 10 are each independently a hydrogen atom or a substituent. Equations Q9 and Q 10 may be bonded to each other via a single bond to form a ring. In the above general formulae (TEMP-53) to (TEMP-62), * represents a bonding position.

[0082] [ka]

[0083] In the general formulae (TEMP-63) to (TEMP-68), Q1 to Q8 each independently represent a hydrogen atom or a substituent. In the above general formulae (TEMP-63) to (TEMP-68), * represents a bonding position.

[0084] The substituted or unsubstituted divalent heterocyclic group described in this specification is preferably any of the groups represented by the following general formulae (TEMP-69) to (TEMP-102), unless otherwise specified in this specification.

[0085] [ka]

[0086] [ka]

[0087] [ka]

[0088] In the general formulae (TEMP-69) to (TEMP-82), Q1 to Q9 each independently represent a hydrogen atom or a substituent.

[0089] [ka]

[0090] [ka]

[0091] [ka]

[0092] [ka]

[0093] In the general formulae (TEMP-83) to (TEMP-102), Q1 to Q8 each independently represent a hydrogen atom or a substituent.

[0094] The above is an explanation of "the substituents described in this specification".

[0095] - "When bonded to form a ring" In this specification, the phrase "one or more of a set consisting of two or more adjacent groups bond to each other to form a substituted or unsubstituted monocycle, bond to each other to form a substituted or unsubstituted fused ring, or are not bonded to each other" means the case where "one or more of a set consisting of two or more adjacent groups bond to each other to form a substituted or unsubstituted monocycle", the case where "one or more of a set consisting of two or more adjacent groups bond to each other to form a substituted or unsubstituted fused ring", and the case where "one or more of a set consisting of two or more adjacent groups are not bonded to each other". In this specification, the cases where "one or more of a set of two or more adjacent rings are bonded to each other to form a substituted or unsubstituted monocyclic ring" and "one or more of a set of two or more adjacent rings are bonded to each other to form a substituted or unsubstituted condensed ring" (hereinafter, these cases may be collectively referred to as "a case where they are bonded to form a ring") will be explained below. The case of an anthracene compound represented by the following general formula (TEMP-103), in which the mother skeleton is an anthracene ring, will be explained as an example.

[0096] [ka]

[0097] For example, R921 ~R 930 In the case where "one or more pairs of adjacent two or more groups are bonded to each other to form a ring," one pair of adjacent two groups is R 921 and R 922 With R 922 and R 923 With R 923 and R 924 With R 924 and R 930 With R 930 and R 925 With R 925 and R 926 With R 926 and R 927 With R 927 and R 928 With R 928 and R 929 and R 929 and R 921 It is paired with .

[0098] The above "one or more pairs" means that two or more pairs of adjacent two or more groups may simultaneously form a ring. For example, R 921 and R 922 and are bonded to ring Q A At the same time, R 925 and R 926 and are bonded to ring Q B When the above general formula (TEMP-103) is formed, the anthracene compound represented by the general formula (TEMP-104) is represented by the following general formula (TEMP-104).

[0099] [ka]

[0100] When a "set of two or more adjacent units" forms a ring, it includes not only the case where a set of two adjacent units is bonded as in the previous example, but also the case where a set of three or more adjacent units is bonded. For example, R 921 and R 922 and are bonded to ring Q A and R 922 and R923 and are bonded to ring Q C The three adjacent (R 921 , R 922 and R 923 In this case, the anthracene compound represented by the general formula (TEMP-103) is represented by the following general formula (TEMP-105). In the following general formula (TEMP-105), the ring Q A and Ring Q C is R 922 Share.

[0101] [ka]

[0102] The "monocyclic ring" or "condensed ring" formed may be a saturated or unsaturated ring as the structure of only the ring formed. Even when "one of the pairs of adjacent two" forms a "monocyclic ring" or a "condensed ring", the "monocyclic ring" or the "condensed ring" may form a saturated or unsaturated ring. For example, the ring Q formed in the general formula (TEMP-104) may be a saturated or unsaturated ring. A and Ring Q B are "monocyclic" or "condensed rings". In addition, the ring Q formed in the general formula (TEMP-105) A , and ring Q C is a "fused ring". The ring Q in the above general formula (TEMP-105) A and Kan Q C That is, Ring Q A and Kan Q C The ring Q in the general formula (TMEP-104) is condensed to form a condensed ring. A If is a benzene ring, then ring Q A The ring Q in the general formula (TMEP-104) is a monocyclic ring. A If is a naphthalene ring, then ring Q A is a fused ring.

[0103] The term "unsaturated ring" refers to an aromatic hydrocarbon ring or an aromatic heterocyclic ring. The term "saturated ring" refers to an aliphatic hydrocarbon ring or a non-aromatic heterocyclic ring. Specific examples of the aromatic hydrocarbon ring include structures in which the groups given as specific examples in the specific example group G1 are terminated with a hydrogen atom. Specific examples of the aromatic heterocycle include structures in which the aromatic heterocyclic groups exemplified as specific examples in the specific example group G2 are terminated with a hydrogen atom. Specific examples of the aliphatic hydrocarbon ring include structures in which the groups given as specific examples in the specific example group G6 are terminated with a hydrogen atom. The term "form a ring" means that a ring is formed only with a plurality of atoms of the parent skeleton, or with a plurality of atoms of the parent skeleton and one or more optional elements. For example, R 921 and R 922 and are bonded together to form a ring Q A is R 921 The carbon atom of the anthracene skeleton to which R is bonded 922 It means a ring formed by the carbon atom of the anthracene skeleton to which R is bonded and one or more arbitrary elements. 921 and R 922 Todekan Q A In the case where R 921 The carbon atom of the anthracene skeleton to which R is bonded 922 When the carbon atom of the anthracene skeleton to which R is bonded forms a monocyclic unsaturated ring with four carbon atoms, R 921 and R 922 The ring formed by this is a benzene ring.

[0104] Here, unless otherwise specified in the present specification, the "arbitrary element" is preferably at least one element selected from the group consisting of carbon, nitrogen, oxygen, and sulfur. In the arbitrary element (for example, in the case of a carbon element or a nitrogen element), a bond that does not form a ring may be terminated with a hydrogen atom or the like, or may be substituted with an "arbitrary substituent" described below. When an arbitrary element other than a carbon element is included, the ring formed is a heterocycle. Unless otherwise specified in this specification, the "one or more arbitrary elements" constituting a single ring or a condensed ring is preferably 2 or more and 15 or less, more preferably 3 or more and 12 or less, and even more preferably 3 or more and 5 or less. Unless otherwise specified in this specification, of the "monocyclic ring" and the "condensed ring", the "monocyclic ring" is preferred. Unless otherwise specified in this specification, of the "saturated ring" and the "unsaturated ring", the "unsaturated ring" is preferred. Unless otherwise specified in this specification, a "monocyclic ring" is preferably a benzene ring. Unless otherwise specified in this specification, the "unsaturated ring" is preferably a benzene ring. When "one or more of a set of two or more adjacent rings" "combine with each other to form a substituted or unsubstituted monocyclic ring" or "combine with each other to form a substituted or unsubstituted fused ring", unless otherwise specified in this specification, preferably, one or more of a set of two or more adjacent rings combine with each other to form a substituted or unsubstituted "unsaturated ring" consisting of a plurality of atoms of the parent skeleton and at least one element selected from the group consisting of 1 to 15 carbon elements, nitrogen elements, oxygen elements, and sulfur elements.

[0105] When the above-mentioned "monocyclic ring" or "condensed ring" has a substituent, the substituent is, for example, the "optional substituent" described later. When the above-mentioned "monocyclic ring" or "condensed ring" has a substituent, specific examples of the substituent are the substituents described in the above-mentioned section "Substituents described in this specification". When the above-mentioned "saturated ring" or "unsaturated ring" has a substituent, the substituent is, for example, the "optional substituent" described below. When the above-mentioned "monocyclic ring" or "condensed ring" has a substituent, specific examples of the substituent are the substituents described in the above section "Substituents described in this specification". The above is an explanation of the case where "one or more pairs of adjacent groups bond with each other to form a substituted or unsubstituted monocyclic ring" and the case where "one or more pairs of adjacent groups bond with each other to form a substituted or unsubstituted fused ring" ("combined to form a ring").

[0106] Substituents in the phrase "substituted or unsubstituted" In one embodiment of the present specification, the substituent in the case of "substituted or unsubstituted" (sometimes referred to as "optional substituent" in the present specification) is, for example, an unsubstituted alkyl group having 1 to 50 carbon atoms; an unsubstituted alkenyl group having 2 to 50 carbon atoms, an unsubstituted alkynyl group having 2 to 50 carbon atoms, an unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms; -Si(R 901 )(R 902 )(R 903 ), -O-(R 904 ), -S-(R 905 ), -N(R 906 )(R 907 ), Halogen atoms, cyano groups, nitro groups, an unsubstituted aryl group having 6 to 50 ring carbon atoms, and Unsubstituted heterocyclic group having 5 to 50 ring atoms and the like, Here, R 901 ~R 907 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms. R 901 If there are two or more, there are two or more R 901 are identical or different from each other, R 902 If there are two or more, there are two or more R 902 are identical or different from each other, R 903If there are two or more, there are two or more R 903 are identical or different from each other, R 904 If there are two or more, there are two or more R 904 are identical or different from each other, R 905 If there are two or more, there are two or more R 905 are identical or different from each other, R 906 If there are two or more, there are two or more R 906 are identical or different from each other, R 907 If there are two or more, there are two or more R 907 are the same or different from each other.

[0107] In one embodiment, the substituent in the above "substituted or unsubstituted" is: an alkyl group having 1 to 50 carbon atoms; an aryl group having 6 to 50 ring carbon atoms, and Heterocyclic groups with 5 to 50 ring atoms is a group selected from the group consisting of:

[0108] In one embodiment, the substituent in the above "substituted or unsubstituted" is: an alkyl group having 1 to 18 carbon atoms; An aryl group having 6 to 18 ring carbon atoms, and Heterocyclic groups with 5 to 18 ring atoms is a group selected from the group consisting of:

[0109] Specific examples of each group of the above optional substituents are the specific examples of the substituents described above in the section "Substituents described in this specification."

[0110] Unless otherwise specified in this specification, any adjacent substituents may be combined with each other to form a "saturated ring" or an "unsaturated ring", preferably a substituted or unsubstituted saturated 5-membered ring, a substituted or unsubstituted saturated 6-membered ring, a substituted or unsubstituted unsaturated 5-membered ring, or a substituted or unsubstituted unsaturated 6-membered ring, more preferably a benzene ring. Unless otherwise specified in the present specification, the optional substituent may further have a substituent. The substituent that the optional substituent further has is the same as the optional substituent described above.

[0111] In this specification, a numerical range expressed using "AA to BB" means a range including the number AA written before "AA to BB" as the lower limit and the number BB written after "AA to BB" as the upper limit.

[0112] First Embodiment (Organic electroluminescence element) The organic electroluminescence element according to the present embodiment has an anode, a cathode, a first light-emitting layer, and a second light-emitting layer, the first light-emitting layer and the second light-emitting layer being disposed between the anode and the cathode, the first light-emitting layer including a first host material, a first organic material, and a first dopant material, the second light-emitting layer including a second host material and a second dopant material, the first host material, the first organic material, and the second host material being compounds having different structures, the first dopant material and the second dopant material being compounds having the same structure or compounds having different structures, and the first host material, the first organic material, the second host material, the first dopant material, and the second dopant material satisfy the relationships of the following mathematical formulas (Mathematical Formula 1), (Mathematical Formula 2), (Mathematical Formula 3), (Mathematical Formula 5), ​​and (Mathematical Formula 6). T1(H1)>T1(H3) ... (Number 1) T1(H2)>T1(H3) ...(Number 2) T1(D1)>T1(H1) ... (Number 3) S1(H1)>S1(D1) ... (Number 5) S1(H2)>S1(D1) ... (Number 6)

[0113] (In the above formulas (1), (2), (3), (5) and (6), T1(H1) is the triplet energy (unit: eV) of the first host material; T1(H2) is the triplet energy (unit: eV) of the first organic material; T1(H3) is the triplet energy (unit: eV) of the second host material; T1(D1) is the triplet energy of the first dopant material (unit: eV); S1(H1) is the singlet energy (unit: eV) of the first host material, S1(H2) is the singlet energy (unit: eV) of the first organic material; S1(D1) is the singlet energy of the first dopant material (unit: eV).

[0114] According to this embodiment, it is possible to provide an organic electroluminescence element in which the decrease in chromaticity is suppressed and the luminous efficiency is improved.

[0115] Conventionally, Triplet-Tripret-Annhilation (sometimes referred to as TTA) has been known as a technique for improving the luminous efficiency of an organic electroluminescence element. TTA is a mechanism in which triplet excitons collide with each other to generate singlet excitons. The TTA mechanism is sometimes referred to as the TTF mechanism, as described in Patent Document 6.

[0116] The TTF phenomenon will be explained. Holes injected from the anode and electrons injected from the cathode recombine in the light-emitting layer to generate excitons. As has been known in the past, the spin state is 25% singlet excitons and 75% triplet excitons. In conventionally known fluorescent elements, 25% of the singlet excitons emit light when they relax to the ground state, but the remaining 75% of the triplet excitons return to the ground state through a thermal deactivation process without emitting light. Therefore, the theoretical limit of the internal quantum efficiency of conventional fluorescent elements was said to be 25%. On the other hand, the behavior of triplet excitons generated inside organic materials has been theoretically investigated. According to S.M. Bachilo et al. (J.Phys.Cem.A,104,7711(2000)), if it is assumed that higher-order excitons such as quintets immediately return to triplet states, triplet excitons (hereafter, 3 A * When the density of triplet excitons (hereinafter referred to as triplet excitons) increases, the triplet excitons collide with each other and the reaction shown in the following formula occurs. Here, 1 A represents the ground state, 1 A * represents the lowest excited singlet exciton. 3 A * + 3 A * →(4 / 9) 1 A+(1 / 9) 1 A * +(13 / 9) 3 A * That is, 5 3 A * →4 1 A+1A *It is predicted that 1 / 5, or 20%, of the 75% of triplet excitons initially generated will change to singlet excitons. Therefore, the singlet excitons that contribute as light will be 40%, which is the 25% initially generated plus 75% × (1 / 5) = 15%. In this case, the emission ratio of TTF-derived light in the total emission intensity (TTF ratio) will be 15 / 40, or 37.5%. In addition, if it is assumed that the 75% of the triplet excitons initially generated collide with each other to generate singlet excitons (one singlet exciton is generated from two triplet excitons), a very high internal quantum efficiency of 62.5% will be obtained by adding 75% × (1 / 2) = 37.5% to the 25% of the initially generated singlet excitons. In this case, the TTF ratio is 37.5 / 62.5 = 60%.

[0117] When the luminous efficiency of an organic EL element having a plurality of stacked luminous layers is improved by utilizing the above-mentioned TTF mechanism, the chromaticity may be reduced. The present inventors have found that the luminous layer arranged on the anode side contains not one type of host material (first host material) but a plurality of materials (for example, a first host material and a first organic material), thereby improving the luminous efficiency and suppressing the reduction in chromaticity. One of the causes of the reduction in chromaticity of an organic EL element is thought to be stacking of molecules of the host material. Since the luminous layer of the organic EL element according to this embodiment contains a first host material and a first organic material having different compound structures, stacking of molecules of the host material is suppressed, and the reduction in chromaticity of the organic EL element is thought to be suppressed.

[0118] According to the organic electroluminescence element of this embodiment, triplet excitons generated by recombination of holes and electrons in the first light-emitting layer are considered to be difficult to quench even if there are excess carriers at the interface between the first light-emitting layer and the organic layer that is in direct contact with the first light-emitting layer. For example, when the recombination region is locally present at the interface between the first light-emitting layer and the hole transport layer or the electron blocking layer, quenching due to excess electrons is considered. On the other hand, when the recombination region is locally present at the interface between the first light-emitting layer and the electron transport layer or the hole blocking layer, quenching due to excess holes is considered. The organic electroluminescence device according to this embodiment has at least two light-emitting layers (i.e., a first light-emitting layer and a second light-emitting layer) that satisfy a predetermined relationship, and the triplet energy T1(H1) of the first host material and the triplet energy T1(H2) of the first organic material in the first light-emitting layer, and the triplet energy T1(H3) of the second host material in the second light-emitting layer satisfy the relationship represented by the above-mentioned mathematical formulas (Mathematical Formula 1) and (Mathematical Formula 2). By providing the first light-emitting layer and the second light-emitting layer so as to satisfy the relationship of the above formulas (Mathematical formula 1) and (Mathematical formula 2), triplet excitons generated in the first light-emitting layer can be transferred to the second light-emitting layer without being quenched by excess carriers, and reverse transfer from the second light-emitting layer to the first light-emitting layer can be suppressed. As a result, the TTF mechanism is expressed in the second light-emitting layer, singlet excitons are efficiently generated, and the luminous efficiency is improved. In this manner, the organic electroluminescence element comprises a first light-emitting layer that mainly generates triplet excitons, and a second light-emitting layer that mainly exerts the TTF mechanism by utilizing triplet excitons transferred from the first light-emitting layer, as different regions, and uses a compound having a triplet energy smaller than those of the first host material and the first organic material in the first light-emitting layer as the second host material in the second light-emitting layer, thereby providing a difference in triplet energy, thereby improving the luminous efficiency.

[0119] In this embodiment, the triplet energies of the first host material and the first dopant material satisfy the relationship of Formula (Formula 3). By satisfying the relationship of Formula (Formula 3), the triplet excitons generated in the first light-emitting layer move not on the molecules of the first dopant material having a higher triplet energy but on the molecules of the first host material, so that they are more likely to move to the second light-emitting layer.

[0120] When the first host material, the first organic material, and the first dopant material satisfy the relationships of Formulas (Formula 5) and (Formula 6), the singlet excitons generated on the molecules of the first host material and the first organic material are more likely to transfer energy from the first host material and the first organic material to the first dopant material, contributing to the fluorescent emission of the first dopant material.

[0121] In the organic EL element according to this embodiment, it is preferable that the triplet energy T1(H2) of the first organic material and the triplet energy T1(D1) of the first dopant material satisfy the relationship of the following Formula (Formula 4). T1(D1)>T1(H2) …(Formula 4)

[0122] In the organic EL element according to this embodiment, it is preferable that the triplet energy T1(H1) of the first host material and the triplet energy T1(H3) of the second host material satisfy the relationship of the following Formula (Formula 1A). T1(H1)-T1(H3)>0.03eV …(Formula 1A)

[0123] In one aspect of the organic EL element according to this embodiment, the singlet energy S1(H1) of the first host material and the singlet energy S1(H2) of the first organic material satisfy the relationship of the following Formula (Formula 5A). S1(H1)>S1(H2) …(Formula 5A) Also, in one aspect of the organic EL element according to this embodiment, the singlet energy S1(H1) of the first host material and the singlet energy S1(H2) of the first organic material satisfy the relationship of the following Formula (Formula 5B). S1(H1)<S1(H2) …(Formula 5B)

[0124] (Triplet energy T1) The triplet energy T1 can be measured by the following method. The compound to be measured was dissolved in EPA (diethyl ether:isopentane:ethanol = 5:5:2 (volume ratio)) at 10 -5 mol / L or more 10 -4 The phosphorescence spectrum (vertical axis: phosphorescence intensity, horizontal axis: wavelength) of this sample is measured at low temperature (77[K]), a tangent is drawn to the rising edge of the phosphorescence spectrum on the short wavelength side, and the wavelength value λ at the intersection of the tangent and the horizontal axis is determined. edge The amount of energy calculated from the following conversion formula (F1) based on [nm] is the triplet energy T1. Conversion formula (F1): T1[eV]=1239.85 / λ edge

[0125] The tangent to the rising edge of the phosphorescence spectrum on the short wavelength side is drawn as follows. When moving along the spectral curve from the short wavelength side of the phosphorescence spectrum to the shortest maximum of the spectral maxima, consider the tangent at each point on the curve toward the long wavelength side. The slope of this tangent increases as the curve rises (i.e., as the vertical axis increases). The tangent drawn at the point where this slope is at its maximum (i.e., the tangent at the inflection point) is the tangent to the rising edge of the phosphorescence spectrum on the short wavelength side. Note that a maximum point having a peak intensity of 15% or less of the maximum peak intensity of the spectrum is not included in the above-mentioned maximum value on the shortest wavelength side, and the tangent drawn at the point where the slope value is the maximum value that is closest to the maximum value on the shortest wavelength side is regarded as the tangent to the rising edge on the short wavelength side of the phosphorescence spectrum. Phosphorescence can be measured using a spectrofluorometer body, model F-4500, manufactured by Hitachi High-Technologies Corp. However, the measuring device is not limited to this, and measurements may be performed by combining a cooling device, a low-temperature container, an excitation light source, and a light receiving device.

[0126] (Singlet energy S1) The method for measuring the singlet energy S1 using a solution (sometimes referred to as a solution method) includes the following method. 10 of the compounds to be measured -5 mol / L or more 10 -4 A toluene solution of less than mol / L is prepared and placed in a quartz cell, and the absorption spectrum of this sample (vertical axis: absorption intensity, horizontal axis: wavelength) is measured at room temperature (300K). A tangent line is drawn to the falling edge on the long wavelength side of this absorption spectrum, and the wavelength value λedge [nm] at the intersection of the tangent line and the horizontal axis is substituted into the following conversion formula (F2) to calculate the singlet energy. Conversion formula (F2): S1[eV]=1239.85 / λedge An example of an absorption spectrum measuring device is a spectrophotometer manufactured by Hitachi (device name: U3310), but is not limited to this.

[0127] The tangent to the falling edge on the long wavelength side of the absorption spectrum is drawn as follows. When moving along the spectral curve from the maximum value on the longest wavelength side among the maximum values ​​of the absorption spectrum in the direction towards longer wavelengths, consider the tangent at each point on the curve. As the curve falls (i.e., as the value on the vertical axis decreases), the slope of this tangent decreases and then increases repeatedly. The tangent drawn at the point where the slope is at its minimum value on the longest wavelength side (excluding cases where the absorbance is 0.1 or less) is regarded as the tangent to the falling edge on the long wavelength side of the absorption spectrum. Note that maximum points with absorbance values ​​of 0.2 or less are not included in the maximum value on the longest wavelength side.

[0128] The organic EL element according to this embodiment preferably corresponds to at least one of the cases where the first host material satisfies the relationship of the following mathematical formula (Mathematical Formula 7) and the case where the first organic material satisfies the relationship of the following mathematical formula (Mathematical Formula 8). ΔFWHM(H1)=HWF(H1)-HWS(H1)≦15…(Math. 7) ΔFWHM(H2)=HWF(H2)-HWS(H2)≦15…(Math. 8) (In the above formulas (7) and (8), HWF(H1) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the film of the first host material, HWS(H1) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the solution of the first host material, ΔFWHM(H1) is the difference between HWF(H1) and HWS(H1), HWF(H2) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the film of the first organic material, HWS(H2) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the solution of the first organic material, ΔFWHM(H2) is the difference between HWF(H2) and HWS(H2).

[0129] The organic EL element according to this embodiment corresponds to at least any of the following cases: a case in which the first host material satisfies the relationship in Formula (7) and the first organic material does not satisfy the relationship in Formula (8); a case in which the first host material does not satisfy the relationship in Formula (7) and the first organic material satisfies the relationship in Formula (8); and a case in which the first host material satisfies the relationship in Formula (7) and the first organic material also satisfies the relationship in Formula (8). By using a compound in which the difference between the FWHM of the film and the FWHM of the solution is equal to or less than a predetermined value as the host material, stacking of the molecules of the host material is easily suppressed, and as a result, it is thought that a decrease in chromaticity is easily suppressed. When molecules of a host material are stacked in a film such as an emission layer, the full width at half maximum (FWHM) of the photoluminescence spectrum of the film becomes wider than the FWHM of the photoluminescence spectrum of the solution. Therefore, when a compound in which the difference between the FWHM of the film and the FWHM of the solution exceeds a certain value is used as a host material, the molecules of the host material tend to stack in the emission layer, which is thought to reduce the chromaticity of the organic EL device.

[0130] Half width of solution (HWS) The method for measuring the full width at half maximum (FWHM) of a compound solution is as follows. (Note that in this specification, "full width at half maximum (FWHM) of a compound in solution" may be abbreviated as HWS.) The compound to be measured is 5.0 x 10 -6 The sample is dissolved in toluene at a concentration of mol / L to prepare a measurement sample. The measurement sample is placed in a quartz cell and irradiated with excitation light at room temperature (300K), and the fluorescence spectrum (vertical axis: fluorescence intensity, horizontal axis: wavelength) is measured. For example, a Hitachi High-Tech Science F-7000 spectrofluorophotometer is used to measure the fluorescence spectrum. The HWS (unit: nm) is calculated by measuring the wavelength width at which the intensity is half the intensity of the peak wavelength of the measured fluorescence spectrum.

[0131] Half-width of film (HWF) The method for measuring the full width at half maximum (FWHM) of the compound film is as follows. (Note that in this specification, the "full width at half maximum (FWHM) of the compound film" may be abbreviated as HWF.) A quartz substrate measuring 20 mm x 10 mm x 1 mm in thickness is ultrasonically cleaned in isopropyl alcohol for 5 minutes, and then UV ozone cleaned for 30 minutes. The quartz substrate after UV ozone cleaning is attached to a substrate holder of a vacuum deposition apparatus, and a film having a thickness of 50 nm is formed using the compound to be measured. In this way, a sample for half-width measurement is prepared, and the fluorescence spectrum of the film of the sample for half-width measurement is measured. For example, a spectrofluorophotometer F-7000 model manufactured by Hitachi High-Tech Science Corporation is used for the fluorescence spectrum measurement. The HWF (unit: nm) is calculated by measuring the wavelength width at which the intensity is half the intensity of the peak wavelength of the measured fluorescence spectrum.

[0132] In one aspect of the organic EL element according to this embodiment, the first host material and the first organic material satisfy the relationship of the following mathematical formula (Mathematical Formula 9). Ip(H1)≧Ip(H2) …(Number 9) In one aspect of the organic EL element according to this embodiment, the first host material and the first organic material satisfy the relationship of the following mathematical formula (Mathematical Formula 9A). Ip(H1) < Ip(H2) … (Equation 9A) (In the above equations (Equation 9) and (Equation 9A), Ip(H1) is the ionization potential (unit: eV) of the first host material, and Ip(H2) is the ionization potential (unit: eV) of the first organic material.) In this specification, the ionization potential is measured using a photoelectron spectrometer under atmospheric conditions. Specifically, the ionization potential can be measured by the method described in the examples.)

[0133] (Emission wavelength of the organic EL element) The organic electroluminescence element according to this embodiment preferably emits light with a maximum peak wavelength of 500 nm or less during element driving.) The organic electroluminescence element according to this embodiment more preferably emits light with a maximum peak wavelength of 430 nm or more and 480 nm or less during element driving.) The measurement of the maximum peak wavelength of the light emitted by the organic EL element during element driving is performed as follows. When a voltage is applied to the organic EL element so that the current density is 10 mA / cm 2 the spectral emission luminance spectrum is measured with a spectral emission luminance meter CS-2000 (manufactured by Konica Minolta, Inc.). In the obtained spectral emission luminance spectrum, the peak wavelength of the emission spectrum at which the emission intensity is maximum is measured and taken as the maximum peak wavelength (unit: nm).)

[0134] In the organic EL element according to this embodiment, the first light-emitting layer may be disposed between the anode and the cathode, and the second light-emitting layer may be disposed between the first light-emitting layer and the cathode.) In the organic EL element according to this embodiment, the second light-emitting layer may be disposed between the anode and the cathode, and the first light-emitting layer may be disposed between the second light-emitting layer and the cathode.) That is, the organic EL element according to this embodiment may have a first light-emitting layer and a second light-emitting layer in this order from the anode side, or may have a second light-emitting layer and a first light-emitting layer in this order from the anode side. In either case of the order of the first light-emitting layer and the second light-emitting layer, by selecting a combination of materials that satisfies the relationship of the above formulas (Mathematical formula 1) and (Mathematical formula 2), the effect of the light-emitting layer having a laminated structure can be expected.

[0135] (First Light-Emitting Layer) The first light-emitting layer contains a first host material and a first organic material. The first host material, the first organic material, and the second host material contained in the second light-emitting layer are compounds having structures different from each other. The first light-emitting layer further contains a first dopant material. The first dopant material and the second dopant material contained in the second light-emitting layer are compounds having the same structure or different structures.

[0136] In the organic EL device according to this embodiment, the first dopant material is preferably a compound that does not contain an azine ring structure in the molecule.

[0137] In the organic EL device according to this embodiment, the first dopant material is preferably not a boron-containing complex, and more preferably the first dopant material is not a complex.

[0138] In the organic EL device according to this embodiment, it is preferable that the first light-emitting layer does not contain a metal complex. It is also preferable that the first light-emitting layer does not contain a boron-containing complex.

[0139] In the organic EL device according to this embodiment, the first emitting layer preferably does not contain a phosphorescent material (dopant material). The first light-emitting layer preferably does not contain a heavy metal complex or a phosphorescent rare earth metal complex, for example, an iridium complex, an osmium complex, or a platinum complex.

[0140] In the organic EL device according to the present embodiment, the first dopant material is preferably a light-emitting compound, more preferably a fluorescent compound. In the organic EL device according to the present embodiment, the first dopant material is preferably a compound that exhibits emission with a maximum peak wavelength of 500 nm or less, more preferably a compound that exhibits emission with a maximum peak wavelength of 470 nm or less. In the organic EL element according to this embodiment, the first dopant material is preferably a compound exhibiting fluorescent emission having a maximum peak wavelength of 500 nm or less, and more preferably a fluorescent compound exhibiting fluorescent emission having a maximum peak wavelength of 470 nm or less.

[0141] The method for measuring the maximum peak wavelength of a compound is as follows. A 5 μmol / L toluene solution of the compound to be measured is prepared and placed in a quartz cell, and the emission spectrum (vertical axis: emission intensity, horizontal axis: wavelength) of this sample is measured at room temperature (300K). The emission spectrum can be measured using a spectrofluorophotometer (device name: F-7000) manufactured by Hitachi High-Tech Science Corporation. Note that the emission spectrum measuring device is not limited to the device used here. In the emission spectrum, the peak wavelength at which the emission intensity is maximum is defined as the maximum peak wavelength. Note that in this specification, the maximum peak wavelength may be referred to as the maximum fluorescence emission peak wavelength (FL-peak).

[0142] In the emission spectrum of the first dopant material, the peak at which the emission intensity is maximum is defined as the maximum peak, and the height of the maximum peak is defined as 1. It is preferable that the heights of other peaks appearing in the emission spectrum are less than 0.6. Note that the peaks in the emission spectrum are defined as maximum values. It is also preferred that the emission spectrum of the first dopant material has less than three peaks.

[0143] In the organic EL element according to this embodiment, the first light-emitting layer preferably emits light having a maximum peak wavelength of 500 nm or less when the element is in operation, and more preferably emits light having a maximum peak wavelength of 470 nm or less when the element is in operation.

[0144] Maximum peak wavelength λp of light emitted from the light-emitting layer when the device is in operation The maximum peak wavelength λp1 of the light emitted from the first light-emitting layer when the element is driven is obtained when the second light-emitting layer is made of the same material as the first light-emitting layer and the current density of the organic EL element is 10 mA / cm 2 The spectral radiance spectrum when a voltage is applied to the element so that: is measured using a spectroradiometer CS-2000 (manufactured by Konica Minolta, Inc.) From the obtained spectral radiance spectrum, the maximum peak wavelength λp1 (unit: nm) is calculated. The maximum peak wavelength λp2 of the light emitted from the second light-emitting layer when the element is driven is obtained by producing an organic EL element using the same material for the first light-emitting layer as for the second light-emitting layer, and the current density of the organic EL element is 10 mA / cm 2 The spectral radiance spectrum when a voltage is applied to the element so that: is measured using a spectroradiometer CS-2000 (manufactured by Konica Minolta, Inc.) The maximum peak wavelength λp2 (unit: nm) is calculated from the obtained spectral radiance spectrum.

[0145] In this specification, the term "host material" refers to a material that is contained in an amount of, for example, "50% by mass or more of the total mass of a layer." In this embodiment, the first host material is included in, for example, 50% by mass or more of the total mass of the first light-emitting layer. In this embodiment, the first host material is included in, for example, 60% by mass or more of the total mass of the first light-emitting layer, 70% by mass or more of the total mass of the first light-emitting layer, 80% by mass or more of the total mass of the first light-emitting layer, 90% by mass or more of the total mass of the first light-emitting layer, or 95% by mass or more of the total mass of the first light-emitting layer. In this embodiment, the upper limit of the total amount of the first host material, the first organic material, and the first dopant material is 100% by mass of the total mass of the first light-emitting layer.

[0146] In the organic EL device according to this embodiment, the first emitting layer contains the first host material and the first organic material in a total mass M T and the mass M1 of the first host material preferably satisfy the relationship of the following mathematical formula (Mathematical Formula 11). 50≦(M1 / M T )×100<100…(Number 11)

[0147] In the organic EL device according to this embodiment, the first light-emitting layer preferably contains the first dopant material in an amount of 0.5 mass % or more of the total mass of the first light-emitting layer, preferably 1 mass % or more of the total mass of the first light-emitting layer, preferably more than 1.1 mass %, more preferably 1.2 mass % or more of the total mass of the first light-emitting layer, and even more preferably 1.5 mass % or more of the total mass of the first light-emitting layer. The first light-emitting layer preferably contains the first dopant material in an amount of 10 mass % or less of the total mass of the first light-emitting layer, more preferably 7 mass % or less of the total mass of the first light-emitting layer, and even more preferably 5 mass % or less of the total mass of the first light-emitting layer.

[0148] In this embodiment, the first emitting layer may contain materials other than the first host material, the first organic material, and the first dopant material. The first light-emitting layer may contain only one type of first host material or may contain two or more types. The first light-emitting layer may contain only one type of first organic material or may contain two or more types. The first light-emitting layer may contain only one type of first dopant material or may contain two or more types.

[0149] In the organic EL device according to this embodiment, the thickness of the first light-emitting layer is preferably 3 nm or more, and more preferably 5 nm or more. If the thickness of the first light-emitting layer is 3 nm or more, the thickness is sufficient to cause recombination of holes and electrons in the first light-emitting layer. In the organic EL device according to this embodiment, the thickness of the first emitting layer is preferably 15 nm or less, more preferably 10 nm or less. If the thickness of the first emitting layer is 15 nm or less, the thickness is thin enough for triplet excitons to move to the second emitting layer. In the organic EL element according to this embodiment, the thickness of the first light-emitting layer is more preferably 3 nm or more and 15 nm or less.

[0150] (Second Light Emitting Layer) The second emitting layer contains a second host material. The second host material is a compound having a structure different from that of the first host material and the first organic material contained in the first emitting layer. The second light-emitting layer further includes a second dopant material. The second dopant material and the first dopant material contained in the first light-emitting layer are compounds having the same structure or different structures.

[0151] In the organic EL device according to the present embodiment, the second dopant material is preferably a light-emitting compound, more preferably a fluorescent compound. In the organic EL device according to the present embodiment, the second dopant material is preferably a compound that exhibits emission with a maximum peak wavelength of 500 nm or less, more preferably a compound that exhibits emission with a maximum peak wavelength of 470 nm or less. In the organic EL element according to this embodiment, the first dopant material is preferably a compound exhibiting fluorescent emission having a maximum peak wavelength of 500 nm or less, and more preferably a fluorescent compound exhibiting fluorescent emission having a maximum peak wavelength of 470 nm or less.

[0152] In the organic EL element according to this embodiment, the second light-emitting layer preferably emits light having a maximum peak wavelength of 500 nm or less when the element is in operation, and more preferably emits light having a maximum peak wavelength of 470 nm or less when the element is in operation.

[0153] In the organic EL element according to this embodiment, the half width of the maximum peak of the second dopant material is preferably 1 nm or more and 30 nm or less, and more preferably 1 nm or more and 20 nm or less.

[0154] In the organic EL element according to this embodiment, it is preferable that the triplet energy T1 (D2) of the second dopant material and the triplet energy T1 (H3) of the second host material satisfy the relationship of the following mathematical formula (Mathematical Formula 12). T1(D2)>T1(H3) …(Number 12)

[0155] In the organic EL device according to this embodiment, the second dopant material and the second host material satisfy the relationship of the above formula (Mathematical formula 12), so that triplet excitons generated in the first emitting layer transfer energy to the molecules of the second host material, not to the second dopant material having a higher triplet energy, when they move to the second emitting layer. In addition, triplet excitons generated by recombination of holes and electrons on the molecules of the second host material do not transfer to the second dopant material having a higher triplet energy. Triplet excitons generated by recombination on the molecules of the second dopant material quickly transfer energy to the molecules of the second host material. Triplet excitons of the second host material do not transfer to the second dopant material, but efficiently collide with each other on the molecules of the second host material due to the TTF phenomenon, thereby generating singlet excitons.

[0156] In the organic EL device according to this embodiment, it is preferable that the singlet energy S1(H3) of the second host material and the singlet energy S1(D2) of the second dopant material satisfy the relationship of the following mathematical formula (Mathematical Formula 13). S1(H3)>S1(D2)…(Number 13)

[0157] In the organic EL element according to this embodiment, the second dopant material and the second host material satisfy the relationship of the above-mentioned mathematical formula (Mathematical Formula 13), and thus the singlet energy of the second dopant material is smaller than the singlet energy of the second host material. Thus, the singlet excitons generated by the TTF phenomenon transfer energy from the second host material to the second dopant material, and contribute to the fluorescent emission of the second dopant material.

[0158] In the organic EL device according to this embodiment, the second dopant material is preferably a compound that does not contain an azine ring structure in the molecule.

[0159] In the organic EL device according to this embodiment, the second dopant material is preferably not a boron-containing complex, and more preferably is not a complex.

[0160] In the organic EL device according to this embodiment, it is preferable that the second light-emitting layer does not contain a metal complex. It is also preferable that the second light-emitting layer does not contain a boron-containing complex.

[0161] In the organic EL device according to this embodiment, the second light-emitting layer preferably does not contain a phosphorescent material (dopant material). The second light-emitting layer preferably does not contain a heavy metal complex or a phosphorescent rare earth metal complex, for example, an iridium complex, an osmium complex, or a platinum complex.

[0162] In this embodiment, the second emitting layer contains, for example, 50% by mass or more of the second host material based on the total mass of the second emitting layer. In addition, in this embodiment, the second host material is, for example, 60% by mass or more of the total mass of the second emitting layer, 70% by mass or more of the total mass of the second emitting layer, 80% by mass or more of the total mass of the second emitting layer, 90% by mass or more of the total mass of the second emitting layer, or 95% by mass or more of the total mass of the second emitting layer. In addition, for example, the second host material is contained in an amount of 99.5% by mass or less of the total mass of the second emitting layer, or 99% by mass or less of the total mass of the second emitting layer. In this embodiment, the upper limit of the total amount of the second host material and the second dopant material is 100% by mass of the total mass of the second emitting layer.

[0163] In the organic EL device according to this embodiment, the second light-emitting layer preferably contains the second dopant material in an amount of 0.5 mass % or more of the total mass of the second light-emitting layer, more preferably 1 mass % or more of the total mass of the second light-emitting layer, more preferably more than 1.1 mass % of the total mass of the second light-emitting layer, more preferably 1.2 mass % or more of the total mass of the second light-emitting layer, and even more preferably 1.5 mass % or more of the total mass of the second light-emitting layer. The second light-emitting layer preferably contains the second dopant material in an amount of 10 mass % or less of the total mass of the second light-emitting layer, more preferably 7 mass % or less of the total mass of the second light-emitting layer, and even more preferably 5 mass % or less of the total mass of the second light-emitting layer.

[0164] In addition, the present embodiment does not exclude the case where the second emitting layer contains a material other than the second host material and the second dopant material. The second light-emitting layer may contain only one type of second host material or two or more types of second dopant materials.

[0165] In the organic EL device according to this embodiment, the thickness of the second emitting layer is preferably 5 nm or more, more preferably 10 nm or more, and even more preferably 15 nm or more. If the thickness of the second emitting layer is 5 nm or more, it is easy to prevent triplet excitons that have moved from the first emitting layer to the second emitting layer from returning to the first emitting layer. In addition, if the thickness of the second emitting layer is 5 nm or more, triplet excitons can be sufficiently separated from the recombination portion in the first emitting layer. In the organic EL device according to this embodiment, the thickness of the second light-emitting layer is preferably 25 nm or less, more preferably 20 nm or less. If the thickness of the second light-emitting layer is 25 nm or less (more preferably 20 nm or less), the density of triplet excitons in the second light-emitting layer can be improved, making the TTF phenomenon more likely to occur. In the organic EL element according to this embodiment, the thickness of the second light-emitting layer is preferably 5 nm or more and 25 nm or less, and more preferably 5 nm or more and 20 nm or less.

[0166] (Other layers of organic electroluminescence devices) The organic EL device according to this embodiment may have one or more organic layers in addition to the first and second light-emitting layers, such as at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, a light-emitting layer, an electron injection layer, an electron transport layer, a hole blocking layer, and an electron blocking layer.

[0167] The organic EL device according to this embodiment may be composed of only the first light-emitting layer and the second light-emitting layer, or may further include at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, a hole blocking layer, an electron blocking layer, and the like.

[0168] (Hole transport layer) In the organic EL device according to this embodiment, it is preferable to include a hole transport layer between the anode and the light-emitting layer arranged on the anode side of the first light-emitting layer and the second light-emitting layer. In the organic EL device according to this embodiment, when the first light-emitting layer is disposed closer to the anode than the second light-emitting layer, it is preferable to include a hole transport layer between the anode and the first light-emitting layer. In the organic EL device according to this embodiment, when the second light-emitting layer is disposed closer to the anode than the first light-emitting layer, it is preferable to include a hole transport layer between the anode and the second light-emitting layer.

[0169] (electron transport layer) In the organic EL device according to this embodiment, it is preferable that an electron transport layer is included between the cathode and the light-emitting layer disposed on the cathode side of the first light-emitting layer and the second light-emitting layer. In the organic EL device according to this embodiment, when the second light-emitting layer is disposed closer to the cathode than the first light-emitting layer, it is preferable to include an electron transport layer between the second light-emitting layer and the cathode. In the organic EL device according to this embodiment, when the first light-emitting layer is disposed closer to the cathode than the second light-emitting layer, it is preferable to include an electron transport layer between the first light-emitting layer and the cathode.

[0170] FIG. 1 shows a schematic configuration of one example of the organic EL element according to this embodiment. The organic EL element 1 includes a light-transmitting substrate 2, an anode 3, a cathode 4, and an organic layer 10 disposed between the anode 3 and the cathode 4. The organic layer 10 is configured by laminating a hole injection layer 6, a hole transport layer 7, a first light-emitting layer 51, a second light-emitting layer 52, an electron transport layer 8, and an electron injection layer 9 in this order from the anode 3 side. The present invention is not limited to the configuration of the organic EL element shown in Fig. 1. Examples of organic EL elements with different configurations include an embodiment in which the organic layers are stacked in this order from the anode side, including a hole injection layer, a hole transport layer, a second light-emitting layer, a first light-emitting layer, an electron transport layer, and an electron injection layer.

[0171] In the organic EL element according to this embodiment, it is preferable that the first light-emitting layer and the second light-emitting layer are in direct contact with each other.

[0172] In this specification, the layer structure in which "the first emitting layer and the second emitting layer are in direct contact with each other" can include, for example, any of the following embodiments (LS1), (LS2), and (LS3). (LS1) An embodiment in which a region in which both the first host material and the second host material are mixed is generated during the process of vapor-depositing a compound for the first emitting layer and the process of vapor-depositing a compound for the second emitting layer, and this region is present at the interface between the first emitting layer and the second emitting layer. (LS2) When the first emitting layer and the second emitting layer contain a light-emitting compound, a region in which the first host material, the second host material, and the light-emitting compound are mixed is generated during the process of vapor-depositing the compound for the first emitting layer and the process of vapor-depositing the compound for the second emitting layer, and this region is present at the interface between the first emitting layer and the second emitting layer. (LS3) When the first emitting layer and the second emitting layer contain a light emitting compound, a region made of the light emitting compound, a region made of the first host material, or a region made of the second host material is generated during the process of vapor deposition of the compound for the first emitting layer and the process of vapor deposition of the compound for the second emitting layer, and the region is present at the interface between the first emitting layer and the second emitting layer.

[0173] The structure of the organic EL element will be further described below. In the following, reference numerals may be omitted.

[0174] (substrate) The substrate is used as a support for the organic EL element. For example, glass, quartz, plastic, etc. can be used as the substrate. A flexible substrate may also be used. A flexible substrate is a substrate that can be bent (flexible), and examples thereof include a plastic substrate. Examples of materials for forming the plastic substrate include polycarbonate, polyarylate, polyethersulfone, polypropylene, polyester, polyvinyl fluoride, polyvinyl chloride, polyimide, and polyethylene naphthalate. An inorganic deposition film can also be used.

[0175] (anode) For the anode formed on the substrate, it is preferable to use a metal, alloy, electrically conductive compound, or a mixture thereof having a large work function (specifically, 4.0 eV or more). Specific examples include indium oxide-tin oxide (ITO), indium oxide-tin oxide containing silicon or silicon oxide, indium oxide-zinc oxide, tungsten oxide, indium oxide containing zinc oxide, graphene, and the like. Other examples include gold (Au), platinum (Pt), nickel (Ni), tungsten (W), chromium (Cr), molybdenum (Mo), iron (Fe), cobalt (Co), copper (Cu), palladium (Pd), titanium (Ti), or nitrides of metal materials (e.g., titanium nitride), and the like.

[0176] These materials are usually formed into a film by a sputtering method. For example, indium oxide-zinc oxide can be formed by a sputtering method by using a target in which zinc oxide is added to indium oxide at 1 mass % or more and 10 mass % or less. In addition, indium oxide containing tungsten oxide and zinc oxide can be formed by a sputtering method by using a target in which tungsten oxide is added to indium oxide at 0.5 mass % or more and 5 mass % or less and zinc oxide is added to indium oxide at 0.1 mass % or more and 1 mass % or less. In addition, it may be formed by a vacuum deposition method, a coating method, an inkjet method, a spin coating method, or the like.

[0177] Of the EL layers formed on the anode, the hole injection layer formed in contact with the anode is formed using a composite material that easily injects holes regardless of the work function of the anode, so that materials that can be used as electrode materials (for example, metals, alloys, electrically conductive compounds, and mixtures of these, as well as other elements belonging to Group 1 or Group 2 of the periodic table) can be used.

[0178] Materials with small work functions, such as elements belonging to Group 1 or 2 of the periodic table, i.e., alkali metals such as lithium (Li) and cesium (Cs), alkaline earth metals such as magnesium (Mg), calcium (Ca), and strontium (Sr), and alloys containing these (e.g., MgAg, AlLi), rare earth metals such as europium (Eu), ytterbium (Yb), and alloys containing these, can also be used. When alkali metals, alkaline earth metals, and alloys containing these are used to form the anode, vacuum deposition and sputtering methods can be used. Furthermore, when silver paste or the like is used, coating and inkjet methods can be used.

[0179] (cathode) For the cathode, it is preferable to use a metal, alloy, electrically conductive compound, or a mixture thereof, each having a small work function (specifically, 3.8 eV or less). Specific examples of such a cathode material include elements belonging to Group 1 or 2 of the periodic table, i.e., alkali metals such as lithium (Li) and cesium (Cs), alkaline earth metals such as magnesium (Mg), calcium (Ca), and strontium (Sr), and alloys containing these (e.g., MgAg, AlLi), rare earth metals such as europium (Eu), ytterbium (Yb), and alloys containing these.

[0180] When an alkali metal, an alkaline earth metal, or an alloy containing these is used to form a cathode, a vacuum deposition method or a sputtering method can be used. When a silver paste or the like is used, a coating method or an inkjet method can be used.

[0181] By providing an electron injection layer, the cathode can be formed using various conductive materials, such as Al, Ag, ITO, graphene, indium oxide-tin oxide containing silicon or silicon oxide, regardless of the magnitude of the work function. These conductive materials can be formed into films by a sputtering method, an inkjet method, a spin coating method, or the like.

[0182] (Hole injection layer) The hole injection layer is a layer containing a substance with high hole injection properties, such as molybdenum oxide, titanium oxide, vanadium oxide, rhenium oxide, ruthenium oxide, chromium oxide, zirconium oxide, hafnium oxide, tantalum oxide, silver oxide, tungsten oxide, manganese oxide, etc.

[0183] In addition, examples of materials with high hole injection properties include low-molecular-weight organic compounds such as 4,4',4''-tris(N,N-diphenylamino)triphenylamine (abbreviation: TDATA), 4,4',4''-tris[N-(3-methylphenyl)-N-phenylamino]triphenylamine (abbreviation: MTDATA), 4,4'-bis[N-(4-diphenylaminophenyl)-N-phenylamino]biphenyl (abbreviation: DPAB), 4,4'-bis(N-{4-[N'-(3-methylphenyl)-N'-phenylamino]phenyl}-N-phenylamino)biphenyl (abbreviation: DNTPD), and 1,3,5-tris[N-(4-diphenylaminophenyl)-N-phenylamino]biphenyl (abbreviation: DNTPD). [N-phenylamino]benzene (abbreviation: DPA3B), 3-[N-(9-phenylcarbazol-3-yl)-N-phenylamino]-9-phenylcarbazole (abbreviation: PCzPCA1), 3,6-bis[N-(9-phenylcarbazol-3-yl)-N-phenylamino]-9-phenylcarbazole (abbreviation: PCzPCA2), 3-[N-(1-naphthyl)-N-(9-phenylcarbazol-3-yl)amino]-9-phenylcarbazole (abbreviation: PCzPCN1), and other aromatic amine compounds, as well as dipyrazino[2,3-f:20,30-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile (HAT-CN) are also included.

[0184] In addition, as a substance with high hole injection properties, a polymer compound (oligomer, dendrimer, polymer, etc.) can be used. For example, polymer compounds such as poly(N-vinylcarbazole) (abbreviation: PVK), poly(4-vinyltriphenylamine) (abbreviation: PVTPA), poly[N-(4-{N'-[4-(4-diphenylamino)phenyl]phenyl-N'-phenylamino}phenyl)methacrylamide] (abbreviation: PTPDMA), poly[N,N'-bis(4-butylphenyl)-N,N'-bis(phenyl)benzidine] (abbreviation: Poly-TPD) can be used. In addition, a polymer compound to which an acid is added, such as poly(3,4-ethylenedioxythiophene) / poly(styrenesulfonic acid) (PEDOT / PSS) or polyaniline / poly(styrenesulfonic acid) (PAni / PSS) can be used.

[0185] (Hole transport layer) The hole transport layer is a layer containing a substance with high hole transport properties. For the hole transport layer, an aromatic amine compound, a carbazole derivative, an anthracene derivative, or the like can be used. Specifically, 4,4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (abbreviation: NPB), N,N'-bis(3-methylphenyl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine (abbreviation: TPD), 4-phenyl-4'-(9-phenylfluoren-9-yl)triphenylamine (abbreviation: BAFLP), 4,4'-bis[N-(9,9-dimethylfluoren-2-yl)-N-phenylamino]biphenyl (abbreviation: NPB), Examples of aromatic amine compounds that can be used include 4,4',4''-tris(N,N-diphenylamino)triphenylamine (abbreviation: TDATA), 4,4',4''-tris[N-(3-methylphenyl)-N-phenylamino]triphenylamine (abbreviation: MTDATA), and 4,4'-bis[N-(spiro-9,9'-bifluoren-2-yl)-N-phenylamino]biphenyl (abbreviation: BSPB). The substances mentioned here are mainly 10 -6 cm 2 / (V s) or higher.

[0186] The hole transport layer may be made of carbazole derivatives such as CBP, 9-[4-(N-carbazolyl)]phenyl-10-phenylanthracene (CzPA), and 9-phenyl-3-[4-(10-phenyl-9-anthryl)phenyl]-9H-carbazole (PCzPA), or anthracene derivatives such as t-BuDNA, DNA, and DPAnth. Polymer compounds such as poly(N-vinylcarbazole) (abbreviation: PVK) and poly(4-vinyltriphenylamine) (abbreviation: PVTPA) may also be used.

[0187] However, other substances may be used as long as they have a higher hole transporting property than an electron transporting property. Note that the layer containing the substance having a high hole transporting property may be a single layer or a stack of two or more layers made of the above substances.

[0188] (electron transport layer) The electron transport layer is a layer containing a substance with high electron transport properties. For the electron transport layer, 1) metal complexes such as aluminum complexes, beryllium complexes, and zinc complexes, 2) heteroaromatic compounds such as imidazole derivatives, benzimidazole derivatives, azine derivatives, carbazole derivatives, and phenanthroline derivatives, and 3) polymer compounds can be used. Specifically, metal complexes such as Alq, tris(4-methyl-8-quinolinolato)aluminum (abbreviation: Almq3), bis(10-hydroxybenzo[h]quinolinato)beryllium (abbreviation: BeBq2), BAlq, Znq, ZnPBO, and ZnBTZ can be used as low molecular weight organic compounds. In addition to metal complexes, 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (abbreviation: PBD), 1,3-bis[5-(pt-butylphenyl)-1,3,4-oxadiazol-2-yl]benzene (abbreviation: OXD-7), 3-(4-tert-butylphenyl)-4-phenyl-5-(4-biphenylyl)-1,2,4-triazole (abbreviation: Heteroaromatic compounds such as 3-(4-tert-butylphenyl)-4-(4-ethylphenyl)-5-(4-biphenylyl)-1,2,4-triazole (abbreviation: p-EtTAZ), bathophenanthroline (abbreviation: BPhen), bathocuproine (abbreviation: BCP), and 4,4'-bis(5-methylbenzoxazol-2-yl)stilbene (abbreviation: BzOs) can also be used. In this embodiment, benzimidazole compounds can be preferably used. The substances mentioned here are mainly 10 -6 cm 2 / (V·s) or more. Note that any other substance may be used as the electron transport layer as long as it has a higher electron transporting property than a hole transporting property. The electron transport layer may be formed of a single layer or may be formed of two or more layers of the above substances.

[0189] The electron transport layer can also be made of a polymer compound, such as poly[(9,9-dihexylfluorene-2,7-diyl)-co-(pyridine-3,5-diyl)] (abbreviation: PF-Py) or poly[(9,9-dioctylfluorene-2,7-diyl)-co-(2,2'-bipyridine-6,6'-diyl)] (abbreviation: PF-BPy).

[0190] (electron injection layer) The electron injection layer is a layer containing a substance with high electron injection properties. For the electron injection layer, alkali metals, alkaline earth metals, such as lithium (Li), cesium (Cs), calcium (Ca), lithium fluoride (LiF), cesium fluoride (CsF), calcium fluoride (CaF2), lithium oxide (LiOx), or compounds thereof can be used. In addition, a substance having electron transport properties containing an alkali metal, an alkaline earth metal, or a compound thereof, specifically, magnesium (Mg) in Alq, may be used. In this case, electron injection from the cathode can be performed more efficiently.

[0191] Alternatively, a composite material obtained by mixing an organic compound and an electron donor (donor) may be used for the electron injection layer. Such a composite material has excellent electron injection and electron transport properties because electrons are generated in the organic compound by the electron donor. In this case, the organic compound is preferably a material that is excellent in transporting the generated electrons, and specifically, for example, the above-mentioned substances constituting the electron transport layer (metal complexes, heteroaromatic compounds, etc.) can be used. The electron donor may be any substance that exhibits electron donating properties to the organic compound. Specifically, alkali metals, alkaline earth metals, and rare earth metals are preferred, and examples thereof include lithium, cesium, magnesium, calcium, erbium, and ytterbium. Furthermore, alkali metal oxides and alkaline earth metal oxides are preferred, and examples thereof include lithium oxide, calcium oxide, and barium oxide. Furthermore, a Lewis base such as magnesium oxide can also be used. Furthermore, an organic compound such as tetrathiafulvalene (abbreviation: TTF) can also be used.

[0192] (Layer formation method) The method for forming each layer of the organic EL element of this embodiment is not limited to those specifically mentioned above, but may be any known method, such as a dry film formation method, such as a vacuum deposition method, a sputtering method, a plasma method, or an ion plating method, or a wet film formation method, such as a spin coating method, a dipping method, a flow coating method, or an inkjet method.

[0193] (Film thickness) The thickness of each organic layer of the organic EL element of the present embodiment is not limited unless otherwise specified above. In general, if the thickness is too thin, defects such as pinholes are likely to occur, and if the thickness is too thick, a high applied voltage is required, resulting in poor efficiency. Therefore, the thickness of each organic layer of the organic EL element is usually preferably in the range of several nm to 1 μm.

[0194] (First Host Material) In the organic EL device according to this embodiment, the first host material is preferably a compound having no anthracene ring.

[0195] In the organic EL device according to this embodiment, the first host material is preferably a compound having a molecular weight of 2000 or less.

[0196] When the first host material has a highly planar skeleton (e.g., a skeleton of pyrene or fluoranthene), it is considered that a decrease in chromaticity is likely to occur. Therefore, when a first host material having such a skeleton is used, it is more preferable to form an emission layer in combination with a first organic material.

[0197] In the organic EL device according to this embodiment, the first host material is preferably a first compound represented by, for example, the following general formula (1), general formula (11X), general formula (12X), general formula (13X), or general formula (14X).

[0198] (Compound represented by general formula (1)) In the organic EL device according to this embodiment, the first host material is also preferably a compound represented by general formula (1).

[0199] [ka]

[0200] (In the general formula (1), R 101 ~R 110 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (11), However, R 101 ~R 110 At least one of the above is a group represented by general formula (11), When a plurality of groups represented by the general formula (11) are present, the plurality of groups represented by the general formula (11) are the same or different from each other, L 101 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 101 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx is 0, 1, 2, 3, 4 or 5; L 101 If there are two or more, there are two or more L 101 are identical or different from each other, Ar 101 If there are two or more, there are two or more Ar 101 are identical or different from each other, In the general formula (11), * indicates the bonding position to the pyrene ring in the general formula (1).

[0201] In the organic EL device according to this embodiment, the group represented by the general formula (11) is preferably a group represented by the following general formula (111).

[0202] [ka]

[0203] (In the general formula (111), X1 is a CR 123 R 124 , oxygen atom, sulfur atom, or NR 125 and L 111 and L 112 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, ma is 0, 1, 2, 3 or 4; mb is 0, 1, 2, 3 or 4; ma+mb is 0, 1, 2, 3 or 4; Ar 101 is Ar in the general formula (11). 101 is synonymous with R 121 , R 122 , R 123 , R 124 and R 125 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mc is 3, The Three R's 121 are identical or different from each other, md is 3, The Three R's 122 are either identical or different.)

[0204] In the group represented by the general formula (111), L is located at any one of positions *1 to *4 among positions *1 to *8 of carbon atoms in the ring structure represented by the following general formula (111a): 111 is bonded, and R is placed in the remaining three positions of *1 to *4. 121 is bonded, and L is placed at any one of positions *5 to *8. 112 is bonded, and R is placed in the remaining three positions from *5 to *8. 122 are combined.

[0205] [ka]

[0206] For example, in the group represented by the general formula (111), L 111 is bonded to the carbon atom marked with *2 in the ring structure represented by the general formula (111a), and L 112 is bonded to the position of the carbon atom marked *7 in the ring structure represented by general formula (111a), the group represented by general formula (111) is represented by the following general formula (111b).

[0207] [ka]

[0208] (In the general formula (111b), X1, L 111 , L 112 , ma, mb, Ar 101 , R 121 , R 122 , R 123 , R 124 and R 125 each independently represents X1, L in the general formula (111). 111 , L 112 , ma, mb, Ar 101 , R 121 , R 122 , R 123 , R124 and R 125 is synonymous with Multiple R 121 are identical or different from each other, Multiple R 122 are either identical or different.)

[0209] In the organic EL device according to this embodiment, the group represented by the general formula (111) is preferably a group represented by the general formula (111b).

[0210] In the organic EL element according to this embodiment, ma is 0, 1 or 2; It is preferred that mb is 0, 1 or 2.

[0211] In the organic EL element according to this embodiment, ma is 0 or 1; It is preferred that mb is 0 or 1.

[0212] In the organic EL element according to this embodiment, Ar 101 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0213] In the organic EL element according to this embodiment, Ar 101 teeth, a substituted or unsubstituted phenyl group; a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group; a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted phenanthryl group, or A substituted or unsubstituted fluorenyl group is preferred.

[0214] In the organic EL element according to this embodiment, Ar 101is also preferably a group represented by the following general formula (12), general formula (13) or general formula (14).

[0215] [ka]

[0216] (In the general formula (12), general formula (13) and general formula (14), R 111 ~R 120 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 124 A group represented by -COOR 125 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, In the general formula (12), the general formula (13), and the general formula (14), * represents L in the general formula (11). 101or the bonding position of L in the general formula (111) or the general formula (111b). 112 The bond position is shown.)

[0217] In the organic EL device according to this embodiment, the first compound is preferably represented by the following general formula (101).

[0218] [ka]

[0219] (In the general formula (101), R 101 ~R 120 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, However, R 101~R 110 One of them is L 101 indicates the bond position with R 111 ~R 120 One of them is L 101 indicates the bonding position with L 101 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, mx is 0, 1, 2, 3, 4 or 5; L 101 If there are two or more, there are two or more L 101 are either identical or different.)

[0220] In the organic EL element according to this embodiment, L 101 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0221] In the organic EL device according to this embodiment, the first compound is preferably represented by the following general formula (102).

[0222] [ka]

[0223] (In the general formula (102), R 101 ~R 120 each independently represents R in the general formula (101). 101 ~R 120 is synonymous with However, R 101 ~R 110 One of them is L 111 indicates the bond position with R 111 ~R 120 One of them is L 112 indicates the bonding position with X1 is a CR 123 R 124, oxygen atom, sulfur atom, or NR 125 and L 111 and L 112 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, ma is 0, 1, 2, 3 or 4; mb is 0, 1, 2, 3 or 4; ma+mb is 0, 1, 2, 3 or 4; R 121 , R 122 , R 123 , R 124 and R 125 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mc is 3, The Three R's 121 are identical or different from each other, md is 3, The Three R's 122 are either identical or different.)

[0224] In the compound represented by the general formula (102), ma is 0, 1 or 2; It is preferred that mb is 0, 1 or 2.

[0225] In the compound represented by the general formula (102), ma is 0 or 1; It is preferred that mb is 0 or 1.

[0226] In the organic EL element according to this embodiment, R 101 ~R 110 It is preferable that two or more of the above are groups represented by the general formula (11).

[0227] In the organic EL element according to this embodiment, R 101 ~R 110 At least two of the groups represented by the general formula (11) are Ar 101 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0228] In the organic EL element according to this embodiment, Ar 101 is not a substituted or unsubstituted pyrenyl group, L 101 is not a substituted or unsubstituted pyrenylene group, R which is not a group represented by the general formula (11) 101 ~R 110 The substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms as represented by is preferably not a substituted or unsubstituted pyrenyl group.

[0229] In the organic EL element according to this embodiment, R which is not a group represented by the general formula (11) 101 ~R 110 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0230] In the organic EL element according to this embodiment, R which is not a group represented by the general formula (11) 101 ~R 110 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or A substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms is preferred.

[0231] In the organic EL device according to this embodiment, the compound represented by the general formula (1) does not have, for example, a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms.

[0232] In the organic EL device according to this embodiment, R 101 ~R 110 is preferably a hydrogen atom.

[0233] (Compound represented by general formula (11X)) In the organic EL device according to this embodiment, the first host material has at least one group represented by the following general formula (111X) and is also preferably a compound represented by the following general formula (11X).

[0234] [ka]

[0235] (In the general formula (11X), R 1101 ~R 1112 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (111X), However, R 1101 ~R 1112 At least one of the above is a group represented by general formula (111X), When a plurality of groups represented by the general formula (111X) are present, the plurality of groups represented by the general formula (111X) are the same or different from each other, L 1101 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 1101 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx1 is 1, 2, 3, 4 or 5; L 1101 If there are two or more, there are two or more L 1101 are identical or different from each other, Ar 1101 If there are two or more, there are two or more Ar 1101 are identical or different from each other, In the general formula (111X), * indicates the bonding position to the benz[a]anthracene ring in the general formula (11X).

[0236] In the compound represented by the general formula (11X), Ar 1101 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0237] In the compound represented by the general formula (11X), Ar 1101 teeth, a substituted or unsubstituted phenyl group; a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group; a substituted or unsubstituted benz[a]anthryl group; a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted phenanthryl group, or A substituted or unsubstituted fluorenyl group is preferred.

[0238] In the compound represented by the general formula (11X), L 1101is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0239] In the compound represented by the general formula (11X), R 1101 ~R 1112 It is also preferable that two or more of the above are groups represented by general formula (111X).

[0240] In the compound represented by the general formula (11X), R 1101 ~R 1112 are groups represented by the general formula (111X), and Ar 1101 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0241] In the compound represented by the general formula (11X), R 1111 and R 1112 is also preferably a group represented by the above general formula (111X). The compound represented by the general formula (11X) is also preferably represented by the following general formula (1101X).

[0242] [ka]

[0243] (In the above general formula (1101X), R 1101 ~R 1110 each independently represents R in the general formula (11X). 1101 ~R 1110 is synonymous with Ar 1141 and Ar 1142 each independently represents Ar in the general formula (111X). 1101 is synonymous with L 1141 and L 1142 each independently represents L in the general formula (111X). 1101 is equivalent to

[0244] In the compound represented by the general formula (11X), Ar 1101 is not a substituted or unsubstituted benz[a]anthryl group, L 1101 is not a substituted or unsubstituted benz[a]anthrylene group, R which is not a group represented by the general formula (11X) 1101 ~R 1110 It is also preferable that the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms as represented by the formula (I) is not a substituted or unsubstituted benz[a]anthryl group.

[0245] In the compound represented by the general formula (11X), R other than the group represented by the general formula (111X) 1101 ~R 1112 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0246] In the compound represented by the general formula (11X), R other than the group represented by the general formula (111X) 1101 ~R 1112 teeth, Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or A substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms is preferred.

[0247] In the compound represented by the general formula (11X), R other than the group represented by the general formula (111X) 1101 ~R 1112 is preferably a hydrogen atom.

[0248] (Compound represented by general formula (12X)) In the organic EL device according to this embodiment, the first host material has at least one group represented by the following general formula (121X) and is also preferably a compound represented by the following general formula (12X).

[0249] [ka]

[0250] (In the general formula (12X), R 1201 ~R 1210 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring; R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 1201 ~R 1210 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (121X), However, when the substituted or unsubstituted monocyclic ring has a substituent, the substituent when the substituted or unsubstituted condensed ring has a substituent, and R 1201 ~R 1210 At least one of the above is a group represented by general formula (121X), When a plurality of groups represented by the general formula (121X) are present, the plurality of groups represented by the general formula (121X) are the same or different from each other, L 1201 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 1201 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx2 is 1, 2, 3, 4 or 5; L 1201 If there are two or more, there are two or more L 1201 are identical or different from each other, Ar 1201 If there are two or more, there are two or more Ar 1201 are identical or different from each other, In the general formula (121X), * indicates the bonding position to the ring represented by the general formula (12X).

[0251] In the general formula (12X), R 1201 ~R 1210 A pair of adjacent pairs of R 1201 and R 1202 With R 1202 and R 1203With R 1203 and R 1204 With R 1204 and R 1205 With R 1205 and R 1206 With R 1207 and R 1208 With R 1208 and R 1209 and R 1209 and R 1210 It is paired with .

[0252] In the organic EL element according to this embodiment, R 1201 ~R 1210 The number of substituted or unsubstituted monocyclic rings and substituted or unsubstituted fused rings formed by bonding to one or more pairs of adjacent two or more of the above is preferably 1 or more and 5 or less, more preferably 1 or 2, and even more preferably 1.

[0253] In the organic EL element according to this embodiment, R 1201 ~R 1210 It is preferable that one or more pairs of adjacent two or more of the above are bonded to each other to form a substituted or unsubstituted monocycle, and the substituted or unsubstituted monocycle is preferably a substituted or unsubstituted 5-membered ring or a substituted or unsubstituted 6-membered ring, and more preferably a substituted or unsubstituted 6-membered ring.

[0254] In the organic EL device according to this embodiment, the first compound represented by the general formula (12X) has at least one group represented by the general formula (121X) and is preferably any of the compounds represented by the following general formulae (121) to (124).

[0255] [ka]

[0256] [ka]

[0257] (In the general formulae (121) to (124), R 1201 ~R 1214 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (121X), However, R 1201 ~R 1214 At least one of the above is a group represented by general formula (121X), When a plurality of groups represented by the general formula (121X) are present, the plurality of groups represented by the general formula (121X) are the same or different from each other, In the general formulae (121) to (124), R 901 , R 902 , R 903 , R904 , R 905 , R 906 , R 907 , R 801 and R 802 each independently has the same meaning as in general formula (12X).

[0258] In the organic EL element according to this embodiment, Ar 1201 is also preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0259] In the organic EL element according to this embodiment, Ar 1201 teeth, a substituted or unsubstituted phenyl group; a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group; a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted phenanthryl group, or A substituted or unsubstituted fluorenyl group is also preferred.

[0260] In the organic EL element according to this embodiment, mx2 is preferably 1 or 2.

[0261] In the organic EL element according to this embodiment, L 1201 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0262] In the organic EL element according to this embodiment, mx2 is 1 or 2, and L 1201 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0263] In the organic EL device according to this embodiment, R 1201 ~R 1210 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0264] In the organic EL device according to this embodiment, R 1201 ~R 1210 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or A substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms is preferred.

[0265] In the organic EL device according to this embodiment, R 1201 ~R 1210 is preferably a hydrogen atom or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0266] (Compound represented by general formula (13X)) In the organic EL device according to this embodiment, the first host material has at least one group represented by the following general formula (131X) and is also preferably a compound represented by the following general formula (13X).

[0267] [ka]

[0268] (In the general formula (13X), R 1301 ~R 1310 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (131X), However, R 1301 ~R 1310 At least one of the above is a group represented by general formula (131X), When a plurality of groups represented by the general formula (131X) are present, the plurality of groups represented by the general formula (131X) are the same or different from each other, L 1301 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 1301 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx3 is 1, 2, 3, 4 or 5; L 1301 If there are two or more, there are two or more L 1301 are identical or different from each other, Ar 1301 If there are two or more, there are two or more Ar 1301 are identical or different from each other, In the general formula (131X), * indicates the bonding position to the fluoranthene ring in the general formula (13X).

[0269] In the organic EL device according to this embodiment, R 1301 ~R 1310 In the general formula (13X), the pair of adjacent two or more of R 1301 and R 1302 With R 1302 and R 1303 With R 1303 and R 1304 With R 1304 and R 1305 With R 1305 and R 1306 With R 1307 and R 1308 With R 1308 and R 1309 and R 1309 and R 1310 It is paired with .

[0270] In the organic EL element according to this embodiment, Ar 1301 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0271] In the organic EL element according to this embodiment, Ar 1301 teeth, a substituted or unsubstituted phenyl group; a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group; a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted phenanthryl group, or A substituted or unsubstituted fluorenyl group is preferred.

[0272] In the organic EL element according to this embodiment, Ar 1301 The substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms as represented by is preferably not a substituted or unsubstituted anthryl group.

[0273] In the organic EL element according to this embodiment, L 1301 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0274] In the organic EL device according to this embodiment, R 1301 ~R 1310 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0275] In the organic EL device according to this embodiment, R 1301 ~R 1310 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or A substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms is preferred.

[0276] In the organic EL device according to this embodiment, R 1301~R 1310 is preferably a hydrogen atom.

[0277] In the organic EL element according to this embodiment, mx3 is preferably 1 or 2. In the organic EL element according to this embodiment, mx3 is 1 or 2, and L 1301 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0278] (Compound represented by general formula (14X)) In the organic EL device according to this embodiment, the first host material has at least one group represented by the following general formula (141X) and is also preferably a compound represented by the following general formula (14X).

[0279] [ka]

[0280] (In the general formula (14X), R 1401 ~R 1410 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (141X), However, R 1401 ~R 1410 At least one of the above is a group represented by general formula (141X), When a plurality of groups represented by the general formula (141X) are present, the plurality of groups represented by the general formula (141X) are the same or different from each other, L 1401 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 1401 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx4 is 1, 2, 3, 4 or 5; L 1401 If there are two or more, there are two or more L 1401 are identical or different from each other, Ar 1401 If there are two or more, there are two or more Ar 1401 are identical or different from each other, In the general formula (141X), * indicates the bonding position to the ring represented by the general formula (14X).

[0281] In the organic EL element according to this embodiment, Ar 1401 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0282] In the organic EL element according to this embodiment, R 1401 ~R 1410 It is also preferable that two or more of the above are groups represented by general formula (141X).

[0283] In the organic EL element according to this embodiment, R 1401 ~R 1410 At least two of the above are groups represented by general formula (141X), and Ar 1401 is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0284] In the organic EL element according to this embodiment, mx4 is preferably 1 or 2.

[0285] In the organic EL element according to this embodiment, L 1401 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms. In the organic EL element according to this embodiment, mx4 is 1 or 2, and L 1401 is preferably a single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms.

[0286] In the organic EL device according to this embodiment, R 1401 ~R 1410 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0287] In the organic EL device according to this embodiment, R 1401 ~R1410 is preferably a hydrogen atom.

[0288] In the first host material of the organic EL device according to this embodiment, R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 801 and R 802 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 901 If there are multiple R 901 are the same or different from each other, R 902 If there are multiple R 902 are the same or different from each other, R 903 If there are multiple R 903 are the same or different from each other, R 904 If there are multiple R 904 are the same or different from each other, R 905 If there are multiple R 905 are the same or different from each other, R 906 If there are multiple R 906 are the same or different from each other, R 907 If there are multiple R 907 are the same or different from each other, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other.

[0289] In the first host material according to this embodiment, all of the groups described as "substituted or unsubstituted" are preferably "unsubstituted".

[0290] (Method for Producing First Host Material) The first host material can be produced by a known method. The first host material can also be produced by following a known method and using known alternative reactions and raw materials suited to the target product.

[0291] (Specific Example of First Host Material) Specific examples of the first host material include the following compounds, however, the present invention is not limited to these specific examples of the first host material.

[0292] [ka]

[0293] (First organic material) In the organic EL device according to this embodiment, the first organic material is preferably a compound that does not have an anthracene ring.

[0294] In the organic EL device according to this embodiment, the first organic material is preferably a compound having a molecular weight of 2000 or less.

[0295] In the organic EL element according to this embodiment, the first organic material is also preferably a second compound represented by, for example, the following general formula (21), general formula (22), general formula (23), general formula (24), general formula (25), general formula (26), general formula (27), or general formula (28).

[0296] (Compound represented by general formula (21)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (21).

[0297] [ka]

[0298] (In the general formula (21), L A1 , L B1 , and L C1 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 13 ring atoms, A1, B1, and C1 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, or -Si(R 921 )(R 922 )(R 923 ) is a group represented by R 921 , R 922 and R 923 each independently represents a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, R 921 If there are multiple R 921 are identical or different from each other, R 922 If there are multiple R 922 are identical or different from each other, R 923 If there are multiple R 923 are either identical or different.)

[0299] The compound represented by the general formula (21) is preferably a compound represented by the following general formula (212).

[0300] [ka]

[0301] (In the general formula (212), L C1 , A1, B1 and C1 are as defined in the general formula (21), n1 and n2 each independently represent 0, 1, 2, 3, or 4; When a plurality of R's are present, the plurality of R's are the same or different, When a plurality of R's are present, one or more pairs of adjacent two or more R's are joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R which does not form a substituted or unsubstituted monocycle and does not form a substituted or unsubstituted fused ring is Cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ), -O-(R 904 ), a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0302] In the compound represented by the general formula (21), at least one of A1, B1, and C1 is preferably a group selected from the group consisting of groups represented by the following general formulae (21a), (21b), (21c), (21d), and (21e).

[0303] [ka]

[0304] (In the general formula (21a), general formula (21b), general formula (21c), general formula (21d) and general formula (21e), X 21 is NR 21 , C.R. 22 R 23 , an oxygen atom or a sulfur atom; X 21 If there are multiple X 21 are identical or different from each other, X 21 CR 22 R 23 If R 22 and R 23 The set consisting of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R 21 and R which does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 22 and R 23 are each independently Hydrogen atom, Cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted halogenated alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 211 ~R 218Among the groups of two or more adjacent joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or or not bonded to each other R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 211 ~R 218 are each independently Hydrogen atom, Cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted halogenated alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, In the general formula (21a), general formula (21b), general formula (21c), general formula (21d) and general formula (21e), * each independently represents L A1 , L B1 , or L C1 )

[0305] It is preferable that A1, B1, and C1, which are not a group selected from the group consisting of groups represented by the general formula (21a), general formula (21b), general formula (21c), general formula (21d), and general formula (21e), are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

[0306] When the first light-emitting layer contains the compound represented by the general formula (21) as the first organic material, the hole transport property of the first light-emitting layer can be improved. The compound represented by the general formula (21) has a skeleton with less planarity than a pyrene compound, and therefore, the decrease in chromaticity can be easily suppressed.

[0307] (Compound represented by general formula (22)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (22).

[0308] [ka]

[0309] (In the general formula (22), A 21 and A 22 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, One of Y5 to Y8 is a carbon atom bonded to *1, Y9~Y 12 One of the carbon atoms is bonded to *2. Y1~Y4, Y 13 ~Y 16 Y5 to Y8 are not carbon atoms bonded to *1, and Y9 to Y are not carbon atoms bonded to *2. 12 are each independently 20 and R 20 If there are multiple R 20 one or more pairs of adjacent two or more of R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 20 are each independently Hydrogen atom, Cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by Halogen atoms, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L 21 and L 22 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or It is a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms.

[0310] For example, Y6 is a carbon atom bonded to *1, and Y 11 is a carbon atom bonded to *2, the general formula (22) is represented by the following general formula (221). The compound represented by the general formula (22) is also preferably a compound represented by the following general formula (221).

[0311] [ka]

[0312] (In the general formula (221), Y1~Y5, Y7~Y 10 , and Y 12 ~Y 16 CR 20 and A21 , A 22 , L 21 , L 22 , and R 20 respectively represent A in the general formula (22). 21 , A 22 , L 21 , L 22 , and R 20 Synonymous with R 20 are either identical or different.)

[0313] In the compound represented by the general formula (22), A 21 and A 22 are preferably each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.

[0314] In the compound represented by the general formula (22), A 21 and A 22 is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, 21 and A 22 The other of the above is preferably a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted naphthyl group, a naphthylphenyl group, a substituted or unsubstituted triphenylenyl group, or a 9,9-biphenylfluorenyl group.

[0315] In the compound represented by the general formula (22), A 21 and A 22 is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, 21 and A 22 The other of the above is preferably a substituted or unsubstituted phenyl group, a substituted or unsubstituted p-biphenyl group, a substituted or unsubstituted m-biphenyl group, a substituted or unsubstituted o-biphenyl group, a substituted or unsubstituted 3-naphthylphenyl group, a triphenylenyl group, or a 9,9-biphenylfluorenyl group.

[0316] In the compound represented by the general formula (22), L21 and L 22 are preferably each independently a single bond, or a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms.

[0317] When the first light-emitting layer contains the compound represented by the general formula (22) as the first organic material, the hole transport property of the first light-emitting layer can be improved. In addition, the electron resistance of the compound represented by the general formula (22) is superior to that of an amine compound. The compound represented by the general formula (22) has a skeleton with less planarity than a pyrene compound, and therefore, it is easier to suppress a decrease in chromaticity.

[0318] (Compound represented by general formula (23)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (23).

[0319] [ka]

[0320] (In the general formula (23), R 2301 ~R 2310 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (231), When a plurality of groups represented by the general formula (231) are present, the plurality of groups represented by the general formula (231) are the same or different from each other, L 231 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 231 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, m23 is 1, 2, 3, 4 or 5; L 231 If there are two or more, there are two or more L 231 are identical or different from each other, Ar 231 If there are two or more, there are two or more Ar 231 are identical or different from each other, When the compound represented by the general formula (231) contains a plurality of pyrene rings in its molecule, at least one of the plurality of pyrene rings has a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms, In the general formula (231), * indicates the bonding position with the pyrene ring in the general formula (23).

[0321] The compound represented by the general formula (23) is also preferably a compound having a plurality of pyrene rings in the molecule. When the compound represented by the general formula (23) has a plurality of pyrene rings in the molecule, it is preferable that each of the plurality of pyrene rings independently has a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms. The number of the substituted or unsubstituted alkyl group having 3 to 50 carbon atoms in each pyrene ring is one or more, and the plurality of substituted or unsubstituted alkyl groups having 3 to 50 carbon atoms are the same or different from each other.

[0322] In the compound represented by the general formula (23), Ar 231 is not a substituted or unsubstituted pyrenyl group, L 231 is not a substituted or unsubstituted pyrenylene group and is not a group represented by the general formula (231). 2301 ~R 2310 It is also preferable that the substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms as represented by the formula (I) is not a substituted or unsubstituted pyrenyl group.

[0323] The compound represented by the general formula (23) is also preferably a compound having only one pyrene ring in the molecule.

[0324] In the compound represented by the general formula (23), R 2301 and R 2306 are each independently a group represented by general formula (231).

[0325] In the organic EL element according to this embodiment, R which is not a group represented by the general formula (231) 2301 ~R 2310 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0326] In the organic EL element according to this embodiment, R which is not a group represented by the general formula (231) 2301 ~R 2310 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or A substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms is preferred.

[0327] When the first light-emitting layer contains the compound represented by the general formula (23) as the first organic material, it is possible to prevent holes from being excessively injected into the first light-emitting layer, which would cause holes and electrons to recombine in the second light-emitting layer. In addition, the electron resistance and excitation resistance of the compound represented by the general formula (23) are superior to those of a biscarbazole compound. The compound represented by the general formula (23) has a skeleton with less planarity than a pyrene compound, and therefore is more likely to suppress a decrease in chromaticity.

[0328] (Compound represented by general formula (24)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (24).

[0329] [ka]

[0330] (In the general formula (24), R 2401 ~R 2412 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (241), However, R 2401 ~R 2412 at least one of the groups is a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms; When a plurality of groups represented by the general formula (241) are present, the plurality of groups represented by the general formula (241) are the same or different from each other, L 241 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 241 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, m 24 is 1, 2, 3, 4 or 5, L 241 If there are two or more, there are two or more L241 are identical or different from each other, Ar 241 If there are two or more, there are two or more Ar 241 are identical or different from each other, In the general formula (241), * indicates the bonding position with the benz[a]anthracene ring in the general formula (24).

[0331] When the first light-emitting layer contains the compound represented by the general formula (24) as the first organic material, the first light-emitting layer can be endowed with electron transport properties.

[0332] (Compound represented by general formula (25)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (25).

[0333] [ka]

[0334] (In the general formula (25), R 2501 ~R 2510 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring; R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 2501 ~R 2510 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (251), However, when the substituted or unsubstituted monocyclic ring has a substituent, the substituent when the substituted or unsubstituted condensed ring has a substituent, and R 2501 ~R 2510 at least one of the above is a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms; When a plurality of groups represented by the general formula (251) are present, the plurality of groups represented by the general formula (251) are the same or different from each other, L 251 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 251 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, m 25 is 1, 2, 3, 4 or 5, L 251 If there are two or more, there are two or more L251 are identical or different from each other, Ar 251 If there are two or more, there are two or more Ar 251 are identical or different from each other, In the general formula (251), * indicates the bonding position to the ring represented by the general formula (25).

[0335] When the first light-emitting layer contains the compound represented by the general formula (25) as the first organic material, the first light-emitting layer can be endowed with electron transport properties.

[0336] (Compound represented by general formula (26)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (26).

[0337] [ka]

[0338] (In the general formula (26), R 2601 ~R 2603 are each independently Hydrogen atom, Halogen atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted halogenated alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aralkylamino group having 7 to 60 carbon atoms; -C(=O)R 801 A group represented by Cyano group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 2606 ~R 2610 one or more pairs of adjacent two or more of R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 2606 and R 2610 are each independently A hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. 2607 ~R 2609 are each independently Hydrogen atom, Halogen atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted halogenated alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aralkylamino group having 7 to 60 carbon atoms; -C(=O)R 801 A group represented by Cyano group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, However, R 2608 and R 2609 or R 2608 and R 2607 does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring, 2607 ~R 2609 At least one of a substituted or unsubstituted 9-carbazolyl group; a substituted or unsubstituted azacarbazolyl group having 2 to 5 nitrogen atoms, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted phenyl group, or is a substituted biphenyl group, The substituted phenyl group and the substituted biphenyl group each independently represent a substituted or unsubstituted 9-carbazolyl group; a substituted or unsubstituted azacarbazolyl group having 2 to 5 nitrogen atoms, a substituted or unsubstituted dibenzofuranyl group, and at least one group selected from the group consisting of substituted or unsubstituted dibenzothiophenyl groups; However, R 2608 and R 2609 or R 2608 and R 2607 and R 2607 ~R 2609 is not bound to the benzene ring to form a carbazolyl group, R 2607 ~R 2609 is a substituted or unsubstituted dibenzofuranyl group or a substituted or unsubstituted dibenzothiophenyl group, R 2601 ~R 2603 is a hydrogen atom, R 2601 ~R 2603 and R 2606 ~R 2610 Each of the substituents does not have a polymerizable functional group at its terminal, X 26is a sulfur atom or an oxygen atom.)

[0339] In the compound represented by the general formula (26), R 2608 and R 2609 and R 2608 and R 2607 It is preferable that the pair of does not form a substituted or unsubstituted monocycle and does not form a substituted or unsubstituted condensed ring.

[0340] R 2607 and R 2609 at least one of them is a substituted or unsubstituted 9-carbazolyl group, a substituted or unsubstituted azacarbazolyl group having 2 to 5 nitrogen atoms, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted phenyl group, or a substituted biphenyl group, and it is preferable that the substituted phenyl group and the substituted biphenyl group each independently have at least one group selected from the group consisting of a substituted or unsubstituted 9-carbazolyl group, a substituted or unsubstituted azacarbazolyl group having 2 to 5 nitrogen atoms, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted dibenzothiophenyl group.

[0341] R 2601 ~R 2603 At least one of R is preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, 2603 is more preferably a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0342] Aralkylamino groups having 7 to 60 carbon atoms are represented by -N(R 966 )(R 967 ) is a group represented by R 966 and R 967 each independently represents a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms; R966 and R 967 At least one of them is a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms.

[0343] (Compounds represented by general formula (27) and compounds represented by general formula (28)) In the organic EL device according to this embodiment, the first organic material is also preferably a compound represented by the following general formula (27) or general formula (28).

[0344] [ka]

[0345] [ka]

[0346] (In the general formula (27) and general formula (28), Ar 271 , Ar 272 and Ar 273 are each independently a substituted or unsubstituted aromatic hydrocarbon group having 6 ring carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 6 ring atoms, However, Ar 271 , Ar 272 and Ar 273 may have one or more substituents Y, and the multiple substituents Y may be the same or different from each other, The substituent Y is an alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, an aralkyl group having 7 to 50 carbon atoms; -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or Ar 271 , Ar 272 and Ar 273 is a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms and connected to any one of the following via a carbon-carbon bond; X 271 , X 272 , X 273 and X 274 each independently represents an oxygen atom, a sulfur atom, or NR 271 or CR 272 R 273 and R 271 , R 272 and R 273 are each independently an alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, an aralkyl group having 7 to 50 carbon atoms; -Si(R 901 )(R 902 )(R 903 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms, r, p and q each independently represent 0 or 1; s is 1, 2 or 3; n is 2, 3, or 4, and each of L 273 is a dimer, trimer, or tetramer having the linking group However, X 271 and X 272 Both are NR 271 and r and p are 0 and q is 1; or X 271 and X 273 Both are NR 271 When p and q are 0 and r is 1, at least one R 271 is a substituted or unsubstituted monovalent fused aromatic heterocyclic group having 8 to 24 ring atoms, L 271 teeth, Single bond, an alkylene group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a divalent silyl group or a divalent substituted silyl group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or Ar 271 is a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; L 272 teeth, Single bond, an alkylene group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a divalent silyl group or a divalent substituted silyl group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or Ar 273 is a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; However, X 271 and X 272 Both are CR 272 R 273 r and p are 0, q is 1, and L 271 and L 272 are both substituted or unsubstituted arylene groups having 6 to 50 ring carbon atoms, or X 271 and X 273 Both are CR 272 R 273 where p and q are 0, r is 1, and L 271 and L 272 are both substituted or unsubstituted arylene groups having 6 to 50 ring carbon atoms, L 271 and L 272 At the same time, Ar 272 There is no case where it is connected to the parallel position. If n is 2, L 273 teeth, Single bond, an alkylene group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a divalent silyl group or a divalent substituted silyl group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or Ar 273 is a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; When n is 3, L 273 teeth, a trivalent saturated hydrocarbon group having 1 to 50 carbon atoms, a substituted or unsubstituted trivalent cyclic saturated hydrocarbon group having 3 to 50 ring carbon atoms, a trivalent silyl group or a trivalent substituted silyl group having 1 to 20 carbon atoms, a substituted or unsubstituted trivalent aromatic hydrocarbon group having 6 to 50 ring carbon atoms, or Ar 273 is a substituted or unsubstituted trivalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; If n is 4, L 273 teeth, a tetravalent saturated hydrocarbon group having 1 to 50 carbon atoms, a substituted or unsubstituted tetravalent cyclic saturated hydrocarbon group having 3 to 50 ring carbon atoms, Silicon atom, a substituted or unsubstituted tetravalent aromatic hydrocarbon group having 6 to 50 ring carbon atoms, or Ar 273 is a substituted or unsubstituted tetravalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; However, X 271 and X 272 Both are CR 272 R 273 r and p are 0, q is 1, and L 271 and L 273 are both substituted or unsubstituted divalent, trivalent or tetravalent aromatic hydrocarbon groups having 6 to 50 ring carbon atoms, or X 271 and X 273 Both are CR 272 R 273 where p and q are 0, r is 1, and L271 and L 273 are both substituted or unsubstituted divalent, trivalent or tetravalent aromatic hydrocarbon groups having 6 to 50 ring carbon atoms, 271 and L 273 At the same time, Ar 272 There is no case where it is connected to the parallel position. A 271 teeth, Hydrogen atom, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or L 271 and a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms connected to each other via a carbon-carbon bond, provided that L 271 is an alkylene group having 1 to 50 carbon atoms, 271 is not a hydrogen atom, A 272 teeth, Hydrogen atom, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or L 272 is a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; However, L 272 is an alkylene group having 1 to 50 carbon atoms, 272 is not a hydrogen atom, and X 271 and X 272 is an oxygen atom, a sulfur atom, or CR 272 R 273 r and p are 0, q is 1, and L 271 and L 272 are both single bonds, and A 271 and A 272are both hydrogen atoms, or X 271 and X 273 is an oxygen atom, a sulfur atom, or CR 272 R 273 where p and q are 0, r is 1, and L 271 and L 272 are both single bonds, and A 271 and A 272 When both are hydrogen atoms, Ar 272 has one or more substituents Y, and the substituent Y is not a methyl group or an unsubstituted phenyl group, A 271 , A 272 , L 271 , L 272 and L 273 does not contain a carbonyl group, The general formula (27) is not a structure represented by the following general formula (271): The general formula (28) is not a structure represented by the following general formula (281).

[0347] [ka]

[0348] (In the general formula (271), X 271 , X 272 , A 271 , A 272 , L 271 and L 272 is X in the general formula (27). 271 , X 272 , A 271 , A 272 , L 271 and L 272 is synonymous with Y 271 , Y 272 and Y 273 are each independently an alkyl group having 1 to 20 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, an alkoxy group having 1 to 20 carbon atoms; an aralkyl group having 7 to 24 carbon atoms; A silyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 24 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms and connected to any one of the benzene rings a, b, and c via a carbon-carbon bond; d and f are 3, and e is 2.

[0349] [ka]

[0350] (In the general formula (281), X 271 , X 272 , A 271 , L 271 , L 273 and n are each the X in the general formula (28). 271 , X 272 , A 271 , L 271 , L 273 and n, Y 271 , Y 272 and Y 273 are each independently an alkyl group having 1 to 20 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, an alkoxy group having 1 to 20 carbon atoms; an aralkyl group having 7 to 24 carbon atoms; A silyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 24 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms and connected to any one of the benzene rings a, b, and c via a carbon-carbon bond; d and f are 3, and e is 2.

[0351] The compounds represented by the general formulas (25) to (28) as the first organic material have a wide energy gap (large singlet energy).

[0352] In the first organic material of the organic EL device according to this embodiment, R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 801 and R 802 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 901 If there are multiple R 901 are the same or different from each other, R 902 If there are multiple R 902 are the same or different from each other, R 903 If there are multiple R 903 are the same or different from each other, R 904 If there are multiple R 904 are the same or different from each other, R 905 If there are multiple R 905 are the same or different from each other, R 906 If there are multiple R 906 are the same or different from each other, R 907 If there are multiple R 907 are the same or different from each other, R 801 If there are multiple R801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other.

[0353] In the first organic material according to this embodiment, any group described as "substituted or unsubstituted" is preferably an "unsubstituted" group.

[0354] (First method for producing organic material) The first organic material can be produced by a known method. The first organic material can also be produced by following a known method and using known alternative reactions and raw materials suited to the intended purpose.

[0355] (First Specific Example of Organic Material) Specific examples of the first organic material include the following compounds, however, the present invention is not limited to these specific examples of the first organic material.

[0356] [ka]

[0357] [ka]

[0358] [ka]

[0359] [ka]

[0360] [ka]

[0361] [ka]

[0362] [ka]

[0363] [ka]

[0364] (Second Host Material) In the organic EL device according to this embodiment, the second host material is a compound having a structure different from that of the first host material and the first organic material. The third compound as the second host material satisfies the above formulae (Mathematical Formula 1) and (Mathematical Formula 2). In the organic EL device according to this embodiment, the third compound as the second host material is preferably, for example, a compound represented by the following general formula (3). In addition, the third compound as the second host material may be any compound selected from the group consisting of the compounds represented by the general formulas (1), (11X), (12X), (13X), (14X), (21), (22), (23), (24), (25), (26), (27), and (28), so long as it satisfies the formulas (Mathematical Formula 1) and (Mathematical Formula 2).

[0365] [ka]

[0366] (In the general formula (3), R 301 ~R 308 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L 301 and L 302 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 301 and Ar 302 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0367] (In the third compound according to this embodiment, R 901 , R 902 , R 903 , R 904 , R 905 , R 906 , R 907 , R 801and R 802 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 901 If there are multiple R 901 are the same or different from each other, R 902 If there are multiple R 902 are the same or different from each other, R 903 If there are multiple R 903 are the same or different from each other, R 904 If there are multiple R 904 are the same or different from each other, R 905 If there are multiple R 905 are the same or different from each other, R 906 If there are multiple R 906 are the same or different from each other, R 907 If there are multiple R 907 are the same or different from each other, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are either identical or different.)

[0368] In the organic EL element according to this embodiment, R 301 ~R 308 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms; -C(=O)R 801 A group represented by -COOR 802 A group represented by Halogen atoms, a cyano group, or is a nitro group, L 301 and L 302 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar 301 and Ar 302 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is preferably a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0369] In the organic EL element according to this embodiment, L 301 and L 302 are each independently A single bond, or a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, Ar 301 and Ar 302 are preferably each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0370] In the organic EL element according to this embodiment, Ar 301 and Ar 302 are each independently Phenyl group, naphthyl group, A phenanthryl group, Biphenyl group, terphenyl group, Diphenylfluorenyl group, Dimethylfluorenyl group, Benzodiphenylfluorenyl group, Benzodimethylfluorenyl group, Dibenzofuranyl group, Dibenzothienyl group, a naphthobenzofuranyl group, or A naphthobenzothienyl group is preferred.

[0371] In the organic EL device according to this embodiment, the third compound represented by the general formula (3) is preferably a compound represented by the following general formula (301), general formula (302), general formula (303), general formula (304), general formula (305), general formula (306), general formula (307), general formula (308) or general formula (309).

[0372] [ka]

[0373] [ka]

[0374] [ka]

[0375] [ka]

[0376] [ka]

[0377] [ka]

[0378] (In the general formulae (301) to (309), L 301 and Ar 301 is L in the general formula (3). 301 and Ar 301 is synonymous with R 301 ~R 308 each independently represents R in the general formula (3). 301 ~R 308 is equivalent to

[0379] The third compound represented by the general formula (3) is also preferably a compound represented by the following general formula (321), general formula (322), general formula (323), general formula (324), general formula (325), general formula (326), general formula (327), general formula (328) or general formula (329).

[0380] [ka]

[0381] [ka]

[0382] [ka]

[0383] [ka]

[0384] [ka]

[0385] [ka]

[0386] (In the above general formula (321), general formula (322), general formula (323), general formula (324), general formula (325), general formula (326), general formula (327), general formula (328) and general formula (329), R 301 And R 303 ~R 308 each independently represents R in the general formula (3). 301 And R 303 ~R 308 is synonymous with L 301 and Ar 301 respectively represent L in the general formula (3). 301 and Ar 301 is synonymous with L 303 is L in the general formula (3). 301 is synonymous with L 303 and L 301 are identical or different from each other, Ar 303 is Ar in the general formula (3). 301 is synonymous with Ar 303 and Ar 301 are either identical or different.)

[0387] The third compound represented by the general formula (3) is also preferably a compound represented by the following general formula (341), general formula (342), general formula (343), general formula (344), general formula (345), general formula (346), general formula (347), general formula (348) or general formula (349).

[0388] [ka]

[0389] [ka]

[0390] [ka]

[0391] [ka]

[0392] [ka]

[0393] [ka]

[0394] (In the general formula (341), the general formula (342), the general formula (343), the general formula (344), the general formula (345), the general formula (346), the general formula (347), the general formula (348), and the general formula (349), R 301 , R 302 And R 304 ~R 308 each independently represents R in the general formula (3). 301 , R 302 And R 304 ~R 308 is synonymous with L301 and Ar 301 respectively represent L in the general formula (3). 301 and Ar 301 is synonymous with L 303 is L in the general formula (3). 301 is synonymous with L 303 and L 301 are identical or different from each other, Ar 303 is Ar in the general formula (3). 301 is synonymous with Ar 303 and Ar 301 are either identical or different.)

[0395] In the third compound represented by the general formula (3), -L 303 -Ar 303 R is not a group represented by 301 ~R 308 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or -Si(R 901 )(R 902 )(R 903 ) is preferably a group represented by the formula:

[0396] L 301 teeth, A single bond, or an unsubstituted arylene group having 6 to 22 ring carbon atoms, Ar 301 is preferably a substituted or unsubstituted aryl group having 6 to 22 ring carbon atoms.

[0397] In the organic EL element according to this embodiment, In the third compound represented by the general formula (3), R 301 ~R 308 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or -Si(R 901 )(R 902 )(R 903 ) is preferably a group represented by the formula:

[0398] In the organic EL device according to this embodiment, in the third compound represented by the general formula (3), R 301 ~R 308 is preferably a hydrogen atom.

[0399] In the third compound, all of the groups described as "substituted or unsubstituted" are preferably "unsubstituted" groups.

[0400] (Method for Producing Second Host Material) The second host material can be produced by a known method. The second host material can also be produced by following a known method and using known alternative reactions and raw materials suited to the intended product.

[0401] (Specific Examples of Second Host Material) Specific examples of the second host material include the following compounds, however, the present invention is not limited to these specific examples of the second host material.

[0402] [ka]

[0403] [ka]

[0404] [ka]

[0405] [ka]

[0406]

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[0407]

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[0408]

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[0409]

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[0410]

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[0411]

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[0412]

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[0413]

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[0414]

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[0416]

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[0417]

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[0418]

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[0419]

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[0427] (First Dopant Material and Second Dopant Material) In the organic EL device according to this embodiment, the first dopant material and the second dopant material are, for example, each independently one or more compounds selected from the group consisting of a compound represented by the following general formula (4), a compound represented by the following general formula (5), a compound represented by the following general formula (6), a compound represented by the following general formula (7), a compound represented by the following general formula (8), a compound represented by the following general formula (9), and a compound represented by the following general formula (10). In one embodiment, the first dopant material and the second dopant material are compounds having the same structure. In one embodiment, the first dopant material and the second dopant material are compounds having different structures.

[0428] (Compound represented by general formula (4)) The compound represented by the general formula (4) will be described.

[0429] [ka]

[0430] (In the general formula (4), Each Z is independently CRa or a nitrogen atom; Ring A1 and ring A2 each independently represent a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or A substituted or unsubstituted heterocycle having 5 to 50 ring atoms, When there are a plurality of Ra, one or more pairs of adjacent two or more of the plurality of Ra are joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, n21 and n22 each independently represent 0, 1, 2, 3, or 4; When a plurality of Rb's are present, one or more pairs of adjacent two or more of the plurality of Rb's are joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, When there are a plurality of Rc's, one or more pairs of adjacent two or more of the plurality of Rc's are joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, The Ra, Rb and Rc which do not form a monocycle and do not form a fused ring each independently represent a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0431] In the first dopant material and the second dopant material, R 901 , R 902 , R 903 , R 904 , R 905 , R906 and R 907 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 901 If there are multiple R 901 are the same or different from each other, R 902 If there are multiple R 902 are the same or different from each other, R 903 If there are multiple R 903 are the same or different from each other, R 904 If there are multiple R 904 are the same or different from each other, R 905 If there are multiple R 905 are the same or different from each other, R 906 If there are multiple R 906 are the same or different from each other, R 907 If there are multiple R 907 are the same or different from each other.

[0432] The "aromatic hydrocarbon ring" of the A1 ring and the A2 ring has the same structure as the compound in which a hydrogen atom has been introduced into the above-mentioned "aryl group". The "aromatic hydrocarbon ring" of ring A1 and ring A2 contains the two carbon atoms on the central fused two-ring structure of general formula (4) as ring-forming atoms. Specific examples of the "substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms" include compounds in which a hydrogen atom has been introduced into the "aryl group" described in specific example group G1.

[0433] The "heterocycle" of the A1 ring and the A2 ring has the same structure as the compound in which a hydrogen atom has been introduced into the above-mentioned "heterocyclic group". The "heterocycle" of ring A1 and ring A2 contains the two carbon atoms on the central fused two-ring structure of general formula (4) as ring-forming atoms. Specific examples of the "substituted or unsubstituted heterocyclic ring having 5 to 50 ring atoms" include compounds in which a hydrogen atom has been introduced into the "heterocyclic group" described in specific example group G2.

[0434] Rb is bonded to any of the carbon atoms forming the aromatic hydrocarbon ring as ring A1, or any of the atoms forming the heterocycle as ring A1.

[0435] Rc is bonded to any of the carbon atoms forming the aromatic hydrocarbon ring as ring A2, or any of the atoms forming the heterocycle as ring A2.

[0436] At least one of Ra, Rb, and Rc is preferably a group represented by the following general formula (4a), and at least two of them are more preferably groups represented by the following general formula (4a).

[0437] [ka]

[0438] (In the general formula (4a), L 401 teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, Ar 401 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or It is a group represented by the following general formula (4b).

[0439] [ka]

[0440] (In the general formula (4b), L 402 and L 403 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, Ar 402 and Ar 403 The set consisting of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, Ar does not form the monocyclic ring and does not form the condensed ring. 402 and Ar 403 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0441] In one embodiment, the compound represented by general formula (4) is represented by the following general formula (42).

[0442] [ka]

[0443] (In the general formula (42), R 401 ~R 411 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 401 ~R 411 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0444] R 401 ~R 411 Among these, at least one is preferably a group represented by the general formula (4a), and it is more preferable that at least two are groups represented by the general formula (4a). R 404 and R 411 is preferably a group represented by the general formula (4a).

[0445] In one embodiment, the compound represented by the general formula (4) is a compound in which a structure represented by the following general formula (4-1) or general formula (4-2) is bonded to the A1 ring. In one embodiment, the compound represented by the general formula (42) is R 404 ~R 407 is a compound having a structure represented by the following general formula (4-1) or general formula (4-2) bonded to the ring to which

[0446] [ka]

[0447] (In the general formula (4-1), two * are each independently bonded to a ring-forming carbon atom of an aromatic hydrocarbon ring or a ring-forming atom of a heterocycle as the A1 ring in the general formula (4), or to R 404 ~R 407 Binds to either The three * in the general formula (4-2) each independently bond to a ring-forming carbon atom of the aromatic hydrocarbon ring or a ring-forming atom of the heterocycle as the A1 ring in the general formula (4), or bond to R 404 ~R 407 Binds to either R 421 ~R 427 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R 431 ~R 438 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 421 ~R 427And R 431 ~R 438 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0448] In one embodiment, the compound represented by the general formula (4) is a compound represented by the following general formula (41-3), general formula (41-4), or general formula (41-5).

[0449] [ka]

[0450] [ka]

[0451] [ka]

[0452] (In the general formula (41-3), formula (41-4) and formula (41-5), Ring A1 is as defined in formula (4), R 421 ~R 427 each independently represents R in the general formula (4-1) 421 ~R 427 is synonymous with R 440 ~R 448 each independently represents R in the general formula (42) 401 ~R 411 is equivalent to

[0453] In one embodiment, the substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms as ring A1 in general formula (41-5) is a substituted or unsubstituted naphthalene ring, or It is a substituted or unsubstituted fluorene ring.

[0454] In one embodiment, the substituted or unsubstituted heterocycle having 5 to 50 ring atoms as ring A in general formula (41-5) is a substituted or unsubstituted dibenzofuran ring; a substituted or unsubstituted carbazole ring, or It is a substituted or unsubstituted dibenzothiophene ring.

[0455] In one embodiment, the compound represented by the general formula (4) or the general formula (42) is selected from the group consisting of compounds represented by the following general formulas (461) to (467).

[0456] [ka]

[0457] [ka]

[0458] [ka]

[0459] [ka]

[0460] [ka]

[0461] (In the general formula (461), general formula (462), general formula (463), general formula (464), general formula (465), general formula (466) and general formula (467), R 421 ~R 427 each independently represents R in the general formula (4-1) 421 ~R 427 is synonymous with R 431 ~R 438 each independently represents R in the general formula (4-2) 431 ~R 438 is synonymous with R 440 ~R 448 And R 451 ~R 454 each independently represents R in the general formula (42) 401 ~R 411 is synonymous with X4 is an oxygen atom, NR 801 , or C(R 802 )(R 803 ) and R 801 , R 802 and R 803 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other, R 803 If there are multiple R 803 are either identical or different.)

[0462] In one embodiment, the compound represented by the general formula (42) is R 401 ~R 411 one or more pairs of adjacent two or more of these are bonded to each other to form a substituted or unsubstituted monocycle, or are bonded to each other to form a substituted or unsubstituted fused ring, and this embodiment is described in detail below as a compound represented by general formula (45).

[0463] (Compound represented by general formula (45)) The compound represented by the general formula (45) will be described.

[0464] [ka]

[0465] (In the general formula (45), R 461 and R 462 A set consisting of 462 and R 463 A set consisting of 464 and R 465 A set consisting of 465 and R 466 A set consisting of 466 and R 467 A set consisting of 468 and R 469 A set consisting of 469 and R470 and R 470 and R 471 and two or more of the pairs selected from the group consisting of: however, R 461 and R 462 and R 462 and R 463 A set consisting of and; R 464 and R 465 and R 465 and R 466 A set consisting of and; R 465 and R 466 and R 466 and R 467 A set consisting of and; R 468 and R 469 and R 469 and R 470 and R 469 and R 470 and R 470 and R 471 and do not simultaneously form a ring, R 461 ~R 471 The two or more rings formed by are the same or different, R does not form the monocyclic ring and does not form the condensed ring 461 ~R 471 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R904 ) a group represented by -S-(R 905 ), -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0466] In the general formula (45), R n and R n+1 (n represents an integer selected from 461, 462, 464 to 466, and 468 to 470) are bonded to each other to form R n and R n+1 is bonded to the two ring-forming carbon atoms to form a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring. The ring is preferably composed of atoms selected from the group consisting of carbon atoms, oxygen atoms, sulfur atoms, and nitrogen atoms, and the number of atoms in the ring is preferably 3 to 7, and more preferably 5 or 6.

[0467] The number of the ring structures in the compound represented by the general formula (45) is, for example, 2, 3, or 4. The two or more ring structures may be present on the same benzene ring on the parent skeleton of the general formula (45), or may be present on different benzene rings. For example, when the compound has three ring structures, one ring structure may be present on each of the three benzene rings in the general formula (45).

[0468] Examples of the ring structure in the compound represented by general formula (45) include structures represented by the following general formulae (451) to (460).

[0469] [ka]

[0470] (In the general formulae (451) to (457), *1 and *2, *3 and *4, *5 and *6, *7 and *8, *9 and *10, *11 and *12, and *13 and *14 are R n and R n+1 represents the two ring-forming carbon atoms to which R n The ring carbon atom to which is bonded may be any of the two ring carbon atoms represented by *1 and *2, *3 and *4, *5 and *6, *7 and *8, *9 and *10, *11 and *12, and *13 and *14; X 45 is C(R 4512 )(R 4513 ), N.R. 4514 , an oxygen atom or a sulfur atom; R 4501 ~R 4506 and R 4512 ~R 4513 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 4501 ~R 4514 each independently represents R in the general formula (45) 461 ~R 471 is equivalent to

[0471] [ka]

[0472] (In the general formulae (458) to (460), *1 and *2, and *3 and *4 are R n and R n+1 represents the two ring-forming carbon atoms to which R n The ring carbon atom to which is bonded may be either one of the two ring carbon atoms represented by *1 and *2, or *3 and *4. X 45 is C(R 4512 )(R 4513 ), N.R. 4514 , an oxygen atom or a sulfur atom; R 4512 ~R 4513 and R 4515 ~R 4525 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 4512 ~R 4513 , R 4515 ~R 4521 and R 4522 ~R 4525 , and R 4514 each independently represents R in the general formula (45) 461 ~R 471 is equivalent to

[0473] In the general formula (45), R 462 , R 464 , R 465 , R 470 and R 471 At least one of (preferably, R 462 , R 465 and R 470 At least one of, more preferably R 462 ) is preferably a group that does not form a ring structure.

[0474] (i) In the general formula (45), R n and R n+1 A substituent when the ring structure formed by the formula (I) has a substituent, (ii) In the general formula (45), R 461 ~R 471 , and (iii) R in formulas (451) to (460) 4501 ~R 4514 , R 4515 ~R 4525are preferably each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or It is any group selected from the group consisting of groups represented by the following general formulae (461) to (464).

[0475] [ka]

[0476] (In the general formulae (461) to (464), R d are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, X 46 is C(R 801 )(R 802 ), N.R. 803 , an oxygen atom or a sulfur atom; R 801 , R 802 and R 803 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other, R 803 If there are multiple R 803 are the same or different from each other, p1 is 5, p2 is 4, p3 is 3, p4 is 7, In the general formulae (461) to (464), * each independently indicates a bonding position to a ring structure. In the first dopant material and the second dopant material, R 901 ~R 907 is as defined above.

[0477] In one embodiment, the compound represented by general formula (45) is represented by any one of the following general formulae (45-1) to (45-6).

[0478] [ka]

[0479] [ka]

[0480] (In the general formulae (45-1) to (45-6), rings d to i each independently represent a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring; R 461 ~R 471 each independently represents R in the general formula (45) 461 ~R 471 is equivalent to

[0481] In one embodiment, the compound represented by general formula (45) is represented by any one of the following general formulae (45-7) to (45-12).

[0482] [ka]

[0483] [ka]

[0484] (In the general formulae (45-7) to (45-12), rings d to f, k, and j each independently represent a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring; R 461 ~R 471 each independently represents R in the general formula (45) 461 ~R 471 is equivalent to

[0485] In one embodiment, the compound represented by general formula (45) is represented by any one of the following general formulae (45-13) to (45-21).

[0486] [ka]

[0487] [ka]

[0488] [ka]

[0489] (In the general formulae (45-13) to (45-21), rings d to k each independently represent a substituted or unsubstituted monocyclic ring or a substituted or unsubstituted fused ring; R 461 ~R 471 each independently represents R in the general formula (45) 461 ~R 471 is equivalent to

[0490] In the case where the ring g or the ring h further has a substituent, examples of the substituent include a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, A group represented by the general formula (461), A group represented by the general formula (463), or Examples of the group include the group represented by the general formula (464).

[0491] In one embodiment, the compound represented by general formula (45) is represented by any one of the following general formulae (45-22) to (45-25).

[0492] [ka]

[0493] (In the general formulae (45-22) to (45-25), X 46 and X 47 are each independently C(R 801 )(R 802 ), N.R. 803 , an oxygen atom or a sulfur atom; R 461 ~R 471 And R 481 ~R 488 each independently represents R in the general formula (45) 461 ~R 471 is synonymous with. R 801 , R 802 and R 803 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other, R 803 If there are multiple R 803 are either identical or different.)

[0494] In one embodiment, the compound represented by general formula (45) is represented by the following general formula (45-26).

[0495] [ka]

[0496] (In the general formula (45-26), X 46 is C(R 801 )(R 802 ), N.R. 803 , an oxygen atom or a sulfur atom; R 463 , R 464 , R 467 , R 468 , R 471 , and R 481 ~R 492 each independently represents R in the general formula (45) 461 ~R 471 is synonymous with. R 801 , R 802 and R 803 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other, R 803 If there are multiple R 803 are either identical or different.)

[0497] Specific examples of the compound represented by the general formula (4) include the compounds shown below. In the specific examples, Ph represents a phenyl group, and D represents a deuterium atom.

[0498] [ka]

[0499] [ka]

[0500] [ka]

[0501] [ka]

[0502] [ka]

[0503] [ka]

[0504] [ka]

[0505] [ka]

[0506] [ka]

[0507] [ka]

[0508] (Compound represented by general formula (5)) The compound represented by the general formula (5) will be described below. The compound represented by the general formula (5) corresponds to the compound represented by the above-mentioned general formula (41-3).

[0509] [ka]

[0510] (In the general formula (5), R 501 ~R 507 and R 511 ~R 517 Among the groups of two or more adjacent joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 501 ~R 507 and R 511 ~R 517 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms. R 521 and R 522 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0511] "R 501 ~R 507 and R 511 ~R 517 "A set of two or more adjacent pairs of R 501 and R 502 A set consisting of R 502 and R 503 A set consisting of R 503 and R 504 A set consisting of R 505 and R 506 A set consisting of R 506 and R507 A set consisting of R 501 and R 502 and R 503 A combination of a set consisting of:

[0512] In one embodiment, R 501 ~R 507 and R 511 ~R 517 At least one, preferably two, of the formula (I) are -N(R 906 )(R 907 ) is a group represented by the formula:

[0513] In one embodiment, R 501 ~R 507 and R 511 ~R 517 are each independently Hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0514] In one embodiment, the compound represented by the general formula (5) is a compound represented by the following general formula (52).

[0515] [ka]

[0516] (In the general formula (52), R 531 ~R 534 and R 541 ~R 544 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 531 ~R 534 , R 541 ~R 544, and R 551 and R 552 are each independently Hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 561 ~R 564 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0517] In one embodiment, the compound represented by the general formula (5) is a compound represented by the following general formula (53).

[0518] [ka]

[0519] (In the general formula (53), R 551 , R 552 and R 561 ~R 564 each independently represents R in the general formula (52) 551 , R 552 and R 561 ~R 564 is equivalent to

[0520] In one embodiment, R in the general formula (52) and the general formula (53) 561 ~R 564 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms (preferably a phenyl group).

[0521] In one embodiment, R in the general formula (5) 521 and R 522 R in the general formula (52) and the general formula (53) 551 and R 552 is a hydrogen atom.

[0522] In one embodiment, the substituent in the case of “substituted or unsubstituted” in the general formula (5), the general formula (52), and the general formula (53) is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0523] Specific examples of the compound represented by the general formula (5) include the compounds shown below.

[0524] [ka]

[0525] [ka]

[0526] [ka]

[0527] [ka]

[0528] [ka]

[0529] [ka]

[0530] [ka]

[0531] [ka]

[0532] [ka]

[0533] [ka]

[0534] [ka]

[0535] [ka]

[0536] [ka]

[0537] [ka]

[0538] [ka]

[0539] [ka]

[0540] (Compound represented by general formula (6)) The compound represented by the general formula (6) will be described.

[0541] [ka]

[0542] (In the general formula (6), Ring a, ring b and ring c each independently represent a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or A substituted or unsubstituted heterocycle having 5 to 50 ring atoms, R 601 and R 602 each independently forms a substituted or unsubstituted heterocycle together with the ring a, ring b, or ring c, or does not form a substituted or unsubstituted heterocycle; R that does not form a substituted or unsubstituted heterocycle 601 and R 602 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0543] The rings a, b and c are rings (substituted or unsubstituted aromatic hydrocarbon rings having 6 to 50 ring carbon atoms, or substituted or unsubstituted heterocyclic rings having 5 to 50 ring atoms) fused to the central fused two-ring structure of the general formula (6) composed of a boron atom and two nitrogen atoms.

[0544] The "aromatic hydrocarbon rings" of ring a, ring b, and ring c have the same structure as the compounds in which a hydrogen atom has been introduced into the above-mentioned "aryl group". The "aromatic hydrocarbon ring" of ring a contains the three carbon atoms on the central fused two-ring structure of general formula (6) as ring-forming atoms. The "aromatic hydrocarbon ring" of ring b and ring c contains the two carbon atoms on the central fused two-ring structure of general formula (6) as ring-forming atoms.

[0545] Specific examples of the "substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms" include compounds in which a hydrogen atom has been introduced into the "aryl group" described in specific example group G1. The "heterocycles" of ring a, ring b and ring c have the same structure as the compounds in which a hydrogen atom has been introduced into the above-mentioned "heterocyclic group". The "heterocycle" of ring a contains three carbon atoms on the central fused bicyclic structure of general formula (6) as ring-forming atoms. The "heterocycle" of rings b and c contains two carbon atoms on the central fused bicyclic structure of general formula (6) as ring-forming atoms. Specific examples of the "substituted or unsubstituted heterocycle having 5 to 50 ring-forming atoms" include compounds in which a hydrogen atom has been introduced into the "heterocyclic group" described in specific example group G2.

[0546] R 601 and R 602 may each independently bond to ring a, ring b, or ring c to form a substituted or unsubstituted heterocycle. In this case, the heterocycle contains the nitrogen atom on the central fused two-ring structure of the general formula (6). In this case, the heterocycle may contain a heteroatom other than the nitrogen atom. R 601 and R 602 is bonded to the ring a, ring b, or ring c, specifically means that an atom constituting the ring a, ring b, or ring c is bonded to R 601 and R 602 It means that the atoms that make up R are bonded together. For example, R 601 is bonded to the a ring, R 601 A two-ring (or three-ring or more) nitrogen-containing heterocycle may be formed by condensing a ring containing the same with ring a. Specific examples of the nitrogen-containing heterocycle include compounds corresponding to the nitrogen-containing two-ring or more condensed heterocyclic groups in specific example group G2. R 601 When is bonded to ring b, R 602is bonded to ring a, and R 602 The same applies when is bonded to ring c.

[0547] In one embodiment, the ring a, ring b, and ring c in the general formula (6) are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms. In one embodiment, the ring a, the ring b, and the ring c in the general formula (6) are each independently a substituted or unsubstituted benzene ring or naphthalene ring.

[0548] In one embodiment, R in the general formula (6) 601 and R 602 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, A substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms is preferred.

[0549] In one embodiment, the compound represented by the general formula (6) is a compound represented by the following general formula (62).

[0550] [ka]

[0551] (In the general formula (62), R 601A is R 611 and R 621 or a substituted or unsubstituted heterocyclic ring is formed by bonding to one or more selected from the group consisting of R 602A is R 613 and R 614 or a substituted or unsubstituted heterocyclic ring is formed by bonding to one or more selected from the group consisting of R that does not form a substituted or unsubstituted heterocycle 601Aand R 602A are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 611 ~R 621 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the substituted or unsubstituted heterocycle, does not form the monocycle, and does not form the fused ring. 611 ~R 621 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0552] R in the above general formula (62) 601A and R 602A are R in the general formula (6), 601 and R 602 is a group corresponding to For example, R 601A and R 611 may be bonded to form a two-ring (or three-ring or more) nitrogen-containing heterocycle in which a ring containing the ring is condensed with a benzene ring corresponding to the ring a. Specific examples of the nitrogen-containing heterocycle include compounds corresponding to the nitrogen-containing two-ring or more condensed heterocyclic groups in the specific example group G2. R 601A and R 621 If R is bonded, 602A and R 613 When R is bonded, 602A and R 614 The same applies when is combined.

[0553] R 611 ~R 621 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or They may be bonded to each other to form a substituted or unsubstituted fused ring. For example, R 611 and R 612 may be bonded to the 6-membered ring to form a structure in which a benzene ring, an indole ring, a pyrrole ring, a benzofuran ring, a benzothiophene ring, or the like is condensed with the 6-membered ring to which they are bonded, and the condensed ring formed is a naphthalene ring, a carbazole ring, an indole ring, a dibenzofuran ring, or a dibenzothiophene ring.

[0554] In one embodiment, R 611 ~R 621 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0555] In one embodiment, R 611 ~R 621 are each independently Hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0556] In one embodiment, R 611 ~R 621 are each independently A hydrogen atom, or It is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0557] In one embodiment, R 611 ~R 621 are each independently A hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; R 611 ~R 621 At least one of them is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0558] In one embodiment, the compound represented by the general formula (62) is a compound represented by the following general formula (63).

[0559] [ka]

[0560] (In the general formula (63), R 631 is R 646or not forming a substituted or unsubstituted heterocycle, R 633 is R 647 or not forming a substituted or unsubstituted heterocycle, R 634 is R 651 or not forming a substituted or unsubstituted heterocycle, R 641 is R 642 or not forming a substituted or unsubstituted heterocycle, R 631 ~R 651 At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the substituted or unsubstituted heterocycle, does not form the monocycle, and does not form the fused ring. 631 ~R 651 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0561] R 631 is R 646 may combine with R to form a substituted or unsubstituted heterocycle. For example, R 631 and R 646 Combined, R 646 may be bonded to a benzene ring, a ring containing N, and a benzene ring corresponding to ring a to form a nitrogen-containing heterocyclic ring having three or more condensed rings. Specific examples of the nitrogen-containing heterocyclic ring include compounds corresponding to the nitrogen-containing heterocyclic ring group having three or more condensed rings in the specific example group G2. 633 and R 647 If R is bonded, 634 and R 651 When R is bonded, 641 and R 642 The same applies when is combined.

[0562] In one embodiment, R 631 ~R 651 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0563] In one embodiment, R 631 ~R 651 are each independently Hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0564] In one embodiment, R631 ~R 651 are each independently A hydrogen atom, or It is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0565] In one embodiment, R 631 ~R 651 are each independently A hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; R 631 ~R 651 At least one of them is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0566] In one embodiment, the compound represented by the general formula (63) is a compound represented by the following general formula (63A):

[0567] [ka]

[0568] (In the general formula (63A), R 661 teeth, Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 662 ~R 665 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0569] In one embodiment, R 661 ~R 665 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0570] In one embodiment, R 661 ~R 665 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0571] In one embodiment, the compound represented by the general formula (63) is a compound represented by the following general formula (63B):

[0572] [ka]

[0573] (In the general formula (63B), R 671 and R 672 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 673 ~R 675 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -N(R 906 )(R 907 ) a group represented by It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0574] In one embodiment, the compound represented by the general formula (63) is a compound represented by the following general formula (63B').

[0575] [ka]

[0576] (In the general formula (63B′), R 672 ~R 675 each independently represents R in the general formula (63B) 672 ~R 675 is equivalent to

[0577] In one embodiment, R 671 ~R 675 At least one of the a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -N(R 906 )(R 907 ) a group represented by It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0578] In one embodiment, R 672 teeth, Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 671 and R 673 ~R 675 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; -N(R 906 )(R 907 ) a group represented by It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0579] In one embodiment, the compound represented by the general formula (63) is a compound represented by the following general formula (63C):

[0580] [ka]

[0581] (In the general formula (63C), R 681 and R 682 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms. R 683 ~R 686 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, or It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0582] In one embodiment, the compound represented by the general formula (63) is a compound represented by the following general formula (63C'):

[0583] [ka]

[0584] (In the general formula (63C'), R 683 ~R 686 each independently represents R in the general formula (63C) 683 ~R 686 is equivalent to

[0585] In one embodiment, R 681 ~R 686 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or It is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0586] In one embodiment, R 681 ~R 686 each independently represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0587] The compound represented by the general formula (6) is first prepared by connecting the ring a, the ring b and the ring c to a linking group (NR 601 Groups containing NR 602An intermediate can be produced by linking the a, b and c rings with a linking group (a group containing a boron atom) (reaction 2). In reaction 1, an amination reaction such as the Bachbrut-Hartwig reaction can be applied. In reaction 2, a tandem hetero Friedel-Crafts reaction can be applied.

[0588] Specific examples of the compound represented by the general formula (6) are given below, but these are merely illustrative, and the compound represented by the general formula (6) is not limited to the following specific examples.

[0589] [ka]

[0590] [ka]

[0591] [ka]

[0592] [ka]

[0593] [ka]

[0594] [ka]

[0595] [ka]

[0596] [ka]

[0597] [ka]

[0598] [ka]

[0599] [ka]

[0600] [ka]

[0601] (Compound represented by general formula (7)) The compound represented by the general formula (7) will be described.

[0602] [ka]

[0603] [ka]

[0604] (In the general formula (7), ring r is a ring represented by general formula (72) or general formula (73) fused at any position to an adjacent ring, ring q and ring s are each independently a ring represented by general formula (74) fused to an adjacent ring at any position, The p ring and the t ring each independently represent a structure represented by the general formula (75) or general formula (76) which is fused at any position of the adjacent ring, X7 is an oxygen atom, a sulfur atom, or NR 702 It is. R 701If there are multiple R 701 teeth, joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 701 and R 702 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, Ar 701 and Ar 702 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L 701 teeth, a substituted or unsubstituted alkylene group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenylene group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynylene group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, m1 is 0, 1 or 2; m2 is 0, 1, 2, 3 or 4; m3 is independently 0, 1, 2 or 3; m4 is independently 0, 1, 2, 3, 4 or 5; R 701 If there are multiple R 701 are identical or different from each other, When a plurality of X7s are present, the plurality of X7s are the same or different, R 702 If there are multiple R 702 are identical or different from each other, Ar 701 If there are multiple Ar 701 are identical or different from each other, Ar 702 If multiple Ar are present, multiple Ar 702 are identical or different from each other, L 701 If there are multiple L 701 are either identical or different.)

[0605] In the general formula (7), each of the p, q, r, s and t rings is fused to the adjacent ring by sharing two carbon atoms. The fused position and orientation are not limited, and condensation is possible at any position and orientation.

[0606] In one embodiment, in the general formula (72) or general formula (73) as the r ring, m1=0 or m2=0.

[0607] In one embodiment, the compound represented by the general formula (7) is represented by any one of the following general formulae (71-1) to (71-6).

[0608] [ka]

[0609] [ka]

[0610] [ka]

[0611] [ka]

[0612] [ka]

[0613] [ka]

[0614] (In the general formulae (71-1) to (71-6), R 701 , X7, Ar 701 , Ar 702 , L 701 , m1 and m3 are each R in the general formula (7). 701 , X7, Ar 701 , Ar 702 , L 701 , m1 and m3.)

[0615] In one embodiment, the compound represented by general formula (7) is represented by any one of the following general formulae (71-11) to (71-13).

[0616] [ka]

[0617] [ka]

[0618] [ka]

[0619] (In the general formulae (71-11) to (71-13), R 701 , X7, Ar 701 , Ar 702 , L 701 , m1, m3 and m4 are each R in the general formula (7). 701 , X7, Ar 701 , Ar 702 , L 701 , m1, m3 and m4.)

[0620] In one embodiment, the compound represented by general formula (7) is represented by any one of the following general formulae (71-21) to (71-25).

[0621] [ka]

[0622] [ka]

[0623] [ka]

[0624] [ka]

[0625] [ka]

[0626] (In the general formulae (71-21) to (71-25), R 701 , X7, Ar 701 , Ar 702 , L 701 , m1 and m4 are each R in the general formula (7). 701 , X7, Ar 701 , Ar 702 , L 701 , m1 and m4 are synonymous.

[0627] In one embodiment, the compound represented by the general formula (7) is represented by any one of the following general formulae (71-31) to (71-33).

[0628] [ka]

[0629] [ka]

[0630] [ka]

[0631] (In the general formulae (71-31) to (71-33), R 701 , X7, Ar 701 , Ar 702 , L 701 , m2 to m4 are each R in the general formula (7). 701 , X7, Ar 701 , Ar 702 , L 701, m2 to m4 are synonymous.)

[0632] In one embodiment, Ar 701 and Ar 702 each independently represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0633] In one embodiment, Ar 701 and Ar 702 one of the groups is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and Ar 701 and Ar 702 The other is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0634] Specific examples of the compound represented by the general formula (7) include the compounds shown below.

[0635] [ka]

[0636] [ka]

[0637] [ka]

[0638] [ka]

[0639] [ka]

[0640] [ka]

[0641] (Compound represented by general formula (8)) The compound represented by the general formula (8) will be described.

[0642] [ka]

[0643] (In the general formula (8), R 801 and R 802 , R 802 and R 803 , and R 803 and R 804 At least one pair of these is bonded to each other to form a divalent group represented by the following general formula (82): R 805 and R 806 , R 806 and R 807 , and R 807 and R 808 At least one pair of these is bonded to each other to form a divalent group represented by the following general formula (83).

[0644] [ka]

[0645] (R not forming a divalent group represented by the general formula (82) 801 ~R 804 , and R 811 ~R 814 At least one of the above is a monovalent group represented by the following general formula (84): R which does not form a divalent group represented by the general formula (83) 805 ~R 808 , and R 821 ~R 824 At least one of the above is a monovalent group represented by the following general formula (84): X8 is an oxygen atom, a sulfur atom, or NR 809 and R does not form a divalent group represented by the general formula (82) or the general formula (83), and is not a monovalent group represented by the general formula (84).801 ~R 808 R is not a monovalent group represented by the general formula (84). 811 ~R 814 and R 821 ~R 824 , and R 809 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0646] [ka]

[0647] (In the general formula (84), Ar 801 and Ar 802 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L 801 ~L 803 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms; a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, or a divalent linking group formed by bonding 2 to 4 groups selected from the group consisting of a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms and a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, In the general formula (84), * indicates the bonding position with the ring structure represented by the general formula (8), the group represented by the general formula (82) or the general formula (83).

[0648] In the general formula (8), the positions at which the divalent group represented by the general formula (82) and the divalent group represented by the general formula (83) are formed are not particularly limited, and R 801 ~R 808 The group can be formed at any possible position.

[0649] In one embodiment, the compound represented by the general formula (8) is represented by any one of the following general formulae (81-1) to (81-6).

[0650] [ka]

[0651] [ka]

[0652] [ka]

[0653] (In the general formulae (81-1) to (81-6), X8 has the same meaning as X8 in general formula (8). R 801 ~R 824 At least two of the are monovalent groups represented by general formula (84), R which is not a monovalent group represented by the general formula (84) 801 ~R 824 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0654] In one embodiment, the compound represented by general formula (8) is represented by any one of the following general formulae (81-7) to (81-18).

[0655] [ka]

[0656] [ka]

[0657] [ka]

[0658] [ka]

[0659] [ka]

[0660] [ka]

[0661] (In the general formulae (81-7) to (81-18), X8 has the same meaning as X8 in general formula (8). * is a single bond bonding to the monovalent group represented by general formula (84), R 801 ~R 824 R which is not a monovalent group represented by the general formula (84) in the general formulas (81-1) to (81-6) is independently 801 ~R 824 is equivalent to

[0662] R does not form a divalent group represented by the general formula (82) or the general formula (83), and is not a monovalent group represented by the general formula (84). 801 ~R 808 and R which is not a monovalent group represented by the general formula (84). 811 ~R 814 and R 821 ~R 824 are preferably each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0663] The monovalent group represented by the above general formula (84) is preferably represented by the following general formula (85) or general formula (86).

[0664] [ka]

[0665] (In the general formula (85), R 831 ~R 840 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, The symbol * in the general formula (85) has the same meaning as the symbol * in the general formula (84).

[0666] [ka]

[0667] (In the general formula (86), Ar 801 , L 801 and L 803 is Ar in the general formula (84). 801 , L 801 and L 803 is synonymous with HAr 801 is a structure represented by the following general formula (87).

[0668] [ka]

[0669] (In the general formula (87), X 81 is an oxygen atom or a sulfur atom, R 841 ~R 848 One of the following is L 803 is a single bond that bonds to R that is not a single bond 841 ~R 848 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0670] Specific examples of the compound represented by the general formula (8) include the compounds described in WO 2014 / 104144 and the compounds shown below.

[0671] [ka]

[0672] [ka]

[0673] [ka]

[0674] [ka]

[0675] [ka]

[0676] [ka]

[0677] (Compound represented by general formula (9)) The compound represented by the general formula (9) will be described.

[0678] [ka]

[0679] (In the general formula (9), A91 Ring and A 92 The rings are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or A substituted or unsubstituted heterocycle having 5 to 50 ring atoms, A 91 Ring and A 92 One or more rings selected from the group consisting of It bonds to * in the structure represented by the following general formula (92).

[0680] [ka]

[0681] (In the general formula (92), A 93 The ring is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or A substituted or unsubstituted heterocycle having 5 to 50 ring atoms, X9 is NR 93 , C(R 94 )(R 95 ), Si(R 96 )(R 97 ), Ge(R 98 )(R 99 ), an oxygen atom, a sulfur atom or a selenium atom; R 91 and R 92 teeth, joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the monocyclic ring and does not form the condensed ring 91 and R 92 , and R 93 ~R 99 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0682] A 91 Ring and A 92 One or more rings selected from the group consisting of rings are bonded to * in the structure represented by general formula (92). That is, in one embodiment, 91 A ring-forming carbon atom of the aromatic hydrocarbon ring or a ring-forming atom of the heterocycle is bonded to * in the structure represented by the general formula (92). 92 A ring-forming carbon atom of the aromatic hydrocarbon ring or a ring-forming atom of the heterocycle is bonded to * in the structure represented by general formula (92).

[0683] In one embodiment, A 91 Ring and A 92 A group represented by the following general formula (93) is bonded to either or both of the rings.

[0684] [ka]

[0685] (In the general formula (93), Ar 91and Ar 92 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L 91 ~L 93 are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms; a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, or a divalent linking group formed by bonding 2 to 4 members selected from the group consisting of a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms and a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, In the general formula (93), * represents A 91 Ring and A 92 Indicates the bonding position to one of the rings.

[0686] In one embodiment, A 91 In addition to the ring, A 92 A ring-forming carbon atom of the aromatic hydrocarbon ring or a ring-forming atom of the heterocycle is bonded to * in the structure represented by the general formula (92). In this case, the structures represented by the general formula (92) may be the same or different from each other.

[0687] In one embodiment, R 91 and R 92 each independently represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms. In one embodiment, R 91 and R 92 are bonded to each other to form a fluorene structure.

[0688] In one embodiment, Ring A 91 and Ring A 92 are each independently a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, for example, a substituted or unsubstituted benzene ring.

[0689] In one embodiment, Ring A 93 is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, for example, a substituted or unsubstituted benzene ring. In one embodiment, X9 is an oxygen atom or a sulfur atom.

[0690] Specific examples of the compound represented by the general formula (9) include the compounds shown below.

[0691] [ka]

[0692] [ka]

[0693] [ka]

[0694] [ka]

[0695] (Compound represented by general formula (10)) The compound represented by the general formula (10) will be described.

[0696] [ka]

[0697] [ka]

[0698] (In the general formula (10), Ring Ax1 is a ring represented by general formula (10a) which is fused to an adjacent ring at any position, Ring Ax2 is a ring represented by general formula (10b) which is fused to an adjacent ring at any position, In the general formula (10b), two * are bonded to any positions of the Ax3 ring, X A and X B are each independently C(R 1003 )(R 1004 ), Si(R 1005 )(R 1006 ), an oxygen atom or a sulfur atom; The Ax3 ring is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, or A substituted or unsubstituted heterocycle having 5 to 50 ring atoms, Ar 1001 teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R 1001 ~R 1006 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, mx1 is 3 and mx2 is 2, Multiple R 1001 are identical or different from each other, Multiple R 1002 are identical or different from each other, ax is 0, 1 or 2; When ax is 0 or 1, the structures in the brackets shown in "3-ax" are the same or different from each other, If ax is 2, multiple Ar 1001 are either identical or different.)

[0699] In one embodiment, Ar 1001 represents a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms.

[0700] In one embodiment, ring Ax3 is a substituted or unsubstituted aromatic hydrocarbon ring having 6 to 50 ring carbon atoms, for example, a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring, or a substituted or unsubstituted anthracene ring.

[0701] In one embodiment, R 1003 and R 1004 are each independently a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms.

[0702] In one embodiment, ax is 1.

[0703] Specific examples of the compound represented by the general formula (10) include the compounds shown below.

[0704] [ka]

[0705] In one embodiment, the first dopant material of the first emitting layer and the second dopant material of the second emitting layer are each independently a compound selected from the group consisting of a compound represented by general formula (4), a compound represented by general formula (5), a compound represented by general formula (7), a compound represented by general formula (8), a compound represented by general formula (9), and a compound represented by the following general formula (63a):

[0706] [ka]

[0707] (In the general formula (63a), R 631 is R 646 may be linked to form a substituted or unsubstituted heterocyclic ring, or may not form a substituted or unsubstituted heterocyclic ring. R 633 is R 647 may be linked to form a substituted or unsubstituted heterocyclic ring, or may not form a substituted or unsubstituted heterocyclic ring. R 634 is R 651 may be linked to form a substituted or unsubstituted heterocyclic ring, or may not form a substituted or unsubstituted heterocyclic ring. R 641 is R 642 may be linked to form a substituted or unsubstituted heterocyclic ring, or may not form a substituted or unsubstituted heterocyclic ring. R 631 ~R 651 At least one pair of two or more adjacent joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R does not form the substituted or unsubstituted heterocycle, does not form the monocycle, and does not form the fused ring. 631 ~R 651 are each independently Hydrogen atom, Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, provided that R does not form the substituted or unsubstituted heterocycle, does not form the monocycle, and does not form the condensed ring; 631 ~R 651 At least one of the Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0708] In one embodiment, the compound represented by the general formula (4) is a compound represented by the general formula (41-3), (41-4), or (41-5), and the A1 ring in the general formula (41-5) is a substituted or unsubstituted fused aromatic hydrocarbon ring having 10 to 50 ring carbon atoms, or a substituted or unsubstituted fused heterocycle having 8 to 50 ring atoms.

[0709] In one embodiment, the substituted or unsubstituted fused aromatic hydrocarbon ring having 10 to 50 ring carbon atoms in the general formulae (41-3), (41-4), and (41-5) is a substituted or unsubstituted naphthalene ring; a substituted or unsubstituted anthracene ring, or a substituted or unsubstituted fluorene ring; The substituted or unsubstituted fused heterocycle having 8 to 50 ring atoms is a substituted or unsubstituted dibenzofuran ring; a substituted or unsubstituted carbazole ring, or It is a substituted or unsubstituted dibenzothiophene ring.

[0710] In one embodiment, the substituted or unsubstituted fused aromatic hydrocarbon ring having 10 to 50 ring carbon atoms in the general formula (41-3), the general formula (41-4), or the general formula (41-5) is a substituted or unsubstituted naphthalene ring, or a substituted or unsubstituted fluorene ring; The substituted or unsubstituted fused heterocycle having 8 to 50 ring atoms is a substituted or unsubstituted dibenzofuran ring; a substituted or unsubstituted carbazole ring, or It is a substituted or unsubstituted dibenzothiophene ring.

[0711] In one embodiment, the compound represented by the general formula (4) is A compound represented by the following general formula (461): A compound represented by the following general formula (462): A compound represented by the following general formula (463): A compound represented by the following general formula (464): A compound represented by the following general formula (465): A compound represented by the following general formula (466): The compound is selected from the group consisting of compounds represented by the following general formula (467):

[0712] [ka]

[0713] [ka]

[0714] [ka]

[0715] [ka]

[0716] [ka]

[0717] (In the general formulae (461) to (467), R 421 ~R 427 , R 431 ~R 436 , R 440 ~R 448 and R 451 ~R 454At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring, or Not bonded to each other, R 437 , R 438 and R which does not form a single ring and does not form a condensed ring. 421 ~R 427 , R 431 ~R 436 , R 440 ~R 448 and R 451 ~R 454 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R 901 )(R 902 )(R 903 ) a group represented by -O-(R 904 ) a group represented by -S-(R 905 ) a group represented by -N(R 906 )(R 907 ) a group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, X4 is an oxygen atom, NR 801 , or C(R 802 )(R 803 ) and R 801 , R 802 and R 803 are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, R 801 If there are multiple R 801 are the same or different from each other, R 802 If there are multiple R 802 are the same or different from each other, R 803 If there are multiple R 803 are either identical or different.)

[0718] In one embodiment, R 421 ~R 427 and R 440 ~R 448 However, each independently, Hydrogen atom, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0719] In one embodiment, R 421 ~R 427 and R 440 ~R 447 However, each independently, Hydrogen atom, a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, and It is selected from the group consisting of substituted or unsubstituted heterocyclic groups having 5 to 18 ring atoms.

[0720] In one embodiment, the compound represented by the general formula (41-3) is a compound represented by the following general formula (41-3-1):

[0721] [ka]

[0722] (In the above general formula (41-3-1), R 423 , R 425 , R 426 , R 442 , R 444 and R 445 each independently represents R in the general formula (41-3). 423 , R 425 , R 426 , R 442 , R 444 and R 445 is equivalent to

[0723] In one embodiment, the compound represented by the general formula (41-3) is a compound represented by the following general formula (41-3-2):

[0724] [ka]

[0725] (In the above general formula (41-3-2), R 421 ~R 427 and R 440 ~R 448 each independently represents R in the general formula (41-3). 421 ~R 427 and R 440 ~R 448 is synonymous with However, R 421 ~R 427 and R 440 ~R 446 At least one of -N(R 906 )(R 907 ) is a group represented by the formula:

[0726] In one embodiment, in the formula (41-3-2), R 421 ~R 427 and R 440 ~R 446 Any two of -N(R 906 )(R 907 ) is a group represented by the formula:

[0727] In one embodiment, the compound represented by formula (41-3-2) is a compound represented by formula (41-3-3):

[0728] [ka]

[0729] (In the above general formula (41-3-3), R 421 ~R 424 , R 440 ~R 443 , R 447 and R 448 each independently represents R in the general formula (41-3). 421 ~R 424 , R 440 ~R 443 , R 447 and R 448 is synonymous with R A , R B , R C and R D are each independently a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms, or It is a substituted or unsubstituted heterocyclic group having 5 to 18 ring atoms.

[0730] In one embodiment, the compound represented by formula (41-3-3) is a compound represented by formula (41-3-4):

[0731] [ka]

[0732] (In the above general formula (41-3-4), R 447 , R 448 , R A , R B , R C and R D each independently represents R in the formula (41-3-3). 447 , R 448 , R A , R B , R C and R D is equivalent to

[0733] In one embodiment, R A , R B , R C and R D each independently represents a substituted or unsubstituted aryl group having 6 to 18 ring carbon atoms.

[0734] In one embodiment, R A , R B , R C and R D are each independently a substituted or unsubstituted phenyl group.

[0735] In one embodiment, R 447 and R 448 is a hydrogen atom.

[0736] In one embodiment, the substituent in the case of "substituted or unsubstituted" in each of the above formulas is an unsubstituted alkyl group having 1 to 50 carbon atoms; an unsubstituted alkenyl group having 2 to 50 carbon atoms, an unsubstituted alkynyl group having 2 to 50 carbon atoms, an unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms; -Si(R 901a )(R 902a )(R 903a ), -O-(R 904a ), -S-(R 905a ), -N(R 906a )(R 907a ), Halogen atoms, Cyano group, Nitro group, an unsubstituted aryl group having 6 to 50 ring carbon atoms, or an unsubstituted heterocyclic group having 5 to 50 ring atoms, R 901a ~R 907a are each independently Hydrogen atom, an unsubstituted alkyl group having 1 to 50 carbon atoms; an unsubstituted aryl group having 6 to 50 ring carbon atoms, or an unsubstituted heterocyclic group having 5 to 50 ring atoms, R 901a If there are two or more, there are two or more R 901a are identical or different from each other, R 902a If there are two or more, there are two or more R 902a are identical or different from each other, R 903a If there are two or more, there are two or more R 903a are identical or different from each other, R 904a If there are two or more, there are two or more R 904a are identical or different from each other, R 905a If there are two or more, there are two or more R 905a are identical or different from each other, R 906a If there are two or more, there are two or more R 906a are identical or different from each other, R 907a If there are two or more, there are two or more R 907a are the same as or different from each other.

[0737] In one embodiment, the substituent in the case of "substituted or unsubstituted" in each of the above formulas is an unsubstituted alkyl group having 1 to 50 carbon atoms; an unsubstituted aryl group having 6 to 50 ring carbon atoms, or It is an unsubstituted heterocyclic group having 5 to 50 ring atoms.

[0738] In one embodiment, the substituent in the case of "substituted or unsubstituted" in each of the above formulas is an unsubstituted alkyl group having 1 to 18 carbon atoms; an unsubstituted aryl group having 6 to 18 ring carbon atoms, or It is an unsubstituted heterocyclic group having 5 to 18 ring atoms.

[0739] Second Embodiment An organic electroluminescence element according to the second embodiment will be described. In the description of the second embodiment, the same components as those in the first embodiment will be omitted or simplified by using the same reference numerals or names. In the second embodiment, for materials and compounds not specifically mentioned, the same materials and compounds as those described in the first embodiment can be used. In the organic EL element according to the second embodiment, a first organic layer is disposed between the anode and the light-emitting layer disposed on the anode side of the first and second light-emitting layers. The organic EL element according to the second embodiment differs from the organic EL element according to the first embodiment in that it is specified to have a predetermined first organic layer, but is otherwise similar to the organic EL element according to the first emb...

Claims

1. an anode, a cathode, a first light-emitting layer, and a second light-emitting layer; the first light-emitting layer and the second light-emitting layer are disposed between the anode and the cathode; the first light-emitting layer comprises a first host material, a first organic material, and a first dopant material; the second light-emitting layer comprises a second host material and a second dopant material; the first host material, the first organic material, and the second host material are compounds having structures different from each other, The first dopant material and the second dopant material are compounds having the same structure or different structures; The first host material, the first organic material, the second host material, the first dopant material, and the second dopant material satisfy the relationships of the following mathematical formulas (Mathematical Formula 1), (Mathematical Formula 2), (Mathematical Formula 3), (Mathematical Formula 5), ​​and (Mathematical Formula 6): Organic electroluminescent element. T １ (H1)>T １ (H3) …(number 1) T １ (H2)>T １ (H3) …(number 2) T １ (D1)>T １ (H1) …(number 3) S １ (H1)>S １ (D1) …(Number 5) S １ (H2)>S １ (D1)…(Number 6) (In the above formulas (1), (2), (3), (5) and (6), T １ (H1) is the triplet energy (unit: eV) of the first host material, T １ (H2) is the triplet energy (unit: eV) of the first organic material, T １ (H3) is the triplet energy (unit: eV) of the second host material, T １ (D1) is the triplet energy (unit: eV) of the first dopant material; S １ (H1) is the singlet energy (unit: eV) of the first host material, S １ (H2) is the singlet energy (unit: eV) of the first organic material, S １ (D1) is the singlet energy (unit: eV) of the first dopant material.

2. 2. The organic electroluminescence device according to claim 1, The triplet energy T of the first organic material １ (H2) and the triplet energy T of the first dopant material １ (D1) satisfies the relationship of the following formula (Formula 4), Organic electroluminescent element. T １ (D1)>T １ (H2) …(Number 4)

3. The organic electroluminescence device according to claim 1 or 2, The first host material satisfies the relationship of the following formula (7), and the first organic material satisfies the relationship of the following formula (8), Organic electroluminescent element. ΔFWHM(H1)=HWF(H1)−HWS(H1)≦15…(Math. 7) ΔFWHM(H2)=HWF(H2)−HWS(H2)≦15…(Math. 8) (In the above formulas (7) and (8), HWF(H1) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the film of the first host material, HWS(H1) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the solution of the first host material, ΔFWHM(H1) is the difference between HWF(H1) and HWS(H1), HWF(H2) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the film of the first organic material, HWS(H2) is the half-width (unit: nm) of the peak in the photoluminescence spectrum of the solution of the first organic material, ΔFWHM(H2) is the difference between HWF(H2) and HWS(H2).

4. The organic electroluminescence device according to claim 3 , The first host material does not satisfy the relationship of the formula (7), The first organic material satisfies the relationship of the above formula (Formula 8). Organic electroluminescent element.

5. The organic electroluminescence device according to any one of claims 1 to 4, The first host material and the first organic material satisfy the relationship of the following formula (Mathematical Formula 9): Organic electroluminescent element. Ip(H1)≧Ip(H2)...(Math. 9) (In the formula (Mathematical Formula 9), Ip(H1) is the ionization potential (unit: eV) of the first host material, and Ip(H2) is the ionization potential (unit: eV) of the first organic material.)

6. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (21): Organic electroluminescent element. 【Chemistry 1】 (In the general formula (21), L Ａ１ , L Ｂ１ , and L Ｃ１ are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 18 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 13 ring atoms, A １ , B １ , and C １ are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, or -Si(R ９２１ ) (R ９２２ ) (R ９２３ ) is a group represented by R ９２１ , R ９２２ and R ９２３ each independently represents a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, R ９２１ When there are multiple R ９２１ are identical or different from each other, R ９２２ When there are multiple R ９２２ are identical or different from each other, R ９２３ When there are multiple R ９２３ are the same or different from each other.)

7. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (22): Organic electroluminescent element. 【Chemistry 2】 (In the general formula (22), A ２１ and A ２２ are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, Y ５ ~Y ８ one of the carbon atoms is bonded to *1, Y ９ ~Y １２ One of the carbon atoms is bonded to *2, Y １ ~Y ４ , Y １３ ~Y １６ , *1 is not a carbon atom bonded to Y ５ ~Y ８ and Y which is not a carbon atom bonded to *2 ９ ~Y １２ are each independently ２０ and R ２０ When there are multiple R ２０ one or more pairs of adjacent two or more of R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. ２０ are each independently Hydrogen atom, Cyano group, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by -O-(R ９０４ ) a group represented by Halogen atoms, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, L ２１ and L ２２ are each independently Single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or It is a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms. (In the first organic material, R ９０１ , R ９０２ , R ９０３ and R ９０４ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ９０１ When there are multiple R ９０１ are the same or different from each other, R ９０２ When there are multiple R ９０２ are the same or different from each other, R ９０３ When there are multiple R ９０３ are the same or different from each other, R ９０４ When there are multiple R ９０４ are the same or different from each other.)

8. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (23): Organic electroluminescent element. 【Chemistry 3】 (In the general formula (23), R ２３０１ ~R ２３１０ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by -O-(R ９０４ ) a group represented by -S-(R ９０５ ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, -C(=O)R ８０１ A group represented by -COOR ８０２ A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (231), When a plurality of groups represented by the general formula (231) are present, the plurality of groups represented by the general formula (231) are the same or different from each other, L ２３１ teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar ２３１ teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, m23 is 1, 2, 3, 4 or 5; L ２３１ When there are two or more, there are two or more L ２３１ are identical or different from each other, Ar ２３１ When two or more are present, two or more Ar ２３１ are identical or different from each other, When the compound represented by the general formula (231) contains a plurality of pyrene rings in its molecule, at least one of the plurality of pyrene rings has a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms, In the general formula (231), * indicates the bonding position with the pyrene ring in the general formula (23). (In the first organic material, R ９０１ , R ９０２ , R ９０３ , R ９０４ , R ９０５ , R ８０１ and R ８０２ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ９０１ When there are multiple R ９０１ are the same or different from each other, R ９０２ When there are multiple R ９０２ are the same or different from each other, R ９０３ When there are multiple R ９０３ are the same or different from each other, R ９０４ When there are multiple R ９０４ are the same or different from each other, R ９０５ When there are multiple R ９０５ are the same or different from each other, R ８０１ When there are multiple R ８０１ are the same or different from each other, R ８０２ When there are multiple R ８０２ are the same or different from each other.)

9. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (24): Organic electroluminescent element. 【Chemistry 4】 (In the general formula (24), R ２４０１ ~R ２４１２ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by -O-(R ９０４ ) a group represented by -S-(R ９０５ ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, -C(=O)R ８０１ A group represented by -COOR ８０２ A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (241), However, R ２４０１ ~R ２４１２ at least one of is a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms, When a plurality of groups represented by the general formula (241) are present, the plurality of groups represented by the general formula (241) are the same or different from each other, L ２４１ teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar ２４１ teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, m ２４ is 1, 2, 3, 4 or 5, L ２４１ When there are two or more, there are two or more L ２４１ are identical or different from each other, Ar ２４１ When two or more are present, two or more Ar ２４１ are identical or different from each other, In the general formula (241), * indicates the bonding position with the benz[a]anthracene ring in the general formula (24). (In the first organic material, R ９０１ , R ９０２ , R ９０３ , R ９０４ , R ９０５ , R ８０１ and R ８０２ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ９０１ When there are multiple R ９０１ are the same or different from each other, R ９０２ When there are multiple R ９０２ are the same or different from each other, R ９０３ When there are multiple R ９０３ are the same or different from each other, R ９０４ When there are multiple R ９０４ are the same or different from each other, R ９０５ When there are multiple R ９０５ are the same or different from each other, R ８０１ When there are multiple R ８０１ are the same or different from each other, R ８０２ When there are multiple R ８０２ are the same or different from each other.)

10. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (25): Organic electroluminescent element. 【Chemistry 5】 (In the general formula (25), R ２５０１ ~R ２５１０ At least one pair of adjacent pairs of joined together to form a substituted or unsubstituted monocyclic ring, or combine with each other to form a substituted or unsubstituted fused ring; R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. ２５０１ ~R ２５１０ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by -O-(R ９０４ ) a group represented by -S-(R ９０５ ) a group represented by a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, -C(=O)R ８０１ A group represented by -COOR ８０２ A group represented by Halogen atoms, Cyano group, Nitro group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, or A group represented by the general formula (251), However, when the substituted or unsubstituted monocyclic ring has a substituent, the substituent when the substituted or unsubstituted condensed ring has a substituent, and R ２５０１ ~R ２５１０ at least one of the above is a substituted or unsubstituted alkyl group having 3 to 50 carbon atoms; When a plurality of groups represented by the general formula (251) are present, the plurality of groups represented by the general formula (251) are the same or different from each other, L ２５１ teeth, Single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted divalent heterocyclic group having 5 to 50 ring atoms, Ar ２５１ teeth, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, m ２５ is 1, 2, 3, 4 or 5, L ２５１ When there are two or more, there are two or more L ２５１ are identical or different from each other, Ar ２５１ When two or more are present, two or more Ar ２５１ are identical or different from each other, In the general formula (251), * indicates the bonding position to the ring represented by the general formula (25). (In the first organic material, R ９０１ , R ９０２ , R ９０３ , R ９０４ , R ９０５ , R ８０１ and R ８０２ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ９０１ When there are multiple R ９０１ are the same or different from each other, R ９０２ When there are multiple R ９０２ are the same or different from each other, R ９０３ When there are multiple R ９０３ are the same or different from each other, R ９０４ When there are multiple R ９０４ are the same or different from each other, R ９０５ When there are multiple R ９０５ are the same or different from each other, R ８０１ When there are multiple R ８０１ are the same or different from each other, R ８０２ When there are multiple R ８０２ are the same or different from each other.)

11. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (26): Organic electroluminescent element. 【Chemistry 6】 (In the general formula (26), R ２６０１ ~R ２６０３ are each independently Hydrogen atom, Halogen atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted halogenated alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, -O-(R ９０４ ) a group represented by -S-(R ９０５ ) a group represented by -N(R ９０６ ) (R ９０７ ) a group represented by a substituted or unsubstituted aralkylamino group having 7 to 60 carbon atoms, -C(=O)R ８０１ A group represented by Cyano group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ２６０６ ~R ２６１０ one or more pairs of adjacent two or more of R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. ２６０６ and R ２６１０ are each independently A hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; R does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring. ２６０７ ~R ２６０９ are each independently Hydrogen atom, Halogen atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted halogenated alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, -O-(R ９０４ ) a group represented by -S-(R ９０５ ) a group represented by -N(R ９０６ ) (R ９０７ ) a group represented by a substituted or unsubstituted aralkylamino group having 7 to 60 carbon atoms, -C(=O)R ８０１ A group represented by Cyano group, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, However, R ２６０８ and R ２６０９ or R ２６０８ and R ２６０７ does not form the substituted or unsubstituted monocyclic ring and does not form the substituted or unsubstituted condensed ring, ２６０７ ~R ２６０９ At least one of a substituted or unsubstituted 9-carbazolyl group, a substituted or unsubstituted azacarbazolyl group having 2 to 5 nitrogen atoms, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted phenyl group, or is a substituted biphenyl group, The substituted phenyl group and the substituted biphenyl group each independently represent a substituted or unsubstituted 9-carbazolyl group, a substituted or unsubstituted azacarbazolyl group having 2 to 5 nitrogen atoms, a substituted or unsubstituted dibenzofuranyl group, and at least one group selected from the group consisting of substituted or unsubstituted dibenzothiophenyl groups; However, R ２６０８ and R ２６０９ or R ２６０８ and R ２６０７ and R ２６０７ ~R ２６０９ is not bound to the benzene ring to form a carbazolyl group, R ２６０７ ~R ２６０９ is a substituted or unsubstituted dibenzofuranyl group or a substituted or unsubstituted dibenzothiophenyl group, R ２６０１ ~R ２６０３ is a hydrogen atom, R ２６０１ ~R ２６０３ and R ２６０６ ~R ２６１０ Each of the substituents does not have a polymerizable functional group at its terminal, X ２６ is a sulfur atom or an oxygen atom.) (In the first organic material, R ９０４ , R ９０５ , R ９０６ , R ９０７ , and R ８０１ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ９０４ When there are multiple R ９０４ are the same or different from each other, R ９０５ When there are multiple R ９０５ are the same or different from each other, R ９０６ When there are multiple R ９０６ are the same or different from each other, R ９０７ When there are multiple R ９０７ are the same or different from each other, R ８０１ When there are multiple R ８０１ are the same or different from each other.)

12. The organic electroluminescence device according to any one of claims 1 to 5, The first organic material is a compound represented by the following general formula (27) or general formula (28): Organic electroluminescent element. 【Chemistry 7】 【Chemistry 8】 (In the general formula (27) and general formula (28), Ar ２７１ , Ar ２７２ and Ar ２７３ are each independently a substituted or unsubstituted aromatic hydrocarbon group having 6 ring carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 6 ring atoms, However, Ar ２７１ , Ar ２７２ and Ar ２７３ may have one or more substituents Y, and the multiple substituents Y may be the same or different from each other, The substituent Y is an alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, an aralkyl group having 7 to 50 carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by -O-(R ９０４ ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or Ar ２７１ , Ar ２７２ and Ar ２７３ is a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms and connected via a carbon-carbon bond to any one of X ２７１ , X ２７２ , X ２７３ and X ２７４ each independently represents an oxygen atom, a sulfur atom, or N-R ２７１ Or CR ２７２ R ２７３ and R ２７１ , R ２７２ and R ２７３ are each independently an alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, an aralkyl group having 7 to 50 carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms, r, p and q each independently represent 0 or 1; s is 1, 2 or 3; n is 2, 3, or 4, ２７３ is a dimer, trimer, or tetramer having a linking group However, X ２７１ and X ２７２ Both are N-R ２７１ and r and p are 0 and q is 1; or ２７１ and X ２７３ Both are N-R ２７１ When p and q are 0 and r is 1, at least one R ２７１ represents a substituted or unsubstituted monovalent fused aromatic heterocyclic group having 8 to 24 ring atoms, L ２７１ teeth, Single bond, an alkylene group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a divalent silyl group or a divalent substituted silyl group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or Ar ２７１ a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; L ２７２ teeth, Single bond, an alkylene group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a divalent silyl group or a divalent substituted silyl group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or Ar ２７３ a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; However, X ２７１ and X ２７２ Both are CR ２７２ R ２７３ r and p are 0, q is 1, and L ２７１ and L ２７２ are both substituted or unsubstituted arylene groups having 6 to 50 ring carbon atoms, or X ２７１ and X ２７３ Both are CR ２７２ R ２７３ where p and q are 0, r is 1, and L ２７１ and L ２７２ are both substituted or unsubstituted arylene groups having 6 to 50 ring carbon atoms, ２７１ and L ２７２ At the same time, Ar ２７２ There is no case where it is connected to the parallel position. When n is 2, L ２７３ teeth, Single bond, an alkylene group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 50 ring carbon atoms, a divalent silyl group or a divalent substituted silyl group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, or Ar ２７３ a substituted or unsubstituted divalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; When n is 3, L ２７３ teeth, a trivalent saturated hydrocarbon group having 1 to 50 carbon atoms, a substituted or unsubstituted trivalent cyclic saturated hydrocarbon group having 3 to 50 ring carbon atoms, a trivalent silyl group or a trivalent substituted silyl group having 1 to 20 carbon atoms, a substituted or unsubstituted trivalent aromatic hydrocarbon group having 6 to 50 ring carbon atoms, or Ar ２７３ and a substituted or unsubstituted trivalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; When n is 4, L ２７３ teeth, a tetravalent saturated hydrocarbon group having 1 to 50 carbon atoms, a substituted or unsubstituted tetravalent cyclic saturated hydrocarbon group having 3 to 50 ring carbon atoms, Silicon atom, a substituted or unsubstituted tetravalent aromatic hydrocarbon group having 6 to 50 ring carbon atoms, or Ar ２７３ and a substituted or unsubstituted tetravalent heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; However, X ２７１ and X ２７２ Both are CR ２７２ R ２７３ r and p are 0, q is 1, and L ２７１ and L ２７３ are both substituted or unsubstituted divalent, trivalent or tetravalent aromatic hydrocarbon groups having 6 to 50 ring carbon atoms, or X ２７１ and X ２７３ Both are CR ２７２ R ２７３ where p and q are 0, r is 1, and L ２７１ and L ２７３ are both substituted or unsubstituted divalent, trivalent or tetravalent aromatic hydrocarbon groups having 6 to 50 ring carbon atoms, ２７１ and L ２７３ At the same time, Ar ２７２ There is no case where it is connected to the parallel position. A ２７１ teeth, Hydrogen atom, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or L ２７１ and a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond, provided that L ２７１ is an alkylene group having 1 to 50 carbon atoms, ２７１ is not a hydrogen atom, A ２７２ teeth, Hydrogen atom, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, -Si(R ９０１ ) (R ９０２ ) (R ９０３ ) a group represented by a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or L ２７２ a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms connected via a carbon-carbon bond; However, L ２７２ is an alkylene group having 1 to 50 carbon atoms, ２７２ is not a hydrogen atom, and furthermore, X ２７１ and X ２７２ is an oxygen atom, a sulfur atom, or CR ２７２ R ２７３ r and p are 0, q is 1, and L ２７１ and L ２７２ are both single bonds, and A ２７１ and A ２７２ are both hydrogen atoms, or X ２７１ and X ２７３ is an oxygen atom, a sulfur atom, or CR ２７２ R ２７３ where p and q are 0, r is 1, and L ２７１ and L ２７２ are both single bonds, and A ２７１ and A ２７２ When both are hydrogen atoms, Ar ２７２ has one or more substituents Y, and the substituent Y is not a methyl group or an unsubstituted phenyl group, A ２７１ , A ２７２ , L ２７１ , L ２７２ and L ２７３ does not contain a carbonyl group, The general formula (27) is not a structure represented by the following general formula (271): The general formula (28) is not a structure represented by the following general formula (281). 【Chemistry 9】 (In the general formula (271), X ２７１ , X ２７２ , A ２７１ , A ２７２ , L ２７１ and L ２７２ is X in the general formula (27). ２７１ , X ２７２ , A ２７１ , A ２７２ , L ２７１ and L ２７２ is synonymous with Y ２７１ , Y ２７２ and Y ２７３ are each independently an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aralkyl group having 7 to 24 carbon atoms, a silyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 24 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms which is connected to any one of the benzene rings a, b, and c via a carbon-carbon bond; d and f are 3, and e is 2. 【Chemistry 10】 (In the general formula (281), X ２７１ , X ２７２ , A ２７１ , L ２７１ , L ２７３ and n are each the X in the general formula (28). ２７１ , X ２７２ , A ２７１ , L ２７１ , L ２７３ and n are synonymous therewith; Y ２７１ , Y ２７２ and Y ２７３ are each independently an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aralkyl group having 7 to 24 carbon atoms, a silyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 24 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 24 ring atoms which is connected to any one of the benzene rings a, b, and c via a carbon-carbon bond; d and f are 3, and e is 2. (In the first organic material, R ９０１ , R ９０２ , R ９０３ , and R ９０４ are each independently Hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, R ９０１ When there are multiple R ９０１ are the same or different from each other, R ９０２ When there are multiple R ９０２ are the same or different from each other, R ９０３ When there are multiple R ９０３ are the same or different from each other, R ９０４ When there are multiple R ９０４ are the same or different from each other.)

13. The organic electroluminescence device according to any one of claims 1 to 12, In the first emitting layer, the total mass M of the first host material and the first organic material Ｔ and the mass M of the first host material. １ and satisfy the relationship of the following formula (Formula 11): Organic electroluminescent element. 50≦(M １ / M Ｔ )×100<100…(Number 11)

14. The organic electroluminescence device according to any one of claims 1 to 13, The first dopant material is a compound that exhibits emission having a maximum peak wavelength of 500 nm or less. Organic electroluminescent element.

15. The organic electroluminescence device according to any one of claims 1 to 14, The first dopant material is not a complex. Organic electroluminescent element.

16. The organic electroluminescence device according to any one of claims 1 to 15, The first dopant material is contained in the first light-emitting layer in an amount of more than 1.1% by mass. Organic electroluminescent element.

17. The organic electroluminescence device according to any one of claims 1 to 16, The second dopant material is a compound that exhibits emission having a maximum peak wavelength of 500 nm or less. Organic electroluminescent element.

18. The organic electroluminescence device according to any one of claims 1 to 17, The triplet energy T of the second dopant material １ (D2) and the triplet energy T of the second host material １ (H3) satisfies the relationship of the following formula (Formula 12), Organic electroluminescent element. T １ (D2)>T １ (H3) …(number 12)

19. The organic electroluminescence device according to any one of claims 1 to 18, The singlet energy S of the second host material １ (H3) and the singlet energy S of the second dopant material １ (D2) satisfies the relationship of the following formula (Formula 13): Organic electroluminescent element. S １ (H3)>S １ (D2)…(Number 13)

20. The organic electroluminescence device according to any one of claims 1 to 19, The second dopant material is not a complex. Organic electroluminescent element.

21. The organic electroluminescence device according to any one of claims 1 to 20, The second dopant material is contained in the second light-emitting layer in an amount of more than 1.1% by mass. Organic electroluminescent element.

22. The organic electroluminescence device according to any one of claims 1 to 21, the first light-emitting layer is disposed between the anode and the second light-emitting layer; Organic electroluminescent element.

23. The organic electroluminescence device according to any one of claims 1 to 22, a hole transport layer is included between the anode and one of the first light-emitting layer and the second light-emitting layer that is disposed on the anode side, Organic electroluminescent element.

24. The organic electroluminescence device according to any one of claims 1 to 23, an electron transport layer is included between the cathode and one of the first and second light-emitting layers that is disposed on the cathode side; Organic electroluminescent element.

25. The organic electroluminescence device according to any one of claims 1 to 24, The first light-emitting layer emits light having a maximum peak wavelength of 500 nm or less when the device is driven. Organic electroluminescent element.

26. The organic electroluminescence device according to any one of claims 1 to 25, The second light-emitting layer emits light having a maximum peak wavelength of 500 nm or less when the device is driven. Organic electroluminescent element.

27. The organic electroluminescence device according to any one of claims 1 to 26, The organic electroluminescence element emits light having a maximum peak wavelength of 500 nm or less when the element is driven. Organic electroluminescent element.

28. The organic electroluminescence device according to any one of claims 1 to 27, the first light-emitting layer and the second light-emitting layer are in direct contact with each other; Organic electroluminescent element.

29. An electronic device comprising the organic electroluminescence element according to any one of claims 1 to 28.

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