ORGANOMETAL COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME

Abstract

To provide an organometallic compound and an organic electroluminescent element including the same.SOLUTION: Provided are an organometallic compound represented by the following formula and an organic electroluminescent element including the same. In the following formula, M11 is platinum or the like.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an organometallic compound and an organic electroluminescent device containing the same. [Background technology]

[0002] An organic light emitting device is a self-emitting device that has a wider viewing angle, better contrast, shorter response time, and superior luminance, driving voltage, and response speed characteristics compared to conventional devices, and is capable of multiple colors.

[0003] The organic electroluminescent device may have a structure in which a first electrode is disposed on a substrate, and a hole transport region, a light emitting layer, an electron transport region, and a second electrode are sequentially disposed on the first electrode. Holes injected from the first electrode move to the light emitting layer via the hole transport region, and electrons injected from the second electrode move to the light emitting layer via the electron transport region. Carriers such as holes and electrons recombine in the light emitting layer region to generate excitons. Light is generated when the excitons change from an excited state to a ground state. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Korean Patent Publication No. 10-2015-0043225 Summary of the Invention [Problem to be solved by the invention]

[0005] One of the problems to be solved by the present invention is to provide a novel organometallic compound for use in an organic electroluminescent device, and an organic electroluminescent device containing the same. [Means for solving the problem]

[0006] According to one embodiment, there is provided an organometallic compound represented by the following chemical formula 1: [ka] ...(chemical formula 1) In Chemical Formula 1, M 11 is selected from platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), iridium (Ir), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb) and thulium (Tm); A 10 is (i) a 5-membered heterocyclic group, or (ii) C 3 -C 60 Carbocyclic groups and C 1 -C 60 at least one of the heterocyclic groups is a condensed 5-membered heterocyclic group, A 20 , A 30 and A 40 are independent of each other, C 5 -C 60 Carbocyclic groups and C 1 -C 60 heterocyclic groups, X 11 and X 12 are independent of each other, N(R 50 ) b50 , O or S; Y 20 , Y 30 and Y 40 are, independently of each other, N or C, Y 21 , Y 22 , Y 31 , Y 32 , Y 41 and Y 42 are, independently of each other, N or C, T 11 ~T 14are independently selected from a coordinate bond, a covalent bond, *-O-*' and *-S-*', L 11 ~L 14 are each independently a single bond, *-O-*', *-S-*', *-C(R 1 )(R 2 )-*', *-C(R 1 )=*', *=C(R 1 )-*', *-C(R 1 )=C(R 2 )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R 1 )-*', *-N(R 1 )-*', *-P(R 1 )-*', *-Si(R 1 )(R 2 )-*', *-P(R 1 )(R 2 )-*' and *-Ge(R 1 )(R 2 )-*', a11 to a14 are each independently selected from the group consisting of 0, 1, 2, 3, 4, and 5; R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 Alkyl groups, substituted or unsubstituted C 2 -C 60 Alkenyl groups, substituted or unsubstituted C 2 -C 60 Alkynyl groups, substituted or unsubstituted C 1 -C 60 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted C 1 -C 60 Heteroaryloxy groups, substituted or unsubstituted C 1 -C 60 Heteroarylthio group, substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ), R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 Two or more of the adjacent C groups are selectively bonded to each other, and substituted or unsubstituted C 5 -C 60 Carbocyclic group or substituted or unsubstituted C 1 -C 60 can form a heterocyclic group, b10, b20, b30 and b40 are independently selected from 1, 2, 3, 4, 5, 6, 7 and 8; b50 is 0 or 1, * and *' are the bond positions to adjacent atoms, The above substituted C 1 -C 60 Alkyl groups, substituted C 2 -C 60 Alkenyl groups, substituted C 2 -C 60 Alkynyl groups, substituted C 1 -C 60 Alkoxy groups, substituted C 3 -C 10 Cycloalkyl groups, substituted C 1 -C 10 Heterocycloalkyl groups, substituted C 3 -C 10 Cycloalkenyl groups, substituted C 1 -C 10 Heterocycloalkenyl Groups, Substituted C 6 -C 60 Aryl groups, substituted C 6 -C 60 Aryloxy groups, substituted C 6 -C 60 Arylthio groups, substituted C 1 -C 60 The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 3 -C10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 ), -N(Q 11 )(Q 12 ), -B(Q 11 )(Q 12 ), -C(=O)(Q 11 ), -S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12 ) replaced with at least one selected from 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1-C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 21 )(Q 22 )(Q 23 ), -N(Q 21 )(Q 22 ), -B(Q 21 )(Q 22 ), -C(=O)(Q 21 ), -S(=O) 2 (Q 21 ) and -P(=O)(Q 21 )(Q 22 ) replaced with at least one selected from 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; and -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ); The aforementioned Q 1 ~Q 3 , Q 11 ~Q 13 , Q 21 ~Q 23 , and Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, C 1 -C 60 Heteroaryloxy group, C 1 -C 60 C substituted with at least one selected from the group consisting of a heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic heterocyclic condensed polycyclic group, deuterium, -F, and a cyano group 1 -C 60 C substituted with at least one selected from the group consisting of an alkyl group, a deuterium, -F, and a cyano group 6 -C 60 It is selected from the group consisting of aryl, biphenylyl, and terphenylyl groups.

[0007] According to another embodiment, a liquid crystal display device includes a first electrode, a second electrode facing the first electrode, and an organic layer including a light-emitting layer interposed between the first electrode and the second electrode, An organic electroluminescent device is provided that includes one or more organometallic compounds represented by the above Chemical Formula 1. Effect of the Invention

[0008] An organic electroluminescent device including an organometallic compound according to an embodiment of the present invention may have a low driving voltage, high brightness, high efficiency, high color purity, and long life. [Brief description of the drawings]

[0009] [Figure 1] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. [Diagram 2] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. [Diagram 3] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. [Figure 4] 1 is a schematic diagram illustrating a structure of an organic electroluminescent device according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [General definition of substituents] In this specification, C 1 -C 60 The alkyl group means a linear or branched aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, and specific examples include a methyl group, an ethyl group, a propyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a pentyl group, an iso-amyl group, and a hexyl group. 1 -C 60 The alkylene group is the C 1 -C 60 It means a divalent group having the same structure as an alkyl group.

[0011] In this specification, C 2 -C 60 The alkenyl group is the C 2 -C 60 It means a hydrocarbon group containing one or more carbon double bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethenyl group, a propenyl group, and a butenyl group. 2 -C 60 The alkenylene group is the C 2 -C 60 It means a divalent group having the same structure as an alkenyl group.

[0012] In this specification, C 2 -C 60 The alkynyl group is the C 2 -C 60 It means a hydrocarbon group containing one or more carbon triple bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethynyl group, a propynyl group, and the like. 2 -C 60 The alkynylene group is the C 2 -C 60 It means a divalent group having the same structure as an alkynyl group.

[0013] In this specification, C 1 -C60 The alkoxy group is -OA. 101 (Here, A 101 is the aforementioned C 1 -C 60 Specific examples of the aryl group include methoxy, ethoxy, and isopropyloxy groups.

[0014] In this specification, C 3 -C 10 Cycloalkyl groups are C 3 -C 10 It means a monovalent saturated hydrocarbon monocyclic group, and specific examples thereof include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and the like. 3 -C 10 The cycloalkylene group is the C 3 -C 10 It means a divalent group having the same structure as a cycloalkyl group.

[0015] In this specification, C 1 -C 10 The heterocycloalkyl group is a C alkyl group containing at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom. 1 -C 10 Specific examples of the cyclic ring include a 1,2,3,4-oxatriazolidinyl group, a tetrahydrofuranyl group, and a tetrahydrothiophenyl group. 1 -C 10 The heterocycloalkylene group is the C 1 -C 10 It means a divalent group having the same structure as a heterocycloalkyl group.

[0016] In this specification, C 3 -C 10 The cycloalkenyl group is C 3 -C 10It means a monovalent monocyclic group having at least one double bond in the ring but not having aromaticity, and specific examples thereof include a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group. 3 -C 10 The cycloalkenylene group is the above-mentioned C 3 -C 10 It means a divalent group having the same structure as a cycloalkenyl group.

[0017] In this specification, C 1 -C 10 The heterocycloalkenyl group is a C alkyl group containing at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom. 1 -C 10 It is a monovalent monocyclic group having at least one double bond in the ring. 1 -C 10 Specific examples of the heterocycloalkenyl group include a 4,5-dihydro-1,2,3,4-oxatriazolyl group, a 2,3-dihydrofuranyl group, and a 2,3-dihydrothiophenyl group. 1 -C 10 The heterocycloalkenylene group is the C 1 -C 10 It means a divalent group having the same structure as a heterocycloalkenyl group.

[0018] In this specification, C 6 -C 60 The aryl group is C 6 -C 60 means a monovalent radical having a carbocyclic aromatic system, C 6 -C 60 The arylene group is C 6 -C 60 C means a divalent group having a carbocyclic aromatic system. 6 -C 60 Specific examples of the aryl group include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthrenyl group, a pyrenyl group, and a chrysenyl group. 6 -C 60 Aryl groups and C 6 -C60 When an arylene group contains two or more rings, the two or more rings may be fused together.

[0019] In this specification, C 1 -C 60 The heteroaryl group contains at least one heteroatom selected from N, O, Si, P and S as a ring-forming atom, and 1 -C 6 means a monovalent group having a heterocyclic aromatic system, C 1 -C 60 The heteroarylene group contains at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom, and 1 -C 6 C means a divalent group having a heterocyclic aromatic system. 1 -C 60 Specific examples of the heteroaryl group include a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, and an isoquinolinyl group. 1 -C 60 Heteroaryl groups and C 1 -C 60 When a heteroarylene group contains two or more rings, the two or more rings may be fused together.

[0020] In this specification, C 6 -C 60 The aryloxy group is -OA. 102 (Here, A 102 is the aforementioned C 6 -C 60 aryl group), C 6 -C 60 The arylthio group is -SA 103 (Here, A 103 is the aforementioned C 6 -C 60 aryl group).

[0021] In this specification, the monovalent non-aromatic condensed polycyclic group means a monovalent group (e.g., having 8 to 60 carbon atoms) in which two or more rings are condensed with each other, the ring-forming atoms are only carbon atoms, and the entire molecule has non-aromaticity. Specific examples of the monovalent non-aromatic condensed polycyclic group include a fluorenyl group. In this specification, the divalent non-aromatic condensed polycyclic group means a divalent group having the same structure as the above-mentioned monovalent non-aromatic condensed polycyclic group.

[0022] In this specification, the monovalent non-aromatic hetero-condensed polycyclic group means a monovalent group (e.g., having 1 to 60 carbon atoms) in which two or more rings are condensed with each other, and which contains at least one heteroatom selected from N, O, Si, P, and S as a ring-forming atom other than carbon, and the entire molecule has non-aromaticity. Specific examples of the monovalent non-aromatic hetero-condensed polycyclic group include a carbazolyl group. In this specification, the divalent non-aromatic hetero-condensed polycyclic group means a divalent group having the same structure as the above-mentioned monovalent non-aromatic hetero-condensed polycyclic group.

[0023] In this specification, C 4 -C 60 A carbocyclic group refers to a monocyclic or polycyclic group having 4 to 60 carbon atoms and containing only carbon as ring-forming atoms. 4 -C 60 A carbocyclic group is an aromatic or non-aromatic carbocyclic group. 4 -C 60 A carbocyclic group may be a ring, such as benzene, a monovalent group, such as a phenyl group, or a divalent group, such as a phenylene group. 4 -C 60 Depending on the number of substituents attached to the carbocyclic group, 4 -C 60 The carbocyclic group can be variously modified, such as being a trivalent or tetravalent group.

[0024] In this specification, C 2 -C 60 The heterocyclic group is the above-mentioned C 4 -C 60It has the same structure as a carbocyclic group, but contains at least one heteroatom selected from N, O, Si, P, and S in addition to carbon (having 2 to 60 carbon atoms) as ring-forming atoms.

[0025] As used herein, the aforementioned substituted C 4 -C 60 Carbocyclic groups, substituted C 2 -C 60 Heterocyclic groups, substituted C 3 -C 10 Cycloalkylene groups, substituted C 1 -C 10 Heterocycloalkylene groups, substituted C 3 -C 10 Cycloalkenylene groups, substituted C 1 -C 10 Heterocycloalkenylene groups, substituted C 6 -C 60 Arylene Groups, Substituted C 1 -C 60 Heteroarylene groups, substituted divalent nonaromatic condensed polycyclic groups, substituted divalent nonaromatic condensed heteropolycyclic groups, substituted C 1 -C 60 Alkyl groups, substituted C 2 -C 60 Alkenyl groups, substituted C 2 -C 60 Alkynyl groups, substituted C 1 -C 60 Alkoxy groups, substituted C 3 -C 10 Cycloalkyl groups, substituted C 1 -C 10 Heterocycloalkyl groups, substituted C 3 -C 10 Cycloalkenyl groups, substituted C 1 -C 10 Heterocycloalkenyl Groups, Substituted C 6 -C 60 Aryl groups, substituted C 6 -C 60 Aryloxy groups, substituted C 6 -C 60 Arylthio groups, substituted C1 -C 60 The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 11 )(Q 12 )(Q 13 ), -N(Q 11 )(Q 12 ), -B(Q 11 )(Q 12 ), -C(=O)(Q 11 ), -S(=O) 2 (Q 11 ) and -P(=O)(Q 11 )(Q 12 ) replaced with at least one selected from 1 -C 60 Alkyl group, C 2 -C60 Alkenyl group, C 2 -C 60 Alkynyl groups and C 1 -C 60 Alkoxy groups; C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q21 )(Q 22 )(Q 23 ), -N(Q 21 )(Q 22 ), -B(Q 21 )(Q 22 ), -C(=O)(Q 21 ), -S(=O) 2 (Q 21 ) and -P(=O)(Q 21 )(Q 22 ) replaced with at least one selected from 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups and monovalent non-aromatic condensed heteropolycyclic groups; and -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ); The aforementioned Q 11 ~Q 13 , Q 21 ~Q 23 , and Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 1 -C 60 C substituted with at least one selected from the group consisting of a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic hetero-condensed polycyclic group, deuterium, -F, and a cyano group. 1 -C 60 C substituted with at least one selected from an alkyl group, a deuterium, -F, and a cyano group 6 -C 60 It is selected from the group consisting of aryl groups, biphenylyl groups, and terphenylyl groups.

[0026] As used herein, "Ph" means a phenyl group, "Me" means a methyl group, "Et" means an ethyl group, "ter-Bu" or "But" means a tert-butyl group, and "OMe" means a methoxy group.

[0027] In the present specification, the term "biphenylyl group" means a "phenyl group substituted with a phenyl group." A "biphenylyl group" is a group in which the substituent is "C 6 -C 60 It belongs to the "substituted phenyl group" which is an "aryl group."

[0028] In the present specification, the term "terphenylyl group" means a "phenyl group substituted with a biphenylyl group". 6 -C 60Aryl-substituted C 6 -C 60 It belongs to the "substituted phenyl group" which is an "aryl group."

[0029] In this specification, *, *' and *" refer to the bond positions to adjacent atoms in the chemical formula, unless otherwise defined.

[0030] The organometallic compound according to one embodiment of the present invention is represented by the following chemical formula 1. [ka] ...(chemical formula 1)

[0031] In Chemical Formula 1, M 11 is selected from platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), iridium (Ir), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), and thulium (Tm).

[0032] According to one embodiment, M 11 may be selected from Pt, Pd, Cu, Ag, Au, Rh, Ir, Ru and Os. For example, M 11 may be Pt.

[0033] In Chemical Formula 1, A 10 is (i) a 5-membered heterocyclic group, or (ii) C 3 -C 60 Carbocyclic groups and C 1 -C 60 At least one of the heterocyclic groups is a fused 5-membered heterocyclic group.

[0034] According to one embodiment, A 10 may be (i) a 5-membered heterocyclic group, (ii) a 5-membered heterocyclic group fused with a 6-membered carbocyclic group, or (iii) a 5-membered heterocyclic group fused with a 6-membered heterocyclic group.

[0035] According to one embodiment, A 10 may be a group represented by any one selected from the following chemical formulas A10-1 to A10-7. [ka]

[0036] In Chemical Formulae A10-1 to A10-7, X 11 and X 12 are each as described herein, Y 11 is O, S, N(R 11 ) or C(R 11 )(R 12 ) and X 13 is N or C(R 13 ), and X 14 is N or C(R 14 ), and X 15 is N or C(R 15 ), and X 16 is N or C(R 16 ), and X 17 is N or C(R 17 ), and X 18 is N or C(R 18 ), and X 19 is N or C(R 19 ) and R 11 ~R 19 The explanations for each are independent of each other and are described later in R 10 Please refer to the explanation about.

[0037] In Chemical Formula 1, A 20 , A 30 and A 40 are independent of each other, C 5 -C 60 Carbocyclic groups and C 1 -C 60 The heterocyclic group is selected from the group consisting of aryl, ... and heterocyclic groups.

[0038] According to one embodiment, A 20 , A 30 and A 40 are each independently a benzene ring, a naphthalene ring, an anthracene ring, a phenanthrene ring, a triphenylene ring, a pyrene ring, a chrysene ring, a cyclopentadiene ring, a 1,2,3,4-tetrahydronaphthalene ring, a furan ring, a thiophene ring, a silole ring, an indene ring, a pullolene ring, an indole ring, a carbazole ring, a benzofuran ring, a dibenzofuran ring, a benzothiophene ring, a dibenzothiophene ring, a benzosilole ring, a dibenzosilole ring, an indenopyridine ring, an indolopyridine ring, a benzofuropyridine ring, a benzothienopyridine ring, a benzosilolopyridine ring, an indenopyrimidine ring, an indolopyrimidine ring, a benzofuropyrimidine ring, a benzothienopyrimidine ring, a benzosilolopyrimidine ring, a dihydropyridine ring, a pyridine ring, a pyrimidine ring, a pyrazine ring, a pyridazine ring, a triazine ring, a quinoline ring, an isoquinoline ring, a quinox The ring structure may be selected from a sarin ring, a quinazoline ring, a phenanthroline ring, a pyrrole ring, a pyrazole ring, an imidazole ring, a 2,3-dihydroimidazole ring, a triazole ring, a 2,3-dihydrotriazole ring, an oxazole ring, an isoxazole ring, a thiazole ring, an isothiazole ring, an oxadiazole ring, a thiadiazole ring, a benzopyrazole ring, a benzimidazole ring, a 2,3-dihydrobenzimidazole ring, an imidazopyridine ring, a 2,3-dihydroimidazopyridine ring, an imidazopyrimidine ring, a 2,3-dihydroimidazopyrimidine ring, an imidazopyrazine ring, a 2,3-dihydroimidazopyrazine ring, a benzoxazole ring, a benzothiazole ring, a benzoxadiazole ring, a benzothiadiazole ring, a 5,6,7,8-tetrahydroisoquinoline ring, and a 5,6,7,8-tetrahydroquinoline ring.

[0039] According to one embodiment, A 20 , A 30 and A 40 are each independently selected from groups represented by any one of the following Chemical Formulas 2-1 to 2-43. [ka] [ka] [ka] [ka] [ka]

[0040] In Chemical Formula 2-1 to Chemical Formula 2-43, X 21 ~X 23 are independent of each other, C(R 24 ) and C-*, 21 ~X 23 At least two of the above are C-*. X 24 is N-*, and X 25 and X 26 are independent of each other, C(R 24 ) and C-*, 25 and X 26 At least one of the above is C-*, X 27 and X 28 are independent of each other, N, N(R 25 ) and N-*, 29 is C(R 24 ) and C-*, 27 and X 28 At least one of them is N-*, and X 29 is C-* or ii) X 27 and X 28 is N-*, and X 29 is C(R 24 ), R 21 ~R 25 are each independently R20 Please refer to the explanation of b21 is selected from 1, 2 and 3; b22 is selected from 1, 2, 3, 4 and 5; b23 is selected from 1, 2, 3 and 4; b24 is selected from 1 and 2; * indicates the bond position to the adjacent atom.

[0041] According to one embodiment, A 20 is N (nitrogen)-containing C 1 -C 60 It may be a heterocyclic group.

[0042] According to one embodiment, A 20 may be a group represented by any one of the above-mentioned Chemical Formula 2-10 to Chemical Formula 2-43.

[0043] According to one embodiment, A 20is a pyrrole ring, a pyrazole ring, an imidazole ring, a 2,3-dihydroimidazole ring, a triazole ring, a 2,3-dihydrotriazole ring, an oxazole ring, an isoxazole ring, a thiazole ring, an isothiazole ring, an oxadiazole ring, a thiadiazole ring, a benzopyrazole ring, a benzimidazole ring, a 2,3-dihydrobenzimidazole ring, an imidazopyridine ring, a 2,3-dihydroimidazopyridine ring, an imidazopyrimidine ring, a 2,3-dihydroimidazopyrimidine ring, an imidazopyrazine ring, a 2,3-dihydroimidazopyrazine ring, a benzoxazole ring, a benzothiazole ring, a benz and the like. The ring structure may be selected from the group consisting of a benzoxadiazole ring, a benzothiadiazole ring, a pyridine ring, a pyrimidine ring, a pyrazine ring, a pyridazine ring, a triazine ring, a quinoline ring, an isoquinoline ring, a quinoxaline ring, a quinazoline ring, a phenanthroline ring, a pyrrole ring, a pyrazole ring, an imidazole ring, an imidazopyridine ring, a 2,3-dihydroimidazopyridine ring, an imidazopyrimidine ring, a 2,3-dihydroimidazopyrimidine ring, an imidazopyrazine ring, a 2,3-dihydroimidazopyrazine ring, a 5,6,7,8-tetrahydroisoquinoline ring, and a 5,6,7,8-tetrahydroquinoline ring.

[0044] For example, A 20 may be a ring structure selected from a pyrrole ring, a pyrazole ring, an imidazole ring, a triazole ring, and a pyridine ring.

[0045] According to one embodiment, A 30 and A 40 may each independently be a group represented by any one of the above-mentioned Chemical Formula 2-1 to Chemical Formula 2-9.

[0046] For example, 30 and A 40 may each independently be a ring structure selected from a benzene ring, a pyridine ring, a pyrimidine ring, and a triazine ring.

[0047] In Chemical Formula 1, X 11 and X 12 are independent of each other, N(R50 ) b50 , O or S.

[0048] According to one embodiment, X 11 is N(R 50 ) b50 Here, b50 is 0 or 1. For example, X 11 is N or N(R 50 ).

[0049] According to one embodiment, X 11 may be O or S.

[0050] According to one embodiment, X 12 may be O or S.

[0051] According to one embodiment, X 11 and X 12 may be identical to each other. Also, according to one embodiment, X 11 and X 12 may be different from each other.

[0052] In Chemical Formula 1, Y 20 , Y 30 and Y 40 are, independently of each other, N or C.

[0053] According to one embodiment, Y 20 and Y 30 is C and Y 40 may be N, and Y 20 and Y 40 is C and Y 30 may be N, or Y 30 and Y 40 is C and Y 20 may be N.

[0054] According to one embodiment, Y 20 , Y 30 and Y 40 is C.

[0055] According to one embodiment, Y 40 is C and Y 20 and Y 30 may be N, and Y 40 is N and Y 20 and Y 30 may be C, or Y 20 is C and Y 30 and Y 40 may be N.

[0056] According to one embodiment, Y 20 is N and Y 30 and Y 40 may be C, and Y 30 is C and Y 20 and Y 40 may be N, or Y 30 is N and Y 20 and Y 40 may be C.

[0057] In Chemical Formula 1, Y 21 , Y 22 , Y 31 , Y 32 , Y 41 and Y 42 are, independently of each other, N or C.

[0058] In Chemical Formula 1, T 11 ~T 14 are each independently selected from a coordinate bond, a covalent bond, *-O-*' and *-S-*'.

[0059] T 11 may be a coordinate bond or a covalent bond. 12 may be a coordinate bond or a covalent bond. 13 may be a coordinate bond or a covalent bond. 14 may be a coordinate bond or a covalent bond.

[0060] According to one embodiment, T 11 ~T 14 are coordinate or covalent bonds, respectively.

[0061] According to one embodiment, T 11 is selected from *-O-*' and *-S-*', T 12 ~T 14 is a coordinate bond or a covalent bond.

[0062] According to one embodiment, T 12 is selected from *-O-*' and *-S-*', T 11 , T 13 and T 14 is a coordinate bond or a covalent bond.

[0063] According to one embodiment, T 13 is selected from *-O-*' and *-S-*', T 11 , T 12 and T 14 is a coordinate bond or a covalent bond.

[0064] According to one embodiment, T 14 is selected from *-O-*' and *-S-*', T 11 , T 12 and T 13 is a coordinate bond or a covalent bond.

[0065] According to one embodiment, T 11 ~T 14 Any two of the bonds may be coordinate bonds and the remaining two may be covalent bonds. As a result, the organometallic compound of the present disclosure does not have a salt form consisting of a cation and an anion, and can be electrically neutral.

[0066] According to one embodiment, T 11 and T 12 is a coordinate bond, and T 13 and T 14 are each covalent bonds.

[0067] According to one embodiment, T 11 and T 13 is a coordinate bond, and T12 and T 14 are each covalent bonds.

[0068] In Chemical Formula 1, L 11 ~L 14 are each independently a single bond, *-O-*', *-S-*', *-C(R 1 )(R 2 )-*', *-C(R 1 )=*', *=C(R 1 )-*', *-C(R 1 )=C(R 2 )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R 1 )-*', *-N(R 1 )-*', *-P(R 1 )-*', *-Si(R 1 )(R 2 )-*', *-P(R 1 )(R 2 )-*' and *-Ge(R 1 )(R 2 )-*' is selected.

[0069] According to one embodiment, L 11 ~L 14 are each independently a single bond, *-O-*', *-S-*', *-N(R 1 )-*', *-C(R 1 )(R 2 )-*', *-Si(R 1 )(R 2 )-*' and *-B(R 1 )-*' is selected.

[0070] According to one embodiment, L 12 is a single bond and *-N(R 1 )-*' is selected.

[0071] According to one embodiment, L 13 is selected from *-O-*' and *-S-*'.

[0072] According to one embodiment, L 14is a single bond and *-N(R 1 )-*'. For example, L 14 may be a single bond.

[0073] In Chemical Formula 1, a11 to a14 are each independently selected from the group consisting of 0, 1, 2, 3, 4 and 5.

[0074] According to one embodiment, a11 may be 0. When a11 is 0, A 10 and A 20 do not bond to each other.

[0075] According to one embodiment, the aforementioned a12 to a14 are each independently 1 or 2. For example, the aforementioned a12 to a14 may each be 1.

[0076] In Chemical Formula 1, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 are each independently hydrogen, deuterium (-D), -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 Alkyl groups, substituted or unsubstituted C 2 -C 60 Alkenyl groups, substituted or unsubstituted C 2 -C 60 Alkynyl groups, substituted or unsubstituted C 1 -C 60 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted C 1 -C 60 Heteroaryloxy groups, substituted or unsubstituted C 1 -C 60 Heteroarylthio groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ), and -P(=S)(Q 1 )(Q 2 ) is selected.

[0077] According to one embodiment, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a cyano group, C 1 -C 20 Alkyl group and C 1 -C 20Alkoxy groups; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a cyano group, a phenyl group, and a biphenylyl group; 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; Cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, phenyl, biphenylyl, terphenylyl, pentalenyl, indenyl, naphthyl, azulenyl, indacenyl, acenaphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentacenyl, pyrroly a phenyl group, a thiophenyl group, a furanyl group, a silolyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, an indolyl group, an isoindolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, an isoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a benzoquinoxalinyl group, a quinazolinyl group, a benzoquinazolinyl group, a cinnolinyl group, a phenanyl group, acridinyl group, aphenanthrolinyl group, aphenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, benzosilolyl group, benzothiazolyl group, benzisothiazolyl group, benzoxazolyl group, benzisoxazolyl group, triazolyl group, tetrazolyl group, thiadiazolyl group, oxadiazolyl group, triazinyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, naphthobenzofuranyl group, naphthobenzothiophenyl group nyl group, naphthobenzosilolyl group, dibenzocarbazolyl group, dinaphthofuranyl group, dinaphthothiophenyl group, dinaphthosilolyl group, imidazopyridinyl group, imidazopyrimidinyl group, oxazolopyridinyl group, thiazolopyridinyl group, benzonaphthyridinyl group, azafluorenyl group, azaspiro-bifluorenyl group, azacarbazolyl group, azadibenzofuranyl group, azadibenzothiophenyl group, azadibenzosilolyl group, indenopyrrolyl group, indolopyrrolyl group, indenocarbazolyl group and indolocarbazolyl group; Deuterium, -F, -Cl, -Br, -I, cyano group, C 1 -C20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, pentalenyl group, indenyl group, naphthyl group, azulenyl group, indacenyl group, acenaphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenalenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentacenyl group, pyrrolyl group, thiophenyl group, furanyl group, silolyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, indolyl group, isoindolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, isoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cinnolinyl group, phenanyl group, anthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, benzosilolyl group, benzothiazolyl group, benzisothiazolyl group, benzoxazolyl group, benzisoxazolyl group, triazolyl group, tetrazolyl group, thiadiazolyl group, oxadiazolyl group, triazinyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, dibenzosilolyl group, benzocarbazolyl group, naphthobenzofuranyl group, naphthobenzothiophenyl group -Si(Q) group, naphthobenzosilolyl group, dibenzocarbazolyl group, dinaphthofuranyl group, dinaphthothiophenyl group, dinaphthosilolyl group, imidazopyridinyl group, imidazopyrimidinyl group, oxazolopyridinyl group, thiazolopyridinyl group, benzonaphthyridinyl group, azafluorenyl group, azaspiro-bifluorenyl group, azacarbazolyl group, azadibenzofuranyl group, azadibenzothiophenyl group, azadibenzosilolyl group, indenopyrrolyl group, indolopyrrolyl group, indenocarbazolyl group, indolocarbazolyl group, -Si(Q) group,31 )(Q 32 )(Q 33 )、-N(Q 31 )(Q 32 )、-B(Q 31 )(Q 32 )、-C(=O)(Q 31 )、-S(=O)(Q 31 )、-S(=O) 2 (Q 31 )、-P(=O)(Q 31 )(Q 32 ) and -P(=S)(Q 31 )(Q 32a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a phenyl group, a biphenylyl group, a terphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, or a chrysenyl group, each of which is substituted with at least one selected from the group consisting of Perylenyl group, pentacenyl group, pyrrolyl group, thiophenyl group, furanyl group, silolyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, indolyl group, isoindolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, isoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, benzoquinoxalinyl group, quinazolinyl group, benzoquinazolinyl group, cyano group, acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, a benzosilolyl group, a benzothiazolyl group, a benzoisothiazolyl group, a benzoxazolyl group, a benzoisoxazolyl group, a triazolyl group, a tetrazolyl group, a thiadiazolyl group, an oxadiazolyl group, a triazinyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a dibenzosilolyl group, a benzocarbazolyl group, a naphthobenzofuranyl group, a naphthobenzo thiophenyl, naphthobenzosilolyl, dibenzocarbazolyl, dinaphthofuranyl, dinaphthothiophenyl, dinaphthosilolyl, imidazopyridinyl, imidazopyrimidinyl, oxazolopyridinyl, thiazolopyridinyl, benzonaphthyridinyl, azafluorenyl, azaspiro-bifluorenyl, azacarbazolyl, azadibenzofuranyl, azadibenzothiophenyl, azadibenzosilolyl, indenopyrrolyl, indolopyrrolyl, indenocarbazolyl and indolocarbazolyl groups; and -Si(Q 1)(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(=O)(Q 1 ), -S(=O)(Q 1 ), -S(=O) 2 (Q 1 ), -P(=O)(Q 1 )(Q 2 ) and -P(=S)(Q 1 )(Q 2 ), Q 1 ~Q 3 , and Q 31 ~Q 33 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10 Cycloalkenyl group, C 1 -C 10 Heterocycloalkenyl group, C 6 -C 60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Heteroaryl groups, C 1 -C 60 Heteroaryloxy group, C 1 -C 60C substituted with at least one selected from the group consisting of a heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic heterocyclic condensed polycyclic group, deuterium, -F, and a cyano group 1 -C 60 C substituted with at least one selected from the group consisting of an alkyl group, a deuterium, -F, and a cyano group 6 -C 60 It is selected from the group consisting of aryl, biphenylyl, and terphenylyl groups.

[0078] According to one embodiment, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a cyano group, C 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a cyano group, a phenyl group, and a biphenylyl group; 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; and It is selected from groups represented by any one of the following Chemical Formulas 5-1 to 5-27 and 6-1 to 6-55. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0079] In Chemical Formulae 5-1 to 5-27 and Chemical Formulae 6-1 to 6-55, Y 3 is O, S, C(Z 34 )(Z 35 ), N(Z 34 ) or Si(Z 34 )(Z 35 ) and Z 31 ~Z 35 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkenyl group, C 1 -C 20 Alkynyl group, C 1 -C 20 selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, phenanthrenyl, anthracenyl, triphenylenyl, pyridinyl, pyrimidinyl, carbazolyl and triazinyl; e2 is 1 or 2, e3 is an integer selected from 1 to 3, e4 is an integer selected from 1 to 4; e5 is an integer selected from 1 to 5, e6 is an integer selected from 1 to 6, e7 is an integer selected from 1 to 7, e9 is an integer selected from 1 to 9, * indicates the bond position to the adjacent atom.

[0080] According to one embodiment, in Formula 1, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a cyano group, C 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a cyano group, a phenyl group, and a biphenylyl group; 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; phenyl, biphenylyl, terphenylyl, pentalenyl, indenyl, naphthyl, azulenyl, indacenyl, acenaphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, carbazolyl, acridinyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, and dibenzocarbazolyl groups; and Deuterium, -F, -Cl, -Br, -I, cyano group, C 1 -C 20 Alkyl group, C 1 -C 20alkoxy groups, phenyl groups, biphenylyl groups, terphenylyl groups, pentalenyl groups, indenyl groups, naphthyl groups, azulenyl groups, indacenyl groups, acenaphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, carbazolyl groups, acridinyl groups, dibenzofuranyl groups, dibenzothiophenyl groups, benzocarbazolyl groups, and dibenzocarbazolyl groups, each of which is substituted with at least one selected from alkoxy groups, phenyl groups, and biphenylyl groups.

[0081] In Chemical Formula 1, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 Two or more of the adjacent C groups are selectively bonded to each other, and substituted or unsubstituted C 5 -C 60 Carbocyclic group or substituted or unsubstituted C 1 -C 60 A heterocyclic group can be formed.

[0082] According to one example, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 two or more of which are selectively bonded to each other, and which are a cyclopentyl group, a cyclohexyl group, a phenyl group, a naphthyl group, a fluorenyl group, and a carbazolyl group; and Deuterium, -F, -Cl, -Br, -I, cyano group, C 1 -C 20 Alkyl group, C 1 -C 20 Any one group selected from the group consisting of a cyclopentyl group, a cyclohexyl group, a phenyl group, a naphthyl group, a fluorenyl group, and a carbazolyl group, substituted with at least one group selected from the group consisting of an alkoxy group, a phenyl group, and a biphenylyl group, can be formed.

[0083] Also, according to one example, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 Two or more adjacent groups among these can selectively be bonded to each other to form a cyclopentyl group, a cyclohexyl group, a phenyl group, a naphthyl group, a fluorenyl group, or a carbazolyl group.

[0084] Also, according to one example, R 1 , R 2 , R 10 , R 20 , R 30 , R 40 and R 50 Two or more adjacent groups among these can be selectively bonded to each other to form a cyclopentyl group, a cyclohexyl group, a fluorenyl group, or a carbazolyl group.

[0085] For example, R 1 and R 20 , R 1 and R 30 , and R 1 and R 40 may be bonded to each other to form a carbazolyl group.

[0086] In Chemical Formula 1, b10, b20, b30 and b40 are each independently selected from 1, 2, 3, 4, 5, 6, 7 and 8.

[0087] In Chemical Formula 1, b50 is 0 or 1.

[0088] According to one embodiment, the organometallic compound represented by Chemical Formula 1 may be a compound represented by any one selected from the following Chemical Formulas 1A to 1G. [ka] ...(chemical formula 1A) [ka] ...(chemical formula 1B) [ka] ...(chemical formula 1C) [ka] ...(chemical formula 1D) [ka] ...(chemical formula 1E) [ka] ...(chemical formula 1F) [ka] ...(chemical formula 1G)

[0089] In Chemical Formula 1A to Chemical Formula 1G, M 11 , A 20 , A 30 , A 40 , L 12 ~L 14 , a12~a14, X 11 , X 12 , Y 20 ~Y 22 , Y 30 ~Y 32 , Y 40 ~Y 42 , R 20 , R 30 , R 40 For the explanation of b20, b30, and b40, please refer to the descriptions in this specification. Y 11 is O, S, N(R 11 ) or C(R 11 )(R 12 ) and X 13 is N or C(R 13 ), and X 14 is N or C(R 14 ), and X 15 is N or C(R15 ), and X 16 is N or C(R 16 ), and X 17 is N or C(R 17 ), and X 18 is N or C(R 18 ), and X 19 is N or C(R 19 ) and R 11 ~R 19 The explanations for each are independent of each other, R 10 Please refer to the explanation about.

[0090] In Chemical Formula 1A to Chemical Formula 1D, Chemical Formula 1F, and Chemical Formula 1G, X 11 N(R 50 ) b50 In this case, b50 is 1. That is, in Chemical Formula 1A to Chemical Formula 1D, Chemical Formula 1F, and Chemical Formula 1G, X 11 N(R 50 ) b50 If so, then X11 is N(R 50 ) is shown.

[0091] In Chemical Formula 1E, X 11 N(R 50 ) b50 In the case where X is a 1-membered ring, b50 is 0. That is, in the case where X is a 1-membered ring, b50 is 0. 11 N(R 50 ) b50 If X 11 indicates N.

[0092] According to one embodiment, the organometallic compound represented by Chemical Formula 1 may be a compound represented by any one selected from the following Chemical Formulas 10-1 to 10-25. [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0093] In Chemical Formula 10-1 to Chemical Formula 10-25, M 11 , L 13 and R 50 For the description of each of the above, please refer to the descriptions in this specification. X, X' and X" are each independently O or S; R 11 ~R 14 The explanations for each are independent of each other, R 10 Please refer to the explanation of R 21 ~R 27 The explanations for each are independent of each other, R 20 Please refer to the explanation of R 31 ~R 36 The explanations for each are independent of each other, R 30 Please refer to the explanation of R 41 ~R 43 The explanations for each are independent of each other, R 40 Please refer to the explanation about.

[0094] According to one embodiment, the organometallic compound represented by Chemical Formula 1 may be selected from the following Compounds 1 to 86, but is not limited thereto. [ka] [ka] [ka] [ka] [ka]

[0095] The organometallic compound represented by the chemical formula 1 is A 10 In the ring, the B atom is A 40 The ligands include those having a structure bonded to the ring. 10 The ring is X 11 -BX 12 By including heteroatoms represented by 11 Therefore, when the organometallic compound is applied to an organic electroluminescent device, not only is it advantageous for energy transfer and the luminescent efficiency is high, but also high color purity can be achieved and the life characteristics are improved.

[0096] The organometallic compounds of the present disclosure can emit blue light. For example, the organometallic compounds can emit blue light (back-emission CIE 1000 nm) having a maximum emission wavelength of 400 nm or more and less than 500 nm, for example, a maximum emission wavelength of 410 nm or more and 490 nm or less. x,y The organometallic compound of the present disclosure can emit a blue light-emitting element having a color coordinate system of 0.15, 0.15 to 0.30, and thus the organometallic compound of the present disclosure can be usefully used in the preparation of an organic electroluminescent device that emits blue light. The wavelength of the light emitted by the organometallic compound of the present disclosure is not limited to the above-mentioned wavelength range.

[0097] Those skilled in the art will be able to recognize how to synthesize the organometallic compound represented by Chemical Formula 1 by referring to the examples provided below.

[0098] At least one of the organometallic compounds represented by Chemical Formula 1 may be used between a pair of electrodes of an organic electroluminescent device. For example, the organometallic compound may be included in an emission layer. The organometallic compound included in the emission layer may act as a dopant. Alternatively, the organometallic compound represented by Chemical Formula 1 may be used as a material for a capping layer located outside a pair of electrodes of an organic electroluminescent device.

[0099] Thus, there is provided an organic electroluminescent device comprising a first electrode, a second electrode opposed to the first electrode, and an organic layer interposed between the first electrode and the second electrode and including a light-emitting layer, the organic electroluminescent device comprising one or more organometallic compounds represented by Chemical Formula 1.

[0100] In this specification, "(the organic layer) contains one or more organometallic compounds" is interpreted as "(the organic layer) may contain one organometallic compound belonging to the category of Chemical Formula 1, or two or more different organometallic compounds belonging to the category of Chemical Formula 1."

[0101] For example, the organic layer may contain only the above-mentioned compound 1 as the organometallic compound of the present disclosure. In this case, compound 1 may be present in the light-emitting layer of the organic electroluminescent device. In addition, the organic layer may contain compound 1 and compound 2 as the organometallic compound of the present disclosure. In this case, compound 1 and compound 2 may be present in the same layer (e.g., compound 1 and compound 2 are both present in the light-emitting layer) or may be present in different layers (e.g., compound 1 is present in the light-emitting layer and compound 2 is present in the electron transport region).

[0102] According to one embodiment, The first electrode of the organic electroluminescent device is an anode, The second electrode of the organic electroluminescent device is a cathode, The organic layer further includes a hole transport region interposed between the first electrode and the light emitting layer, and an electron transport region interposed between the light emitting layer and the second electrode, The hole transport region includes a hole injection layer, a hole transport layer, a light-emitting assist layer, an electron blocking layer, or any combination thereof; The electron transport region may include a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0103] In this specification, the term "organic layer" refers to a single and / or multiple layers interposed between a first electrode and a second electrode in an organic electroluminescent device. The material contained in the "organic layer" is not limited to an organic material.

[0104] According to another embodiment, the light-emitting layer includes an organometallic compound represented by Chemical Formula 1, and the light-emitting layer further includes a host, and the content of the host in the light-emitting layer is greater than the content of the organometallic compound of the present disclosure in the light-emitting layer.

[0105] According to one embodiment, the hole transport region includes an electron blocking layer, which may include an organometallic compound of the present disclosure; or The electron transport region may include a hole blocking layer, and the hole blocking layer may include an organometallic compound of the present disclosure.

[0106] According to one embodiment, the hole transport region may include a p-dopant having a lowest unoccupied molecular orbital (LUMO) energy level less than or equal to -3.5 eV.

[0107] [Organic electroluminescent device 10] 1 is a schematic cross-sectional view of an organic electroluminescent device 10 according to one embodiment of the present invention. The organic electroluminescent device 10 includes a first electrode 110, an organic layer 150, and a second electrode 190.

[0108] Hereinafter, with reference to FIG. 1, a structure and a method for manufacturing an organic electroluminescent device 10 according to an embodiment of the present invention will be described.

[0109] [First electrode 110] 1, a substrate may be added or disposed below the first electrode 110 or above the second electrode 190. As the substrate, a glass substrate or a plastic substrate having excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and waterproofness may be used.

[0110] The first electrode 110 is formed by providing a first electrode material on the substrate using, for example, a deposition method or a sputtering method. When the first electrode 110 is an anode, the first electrode material is preferably selected from materials having a high work function so as to facilitate hole injection.

[0111] The first electrode 110 is a reflective electrode, a semi-transparent electrode, or a transparent electrode. To form the first electrode 110 as a transparent electrode, the material for the first electrode is selected from the group consisting of indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO 2 In order to form the first electrode 110, which is a semi-transmissive electrode or a reflective electrode, the material for the first electrode is selected from, but is not limited to, magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), and any combination thereof.

[0112] The first electrode 110 may have a single-layer structure, which is a single layer, or a multi-layer structure having multiple layers, for example, the first electrode 110 may have a three-layer structure of ITO / Ag / ITO, but is not limited thereto.

[0113] [Organic layer 150] The organic layer 150 is disposed on the first electrode 110. The organic layer 150 includes an emitting layer.

[0114] The organic layer 150 may further include a hole transport region interposed between the first electrode 110 and the light emitting layer, and an electron transport region interposed between the light emitting layer and the second electrode 190.

[0115] [Hole transport region in organic layer 150] The hole transport region can have i) a single layer structure made of a single material, ii) a single layer structure made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials.

[0116] The hole transport region may include at least one layer selected from a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting assist layer, and an electron blocking layer (EBL).

[0117] For example, the hole transport region may have a single layer structure made of multiple different materials, or a multi-layer structure of a hole injection layer / hole transport layer, a hole injection layer / hole transport layer / light emitting auxiliary layer, a hole injection layer / light emitting auxiliary layer, a hole transport layer / light emitting auxiliary layer, or a hole injection layer / hole transport layer / electron blocking layer, which are stacked in this order from the first electrode 110, but is not limited to these.

[0118] The hole transport region may include at least one selected from m-MTDATA, TDATA, 2-TNATA, NPB (NPD), β-NPB, TPD, spiro-TPD, spiro-NPB, methylated-NPB, TAPC, HMTPD, 4,4′,4″-tris(N-carbazolyl)triphenylamine (TCTA), polyaniline / dodecylbenzenesulfonic acid (PANI / DBSA), poly(3,4-ethylenedioxythiophene) / poly(4-styrenesulfonate) (PEDOT / PSS), polyaniline / camphorsulfonic acid (PANI / CSA), polyaniline / poly(4-styrenesulfonate) (PANI / PSS), a compound represented by the following formula 201, and a compound represented by the following formula 202. [ka] [ka] [ka] ...(chemical formula 201) [ka] ...(chemical formula 202)

[0119] In Chemical Formula 201 and Chemical Formula 202, L 201 ~L 204 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; L 205 *-O-*', *-S-*', *-N(Q 201 )-*', substituted or unsubstituted C 1 -C 20 Alkylene group, substituted or unsubstituted C 2 -C 20 Alkenylene group, substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xa1 to xa4 are each independently selected from integers of 0 to 3; xa5 is selected from an integer from 1 to 10; R 201 ~R 204 , and Q 201 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 It is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group.

[0120] For example, in formula 202, R 201 and R 202 may be optionally bonded to each other via a single bond, a dimethyl-methylene group or a diphenyl-methylene group, R 203 and R 204 may alternatively be bonded to each other via a single bond, a dimethyl-methylene group, or a diphenyl-methylene group.

[0121] According to one example, in formula 201 and formula 202, L 201 ~L 205 are independent of each other, a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a naphthacenylene group, a picenylene group, perylenylene groups, pentaphenylene groups, hexacenylene groups, pentacenylene groups, rubicenylene groups, coronenylene groups, ovalenylene groups, thiophenylene groups, furanylene groups, carbazolylene groups, indolylene groups, isoindolylene groups, benzofuranylene groups, benzothiophenylene groups, dibenzofuranylene groups, dibenzothiophenylene groups, benzocarbazolylene groups, dibenzocarbazolylene groups, dibenzosilolylene groups, and pyridinylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10 Phenyl groups substituted with alkyl groups, phenyl groups substituted with -F, pentalenyl groups, indenyl groups, naphthyl groups, azulenyl groups, heptalenyl groups, indacenyl groups, acenaphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, phenalenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, chrysenyl groups, naphthyl groups, Tacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q 31 )(Q 32 )(Q 33 ), and -N(Q 31 )(Q 32a phenylene group, a pentalenylene group, an indenylene group, a naphthylene group, an azulenylene group, a heptalenylene group, an indacenylene group, an acenaphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenalenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, or a naphthacenylene group, each of which is substituted with at least one selected from the group consisting of groups, picenylene groups, perylenylene groups, pentaphenylene groups, hexacenylene groups, pentacenylene groups, rubicenylene groups, coronenylene groups, ovalenylene groups, thiophenylene groups, furanylene groups, carbazolylene groups, indolylene groups, isoindolylene groups, benzofuranylene groups, benzothiophenylene groups, dibenzofuranylene groups, dibenzothiophenylene groups, benzocarbazolylene groups, dibenzocarbazolylene groups, dibenzosilolylene groups and pyridinylene groups; The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0122] According to another example, xa1 to xa4 may be 0, 1 or 2, independently of each other.

[0123] According to yet another example, xa5 may be 1, 2, 3 or 4.

[0124] According to yet another example, R 201 ~R 204 , and Q 201are each independently a phenyl group, a biphenylyl group, a terphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthalenyl group, phthalocenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10 Phenyl groups substituted with alkyl groups, phenyl groups substituted with -F, pentalenyl groups, indenyl groups, naphthyl groups, azulenyl groups, heptalenyl groups, indacenyl groups, acenaphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, phenalenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, chrysenyl groups, naphthyl groups, Tacenyl, picenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, rubicenyl, coronenyl, ovalenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, -Si(Q31 )(Q 32 )(Q 33 ), and -N(Q 31 )(Q 32 ), substituted with at least one selected from the group consisting of a phenyl group, a biphenylyl group, a terphenylyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a phenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, and a pyridinyl group; The aforementioned Q 31 ~Q 33 For the explanation of the above, please refer to the description in this specification.

[0125] According to yet another example, in formula 201, R 201 ~R 203 At least one of, independently of each other, fluorenyl, spiro-bifluorenyl, carbazolyl, dibenzofuranyl and dibenzothiophenyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10phenyl groups substituted with an alkyl group, phenyl groups substituted with -F, naphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, carbazolyl groups, dibenzofuranyl groups, and dibenzothiophenyl groups substituted with at least one selected from the group consisting of naphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, carbazolyl groups, dibenzofuranyl groups, and dibenzothiophenyl groups; but are not limited thereto.

[0126] According to yet another example, in formula 202, i) R 201 and R 202 may be bonded to each other via a single bond, and / or ii) R 203 and R 204 may be bonded to each other via a single bond.

[0127] According to yet another example, in formula 202, R 201 ~R 204 At least one of the Carbazolyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10 A phenyl group substituted with an alkyl group, a phenyl group substituted with -F, a carbazolyl group substituted with at least one selected from a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group; but is not limited to these.

[0128] The compound represented by formula 201 may be represented by the following formula 201A: [ka] ...(chemical formula 201A)

[0129] For example, the compound represented by chemical formula 201 may be represented by the following chemical formula 201A(1), but is not limited thereto. [ka] ...(chemical formula 201A(1))

[0130] As another example, the compound represented by formula 201 may be represented by the following formula 201A-1, but is not limited thereto. [ka] ...(chemical formula 201A-1)

[0131] On the other hand, the compound represented by chemical formula 202 may be represented by the following chemical formula 202A. [ka] ...(chemical formula 202A)

[0132] According to another example, the compound represented by formula 202 may be represented by formula 202A-1 below: [ka] ...(Chemical formula 202A-1)

[0133] In the chemical formula 201A, the chemical formula 201A(1), the chemical formula 201A-1, the chemical formula 202A and the chemical formula 202A-1, L 201 ~L 203 , xa1 to xa3, xa5, and R 202 ~R 204 For the description of R 211 and R 212 The explanation for R 203Please refer to the explanation of R 213 ~R 217 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, phenyl group, biphenylyl group, terphenylyl group, C 1 -C 10 Phenyl substituted with an alkyl group, phenyl substituted with -F, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl group, picenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, rubicenyl group, coronenyl group, ovalenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, and pyridinyl group.

[0134] The hole transport region may contain at least one compound selected from the following compounds HT1 to HT39, but is not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0135] The thickness of the hole transport region may be about 10 nm to about 1,000 nm, for example, about 10 nm to about 100 nm. If the hole transport region includes at least one layer of a hole injection layer and a hole transport layer, the thickness of the hole injection layer may be about 10 nm to about 900 nm, for example, about 10 nm to about 100 nm, and the thickness of the hole transport layer may be about 5 nm to about 200 nm, for example, about 10 nm to about 150 nm. When the thicknesses of the hole transport region, the hole injection layer, and the hole transport layer satisfy the above-mentioned ranges, sufficient hole transport properties can be obtained without a substantial increase in driving voltage.

[0136] The light-emitting auxiliary layer is a layer that compensates for the optical resonance distance according to the wavelength of light emitted from the light-emitting layer to increase light emission efficiency, and the electron blocking layer is a layer that prevents electron injection from the electron transport region. The light-emitting auxiliary layer and the electron blocking layer contain the above-mentioned materials.

[0137] [p-dopant] In addition to the materials described above, the hole transport region may further include a charge generating material to improve electrical conductivity. The charge generating material may be uniformly or non-uniformly dispersed in the hole transport region.

[0138] The charge generating material is, for example, a p-dopant.

[0139] According to one example, the LUMO of the p-dopant may be less than or equal to -3.5 eV.

[0140] The p-dopant may include at least one selected from the group consisting of quinone derivatives, metal oxides, and cyano group-containing compounds, but is not limited thereto.

[0141] For example, the p-dopant is Quinone derivatives such as tetracyanoquinodimethane (TCNQ) and 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ); Metal oxides such as tungsten oxide and molybdenum oxide; 1,4,5,8,9,12-Hexaazatriphenylene-hexacarbonitrile (HAT-CN); and The compound represented by the following chemical formula 221 may include at least one selected from the following, but is not limited thereto. [ka] ... <hat-cn>

change

[0142] In formula 221, R 221 ~R 223 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, 221 ~R 223 At least one of the C substituted with a cyano group, -F, -Cl, -Br, -I, or -F 1 -C 20 Alkyl group, C substituted with -Cl 1 -C 20 C substituted with alkyl group, -Br 1 -C 20 C substituted with alkyl groups and -I 1 -C 20 It has at least one substituent selected from the group consisting of alkyl groups.

[0143] [Light-emitting layer in organic layer 150] When the organic electroluminescent device 10 is a full-color organic electroluminescent device, the light-emitting layer may be patterned into a red light-emitting layer, a green light-emitting layer, and a blue light-emitting layer for each individual subpixel. In addition, the light-emitting layer may have a structure in which two or more layers selected from the red light-emitting layer, the green light-emitting layer, and the blue light-emitting layer are stacked in contact with each other or at a distance from each other, or may have a structure in which two or more materials selected from the red light-emitting material, the green light-emitting material, and the blue light-emitting material are mixed without layer division, and may emit white light.

[0144] The light-emitting layer may include a host and a dopant. The dopant may include at least one of a phosphorescent dopant and a fluorescent dopant. The phosphorescent dopant may include an organometallic compound represented by Chemical Formula 1 herein.

[0145] The content of the dopant in the light-emitting layer is generally selected from the range of about 0.01 to about 15 parts by weight per about 100 parts by weight of the host, but is not limited thereto.

[0146] The thickness of the light-emitting layer may be about 10 nm to about 100 nm, for example, about 20 nm to about 60 nm. When the thickness of the light-emitting layer satisfies the above-mentioned range, sufficient light-emitting characteristics can be exhibited without a substantial increase in driving voltage.

[0147] [Host in the light-emitting layer] The host may include a compound represented by formula 301 below. [Ar 301 ] xb11 -[(L 301 ) xb1 -R 301 ] xb21 ...(chemical formula 301)

[0148] In the chemical formula 301, Ar 301 is a substituted or unsubstituted C 5 -C 60 Carbocyclic group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, xb11 is 1, 2 or 3; L 301 is a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xb1 is selected from integers from 0 to 5; R 301 is deuterium, -F, -Cl, -Br, -I, hydroxyl, cyano, nitro, amidino, hydrazino, hydrazono, substituted or unsubstituted C 1 -C 60 Alkyl groups, substituted or unsubstituted C 2 -C 60 Alkenyl groups, substituted or unsubstituted C 2 -C 60 Alkynyl groups, substituted or unsubstituted C 1 -C 60 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 301 )(Q 302 )(Q 303 ), -N(Q 301 )(Q 302 ), -B(Q 301 )(Q 302 ), -C(=O)(Q 301 ), -S(=O) 2 (Q 301 ) and -P(=O)(Q 301 )(Q 302 ), xb21 is selected from integers from 1 to 5; Q 301 ~Q 303 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups, but is not limited thereto.

[0149] According to one example, Ar in formula 301 301 teeth, ring structures selected from: naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenalene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphene, indenoanthracene, dibenzofuran, and dibenzothiophene; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenalene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphene, indenoanthracene, dibenzofuran, and dibenzothiophene; Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups, but is not limited thereto.

[0150] In the chemical formula 301, when xb11 is 2 or more, 2 or more Ar 301 may be bonded to each other via a single bond.

[0151] According to another example, the compound represented by formula 301 is represented by the following formula 301-1 or formula 301-2: [ka] ...(chemical formula 301-1) [ka] ...(chemical formula 301-2)

[0152] In Chemical Formula 301-1 to Chemical Formula 301-2, A 301 ~A 304 are ring structures selected independently from benzene, naphthalene, phenanthrene, fluoranthene, triphenylene, pyrene, chrysene, pyridine, pyrimidine, indene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, indole, carbazole, benzocarbazole, dibenzocarbazole, furan, benzofuran, dibenzofuran, naphthofuran, benzonaphthofuran, dinaphthofuran, thiophene, benzothiophene, dibenzothiophene, naphthothiophene, benzonaphthothiophene and dinaphthothiophene, X 301 is O, S or N-[(L 304 ) xb4 -R 304 ], R 311 ~R 314 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ), xb22 and xb23 are independently 0, 1 or 2; L 301 , xb1, R 301 , and Q 31 ~Q 33 For the description of L 302 ~L 304 The explanations for each of the above are independent of each other. 301 Please refer to the explanation of For the explanation of xb2 to xb4, refer to the explanation of xb1 above, independently of each other. R 302 ~R 304 The explanations for each are independent of each other and are described above in R 301 Please refer to the explanation about.

[0153] For example, in Chemical Formula 301, Chemical Formula 301-1, and Chemical Formula 301-2, L 301 ~L 304 are independent of each other, Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group, pyridinylene group, imidazolylene group, pyrazolylene group, thiazolylene group , isothiazolylene groups, oxazolylene groups, isoxazolylene groups, thiadiazolylene groups, oxadiazolylene groups, pyrazinylene groups, pyrimidinylene groups, pyridazinylene groups, triazinylene groups, quinolinylene groups, isoquinolinylene groups, benzoquinolinylene groups, phthalazinylene groups, naphthyridinylene groups, quinoxalinylene groups, quinazolinylene groups, cinnolinylene groups, phenanthridinylene groups, acridinylene groups, phenanthrolinylene groups, phenazinylene groups, benzimidazolylene groups, isobenzothiazolylene groups, benzoxazolylene groups, isobenzoxazolylene groups, triazolylene groups, tetrazolylene groups, imidazopyridinylene groups, imidazopyrimidinylene groups, and azacarbazolylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazo -aryl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzoxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, azacarbazolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a phenylene group, a naphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a perylenylene group, a pentaphenylene group, a hexacenylene group, a pentacenylene group, a thiophenylene group, a furanylene group, a carbazolylene group, an indolylene group, an isoindolylene group, a benzofuranylene group, a benzothiophenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, a dibenzocarbazolylene group, a dibenzosilolylene group, a pyridinylene group, an imidazolylene group, or a pyrazolylene group, a thiazolylene group, an isothiazolylene group, an oxazolylene group, an isoxazolylene group, a thiadiazolylene group, an oxadiazolylene group, a pyrazinylene group, a pyrimidinylene group, a pyridazinylene group, a triazinylene group, a quinolinylene group, an isoquinolinylene group, a benzoquinolinylene group, a phthalazinylene group, a naphthyridinylene group, a quinoxalinylene group, a quinazolinylene group, a cinnolinylene group, a phenanthridinylene group, an acridinylene group, a phenanthrolinylene group, a phenazinylene group, a benzimidazolylene group, an isobenzothiazolylene group, a benzoxazolylene group, an isobenzoxazolylene group, a triazolylene group, a tetrazolylene group, an imidazopyridinylene group, an imidazopyrimidinylene group, and an azacarbazolylene group; The aforementioned Q 31 ~Q 33 For an explanation of this, please refer to the description in this specification.

[0154] As another example, in the chemical formula 301, the chemical formula 301-1, and the chemical formula 301-2, R 301 ~R 304 are independent of each other, Phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl , thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, thiadiazolyl, oxadiazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazo -aryl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group, isobenzothiazolyl group, benzoxazolyl group, isobenzoxazolyl group, triazolyl group, tetrazolyl group, imidazopyridinyl group, imidazopyrimidinyl group, azacarbazolyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -N(Q 31 )(Q 32 ), -B(Q 31 )(Q 32 ), -C(=O)(Q 31 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group and an azacarbazolyl group; The aforementioned Q 31 ~Q 33 For an explanation of this, please refer to the description in this specification.

[0155] As yet another example, the host may include an alkaline earth metal complex. For example, the host may be selected from the group consisting of a Be complex (e.g., compound H55 below), a Mg complex, and a Zn complex.

[0156] The host may include at least one selected from 9,10-di(2-naphthyl)anthracene (ADN), 2-methyl-9,10-bis(naphthalen-2-yl)anthracene (MADN), 9,10-di-(2-naphthyl)-2-t-butyl-anthracene (TBADN), 4,4'-bis(N-carbazolyl)-1,1'-biphenyl (CBP), 1,3-di-9-carbazolylbenzene (mCP), 1,3,5-tri(carbazol-9-yl)benzene (TCP), and the following compounds H1 to H55, but is not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0157] The host may also include at least one of a silicon-containing compound (e.g., bis(4-(9H-carbazol-9-yl)phenyl)diphenylsilane (BCPDS) used in the following examples) and a phosphine oxide-containing compound (e.g., 4-(1-(4-(diphenylamino)phenyl)cyclohexyl)phenyl)diphenylphosphine oxide (POPCPA) used in the following examples).

[0158] The host may include only one compound, or may include two or more different compounds. For example, the host in the following example may be variously modified to include BCPDS and POPCPA.

[0159] [Phosphorescent dopants included in the light-emitting layer of organic layer 150] The phosphorescent dopant may include an organometallic compound represented by Formula 1 herein.

[0160] The phosphorescent dopant may also include organometallic complexes represented by the following formulas 401 and 402: M(L 401 ) xc1 (L 402 ) xc2 ...(chemical formula 401) [ka] ...(chemical formula 402)

[0161] In Chemical Formula 401 and Chemical Formula 402, M is selected from the group consisting of iridium (Ir), platinum (Pt), palladium (Pd), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), rhodium (Rh) and thulium (Tm); L 401 is selected from the ligands represented by chemical formula 402, xc1 is 1, 2 or 3, and when xc1 is 2 or more, 2 or more L 401 are either identical or different, L 402 is an organic ligand, xc2 is selected from an integer of 0 to 4, and when xc2 is 2 or more, 2 or more L 402 are either identical or different, X 401 ~X 404 are, independently of each other, nitrogen or carbon; X 401 and X 403 is bonded through a single or double bond, and X 402 and X 404 is bonded via a single or double bond, A 401 and A 402 are independent of each other, C 5 -C 60 Carbocyclic group or C 1 -C 60 is a heterocyclic group, X 405 is a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 411 )-*', *-C(Q 411 )(Q 412 )-*', *-C(Q 411 )=C(Q 412 )-*', *-C(Q 411 )=*' or *=C=*', and the above Q 411 and Q 412 is hydrogen, deuterium, C 1 -C 20 Alkyl group, C 1 -C 20 an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, or a naphthyl group; X 406 is a single bond, O or S, R 401 and R 402 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 20 Alkyl groups, substituted or unsubstituted C 1 -C 20 Alkoxy groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, and substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 401 )(Q 402 )(Q 403 ), -N(Q 401 )(Q 402 ), -B(Q 401 )(Q 402 ), -C(=O)(Q 401 ), -S(=O) 2 (Q 401 ), and -P(=O)(Q 401 )(Q 402 ) and the above Q 401 ~Q 403 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 Alkoxy group, C 6 -C 20 Aryl groups and C 1 -C 20 heteroaryl groups, xc11 and xc12 are each independently selected from an integer of 0 to 10; In chemical formula 402, * and *' are bonding positions to M in chemical formula 401.

[0162] According to one example, in formula 402, A 401 and A 402 are ring structures selected independently from benzene, naphthalene, fluorene, spiro-bifluorene, indene, pyrrole, thiophene, furan, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine radicals pyridazine, quinoline, isoquinoline, benzoquinoline, quinoxaline, quinazoline, carbazole, benzimidazole, benzofuran, benzothiophene, isobenzothiophene, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, dibenzofuran and dibenzothiophene.

[0163] According to another example, in formula 402, i) X 401 is nitrogen, and X 402 is carbon, or ii) X 401 and X 402 Both are nitrogen.

[0164] According to yet another example, in formula 402, R 401 and R 402 are independent of each other, Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a phenyl group, a naphthyl group, a cyclopentyl group, a cyclohexyl group, an adamantanyl group, a norbornanyl group, and a norbornenyl group; 1 -C 20 Alkyl group and C 1 -C 20 Alkoxy groups; cyclopentyl group, cyclohexyl group, adamantanyl group, norbornanyl group, norbornenyl group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, quinoxalinyl group, quinazolinyl group, carbazolyl group, dibenzofuranyl group and dibenzothiophenyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 selected from the group consisting of an alkoxy group, a cyclopentyl group, a cyclohexyl group, an adamantanyl group, a norbornanyl group, a norbornenyl group, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a pyridinyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group cyclopentyl, cyclohexyl, adamantanyl, norbornanyl, norbornenyl, phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazolyl, dibenzofuranyl, and dibenzothiophenyl groups, each of which is substituted with at least one of the following: -Si(Q 401 )(Q 402 )(Q 403 ), -N(Q 401 )(Q 402 ), -B(Q 401 )(Q 402 ), -C(=O)(Q 401 ), -S(=O) 2 (Q 401 ) and -P(=O)(Q 401 )(Q 402 ); The aforementioned Q 401 ~Q 403 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is selected from the group consisting of alkoxy, phenyl, biphenylyl and naphthyl groups, but is not limited thereto.

[0165] According to yet another example, in the chemical formula 401, when xc1 is 2 or more, 2 or more L 401 In this case, two A 401 may optionally be linked to a linking group, X 407 or two A 402 may optionally be linked to a linking group, X 408 (See Compounds PD1 to PD4 and Compound PD7 below.) 407 and X 408 are, independently of each other, a single bond, *-O-*', *-S-*', *-C(=O)-*', *-N(Q 413 )-*', *-C(Q 413 )(Q 414 )-*' or *-C(Q 413 )=C(Q 414 )-*'(where Q 413 and Q 414 are independently hydrogen, deuterium, and C 1 -C 20 Alkyl group, C 1 -C 20 alkoxy group, phenyl group, biphenylyl group, terphenylyl group or naphthyl group), but are not limited to these.

[0166] L in Chemical Formula 401 402 is any monovalent, divalent or trivalent organic ligand. For example, L 402 is selected from, but is not limited to, halogens, diketones (e.g., acetylacetonate), carboxylic acids (e.g., picolinate), -C(=O), isonitrile, -CN, and phosphorous-containing materials (e.g., phosphine, phosphite).

[0167] The phosphorescent dopant is selected from, for example, the following compounds PD1 to PD25, but is not limited thereto. [ka] [ka] [ka]

[0168] [Fluorescent dopants in the light-emitting layer] As described above, the organic electroluminescent device 10 may include a fluorescent dopant. The fluorescent dopant may include an arylamine compound or a styrylamine compound.

[0169] The fluorescent dopant may include a compound represented by formula 501 below. [ka] ...(chemical formula 501)

[0170] In the chemical formula 501, Ar 501 is a substituted or unsubstituted C 5 -C 60 Carbocyclic group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, L 501 ~L 503 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xd1 to xd3 are each independently selected from integers of 0 to 3; R 501 and R 502 are each independently a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; xd4 is selected from integers from 1 to 6.

[0171] According to one example, Ar in formula 501 501 teeth, naphthyl, heptalenyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl, picenyl, perylenyl, pentaphenyl, indenoanthracenyl, and indenophenanthrenyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 a naphthyl group, a heptalenyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, an indenoanthracenyl group, and an indenophenanthrenyl group, each of which is substituted with at least one selected from an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, and a naphthyl group.

[0172] According to another example, in formula 501, L 501 ~L 503 are independent of each other, phenylene, naphthylene, fluorenylene, spiro-bifluorenylene, benzofluorenylene, dibenzofluorenylene, phenanthrenylene, anthracenylene, fluoranthenylene, triphenylenylene, pyrenylene, chrysenylene, perylenylene, pentaphenylene, hexacenylene, pentacenylene, thiophenylene, furanylene, carbazolylene, indolylene, isoindolylene, benzofuranylene, benzothiophenylene, dibenzofuranylene, dibenzothiophenylene, benzocarbazolylene, dibenzocarbazolylene, dibenzosilolylene and pyridinylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 substituted with at least one selected from the group consisting of an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, and a pyridinyl group; a phenylene group, a naphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a perylenylene group, a pentaphenylene group, a hexacenylene group, a pentacenylene group, a thiophenylene group, a furanylene group, a carbazolylene group, an indolylene group, an isoindolylene group, a benzofuranylene group, a benzothiophenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, a dibenzocarbazolylene group, a dibenzosilolylene group and a pyridinylene group;

[0173] According to yet another example, in formula 501, R 501 and R 502 are independent of each other, phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy groups, phenyl groups, biphenylyl groups, terphenylyl groups, naphthyl groups, fluorenyl groups, spiro-bifluorenyl groups, benzofluorenyl groups, dibenzofluorenyl groups, phenanthrenyl groups, anthracenyl groups, fluoranthenyl groups, triphenylenyl groups, pyrenyl groups, chrysenyl groups, perylenyl groups, pentaphenyl groups, hexacenyl groups, pentacenyl groups, thiophenyl groups, furanyl groups, carbazolyl groups, indolyl groups, isoindolyl groups, benzofuranyl groups, benzothiophenyl groups, dibenzofuranyl groups, dibenzothiophenyl groups, benzocarbazolyl groups, dibenzocarbazolyl groups, dibenzosilolyl groups, pyridinyl groups and -Si(Q 31 )(Q 32 )(Q 33 phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl and pyridinyl groups, The aforementioned Q 31~ Q 33 is C 1 -C 10 Alkyl group, C 1 -C 10 It is selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0174] As yet another example, xd4 in chemical formula 501 may be 2, but is not limited to this.

[0175] For example, the fluorescent dopant may be selected from among the following compounds FD1 to FD22. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0176] The fluorescent dopant may be selected from the following compounds, but is not limited thereto: [ka] [ka]

[0177] [Electron transport region in organic layer 150] The electron transport region can have i) a single layer structure made of a single material, ii) a single layer structure made of multiple different materials, or iii) a multilayer structure having multiple layers made of multiple different materials.

[0178] The electron transport region may include at least one layer selected from, but is not limited to, a buffer layer, a hole blocking layer, an electron modulating layer, an electron transport layer (ETL), and an electron injection layer.

[0179] For example, the electron transport region may have a structure such as, but not limited to, an electron transport layer / electron injection layer, a hole blocking layer / electron transport layer / electron injection layer, an electron control layer / electron transport layer / electron injection layer, or a buffer layer / electron transport layer / electron injection layer, which are stacked in this order from the light emitting layer.

[0180] The electron transport region (eg, the buffer layer, the hole blocking layer, the electron modulating layer, or the electron transport layer in the electron transport region) may include a non-metal-containing compound that includes at least one π-electron deficient nitrogen-containing ring.

[0181] A "π-electron deficient nitrogen-containing ring" is a ring-forming partial structure having at least one *-N=*' partial structure. 1 -C 60 It means a heterocyclic group.

[0182] For example, the "π-electron deficient nitrogen-containing ring" is i) a 5- to 7-membered heteromonocyclic group having at least one *-N=*' partial structure, ii) a heteropolycyclic group in which two or more of the 5- to 7-membered heteromonocyclic groups having at least one *-N=*' partial structure are condensed with each other, or iii) at least one of the 5- to 7-membered heteromonocyclic groups having at least one *-N=*' partial structure and at least one C 5 -C 60 A heteropolycyclic group is a group in which a carbocyclic group and a cyclic group are condensed together.

[0183] Specific examples of the π-electron deficient nitrogen-containing ring include, but are not limited to, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, indazole, purine, quinoline, isoquinoline, benzoquinoline, phthalazine, naphthyridine, quinoxaline, quinazoline, cinnoline, phenanthridine, acridine, phenanthroline, phenazine, benzimidazole, isobenzothiazole, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, thiadiazole, imidazopyridine, imidazopyrimidine, and azacarbazole.

[0184] For example, the electron transport region may include a compound represented by formula 601 below. [Ar 601 ] xe11 -[(L 601 ) xe1 -R 601 ] xe21 ...(chemical formula 601)

[0185] In the chemical formula 601, Ar 601 is a substituted or unsubstituted C 5 -C 60 Carbocyclic group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, xe11 is 1, 2 or 3, L 601 is a substituted or unsubstituted C 3 -C 10 Cycloalkylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkylene groups, substituted or unsubstituted C 3 -C 10 Cycloalkenylene group, substituted or unsubstituted C 1 -C 10 Heterocycloalkenylene group, substituted or unsubstituted C 6 -C 60 Arylene group, substituted or unsubstituted C 1 -C 60 is selected from the group consisting of a heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed polycyclic heterocyclic group; xe1 is selected from integers from 0 to 5, R 601 is a substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkyl groups, substituted or unsubstituted C 3 -C 10 Cycloalkenyl groups, substituted or unsubstituted C 1 -C 10 Heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 Aryl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -Si(Q 601 )(Q 602 )(Q 603 ), -C(=O)(Q 601 ), -S(=O) 2 (Q 601 ), and -P(=O)(Q 601 )(Q 602 ), The aforementioned Q 601 ~Q 603 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 an alkoxy group, a phenyl group, a biphenylyl group, a terphenylyl group, or a naphthyl group; xe21 is selected from integers of 1 to 5.

[0186] According to one example, xe11 Ar 601 , and xe21 R 601 At least one of the above may contain a π-electron deficient nitrogen-containing ring as described above.

[0187] According to one example, the ring Ar in formula 601 601 teeth, Benzene, naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenalene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphene, indenoanthracene, dibenzofuran, dibenzothiophene, carbazole, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, isopropyl alcohol, ethyl ... a ring structure selected from among: arylenediamine, arylenediamine, aryl, aryloxy ... Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -S(=O) 2 (Q 31 ) and -P(=O)(Q 31 )(Q 32 ) substituted with at least one selected from the group consisting of benzene, naphthalene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenalene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentaphene, indenoanthracene, dibenzofuran, dibenzothiophene, carbazole, imidazole, pyrazole, thiazole, isothiazole, oxazole, isoxazole, pyridine, pyrazine, pyridine ... a ring structure selected from among imidine, pyridazine, indazole, purine, quinoline, isoquinoline, benzoquinoline, phthalazine, naphthyridine, quinoxaline, quinazoline, cinnoline, phenanthridine, acridine, phenanthroline, phenazine, benzimidazole, isobenzothiazole, benzoxazole, isobenzoxazole, triazole, tetrazole, oxadiazole, triazine, thiadiazole, imidazopyridine, imidazopyrimidine, and azacarbazole; The aforementioned Q 31 ~Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0188] In the chemical formula 601, when xe11 is 2 or more, 2 or more Ar 601 may be bonded to each other via a single bond.

[0189] According to another example, Ar in formula 601 601 may be an anthracene ring.

[0190] According to yet another example, the compound represented by formula 601 may be represented by formula 601-1 below. [ka] ...(chemical formula 601-1)

[0191] In the chemical formula 601-1, X 614 is N or C(R 614 ), and X 615 is N or C(R 615 ), and X 616 is N or C(R 616 ), and X 614 ~X 616 At least one of is N, L 611 ~L 613 are, independently of each other, the aforementioned L 601 Please refer to the explanation of xe611 to xe613 are independent of each other, refer to the explanation of xe1 above, R 611 ~R 613 are independent of each other, 601 Please refer to the explanation of R 614 ~R 616 are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 It is selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl and naphthyl groups.

[0192] According to one example, in formula 601 and formula 601-1, L 601 , and L 611 ~L 613 are independent of each other, Phenylene group, naphthylene group, fluorenylene group, spiro-bifluorenylene group, benzofluorenylene group, dibenzofluorenylene group, phenanthrenylene group, anthracenylene group, fluoranthenylene group, triphenylenylene group, pyrenylene group, chrysenylene group, perylenylene group, pentaphenylene group, hexacenylene group, pentacenylene group, thiophenylene group, furanylene group, carbazolylene group, indolylene group, isoindolylene group, benzofuranylene group, benzothiophenylene group, dibenzofuranylene group, dibenzothiophenylene group, benzocarbazolylene group, dibenzocarbazolylene group, dibenzosilolylene group, pyridinylene group, imidazolylene group, pyrazolylene group, thiazolylene group , isothiazolylene groups, oxazolylene groups, isoxazolylene groups, thiadiazolylene groups, oxadiazolylene groups, pyrazinylene groups, pyrimidinylene groups, pyridazinylene groups, triazinylene groups, quinolinylene groups, isoquinolinylene groups, benzoquinolinylene groups, phthalazinylene groups, naphthyridinylene groups, quinoxalinylene groups, quinazolinylene groups, cinnolinylene groups, phenanthridinylene groups, acridinylene groups, phenanthrolinylene groups, phenazinylene groups, benzimidazolylene groups, isobenzothiazolylene groups, benzoxazolylene groups, isobenzoxazolylene groups, triazolylene groups, tetrazolylene groups, imidazopyridinylene groups, imidazopyrimidinylene groups, and azacarbazolylene groups; and Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, bazolyl group, dibenzocarbazolyl group, dibenzosilolyl group, pyridinyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, thiadiazolyl group, oxadiazolyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, triazinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, phthalazinyl group, naphthyridinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, phenanthridinyl group, acridinyl group, phenanthrolinyl group, phenazinyl group, benzimidazolyl group , a phenylene group, a naphthylene group, a fluorenylene group, a spiro-bifluorenylene group, a benzofluorenylene group, a dibenzofluorenylene group, a phenanthrenylene group, an anthracenylene group, a fluoranthenylene group, a triphenylenylene group, a pyrenylene group, a chrysenylene group, a perylenylene group, a pentaphenylene group, a hexa ... a sacenylene group, a pentacenylene group, a thiophenylene group, a furanylene group, a carbazolylene group, an indolylene group, an isoindolylene group, a benzofuranylene group, a benzothiophenylene group, a dibenzofuranylene group, a dibenzothiophenylene group, a benzocarbazolylene group, a dibenzocarbazolylene group, a dibenzosilolylene group, a pyridinylene group, an imidazolylene group, a pyrazolylene group, a thiazolylene group, an isothiazolylene group, an oxazolylene group, an isoxazolylene group, a thiadiazolylene group, an oxadiazolylene group, a pyrazinylene group, a pyrimidinylene group, a pyridazinylene group,triazinylene group, quinolinylene group, isoquinolinylene group, benzoquinolinylene group, phthalazinylene group, naphthyridinylene group, quinoxalinylene group, quinazolinylene group, cinnolinylene group, phenanthridinylene group, acridinylene group, phenanthrolinylene group, phenazinylene group, benzimidazolylene group, isobenzothiazolylene group, benzoxazolylene group, isobenzoxazolylene group, triazolylene group, tetrazolylene group, imidazopyridinylene group, imidazopyrimidinylene group and azacarbazolylene group, but are not limited thereto.

[0193] According to another example, in chemical formula 601 and chemical formula 601-1, xe1 and xe611 to xe613 are 0, 1, or 2, independently of each other.

[0194] According to yet another example, in formula 601 and formula 601-1, R 601 , and R 611 ~R 613 are independent of each other, Phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, hexacenyl, pentacenyl, thiophenyl, furanyl, carbazolyl, indolyl, isoindolyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, benzocarbazolyl, dibenzocarbazolyl, dibenzosilolyl, pyridinyl, imidazolyl, pyrazolyl a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, phenyl group, biphenylyl group, terphenylyl group, naphthyl group, fluorenyl group, spiro-bifluorenyl group, benzofluorenyl group, dibenzofluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, perylenyl group, pentaphenyl group, hexacenyl group, pentacenyl group, thiophenyl group, furanyl group, carbazolyl group, indolyl group, isoindolyl group, benzofuranyl group, benzothiophenyl group, dibenzofuranyl group, dibenzothiophenyl group, benzocarbazolyl group, a zolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a phthalazinyl group, a naphthyridinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthridinyl group, an acridinyl group, a phenanthrolinyl group, a phenazinyl group, a benzimidazolyl group, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a perylenyl group, or a pentaphenyl group, each of which is substituted with at least one selected from an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a triazolyl group, a tetrazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, and an azacarbazolyl group; a hexacenyl group, a pentacenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, a pyridinyl group, an imidazolyl group, a pyrazolyl group, a thiazolyl group, an isothiazolyl group, an oxazolyl group, an isoxazolyl group, a thiadiazolyl group, an oxadiazolyl group, a pyrazinyl group, a pyrimidinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, an isoquinolinyl group,benzoquinolinyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthridinyl, acridinyl, phenanthrolinyl, phenazinyl, benzimidazolyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl and azacarbazolyl groups; and -S(=O) 2 (Q 601 ) and -P(=O)(Q 601 )(Q 602 ); The aforementioned Q 601 and Q 602 For the explanation of the above, please refer to the description in this specification.

[0195] The electron transport region may contain at least one compound selected from the following compounds ET1 to ET36, but is not limited thereto. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka]

[0196] The electron transport region may also include at least one compound selected from 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq3, BAlq, 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ), and NTAZ. [ka]

[0197] As yet another example, the electron transport region may use compounds such as, but not limited to, phosphine oxide-containing compounds, which, according to one embodiment, may also be used in the hole blocking layer in the electron transport region, but are not limited to these.

[0198] The thickness of the buffer layer, the hole blocking layer, or the electron control layer may be, independently of each other, about 2 nm to about 100 nm, for example, about 3 nm to about 30 nm. When the thickness of the buffer layer, the hole blocking layer, or the electron control layer satisfies the above-mentioned range, sufficient hole blocking properties or electron control properties can be obtained without a substantial increase in driving voltage.

[0199] The thickness of the electron transport layer may be about 10 nm to about 100 nm, for example, about 15 nm to about 50 nm. When the thickness of the electron transport layer satisfies the above-mentioned range, sufficient electron transport properties can be obtained without a substantial increase in driving voltage.

[0200] The electron transport region (eg, an electron transport layer in an electron transport region) may further include a metal-containing material in addition to the materials described above.

[0201] The metal-containing material may include at least one selected from an alkali metal complex and an alkaline earth metal complex. The metal ion of the alkali metal complex is selected from Li ion, Na ion, K ion, Rb ion, and Cs ion, and the metal ion of the alkaline earth metal complex is selected from Be ion, Mg ion, Ca ion, Sr ion, and Ba ion. The ligands coordinated to the metal ions of the alkali metal complex and the alkaline earth metal complex may be independently selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but are not limited thereto.

[0202] For example, the metal-containing material may include a Li complex. The Li complex may include, for example, the following compound ET-D1 (lithium quinolate (LiQ)) or ET-D2. [ka]

[0203] The electron transport region may include an electron injection layer that facilitates electron injection from the second electrode 190. The electron injection layer may be in direct contact with the second electrode 190.

[0204] The electron injection layer can have i) a single layer structure made of a single material, ii) a single layer structure made of a plurality of different materials, or iii) a multilayer structure having a plurality of layers made of a plurality of different materials.

[0205] The electron injection layer may comprise an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, a rare earth metal compound, an alkali metal complex, an alkaline earth metal complex, a rare earth metal complex, or any combination thereof.

[0206] The alkali metal is selected from the group consisting of Li, Na, K, Rb and Cs. According to one example, the alkali metal is Li, Na or Cs. According to another example, the alkali metal is Li or Cs, but is not limited thereto.

[0207] The alkaline earth metal is selected from the group consisting of Mg, Ca, Sr, and Ba.

[0208] The rare earth metal is selected from the group consisting of Sc, Y, Ce, Tb, Yb and Gd.

[0209] The alkali metal compounds, alkaline earth metal compounds and rare earth metal compounds may be selected from among oxides and halides (e.g., fluorides, chlorides, bromides, iodides, etc.) of alkali metals, alkaline earth metals and rare earth metals.

[0210] Alkali metal compounds include Li 2 O, Cs 2 OK 2 The alkali metal compound may be selected from the group consisting of alkali metal oxides such as LiF, LiO, and alkali metal halides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, and KI. According to one example, the alkali metal compound is LiF, Li 2 The inorganic oxide may be selected from the group consisting of O, NaF, LiI, NaI, CsI, and KI, but is not limited thereto.

[0211] The alkaline earth metal compound may be selected from alkaline earth metal compounds such as BaO, SrO, CaO, Ba x Sr 1-x O(0 < x < 1), BaxCa1-xO(0 < x < 1). According to one example, the alkaline earth metal compound is selected from BaO, SrO, and CaO, but is not limited thereto.

[0212] The rare earth metal compound may be selected from YbF 3 , ScF 3 , Sc 2 O 3 , Y 2 O 3 , Ce 2 O 3 , GdF 3 and TbF 3 . According to one example, the rare earth metal compound is selected from YbF 3 , ScF 3 , TbF 3 , YbI 3 , ScI 3 , TbI 3 , but is not limited thereto.

[0213] The alkali metal complex, alkaline earth metal complex, and rare earth metal complex contain the ions of the alkali metal, alkaline earth metal, and rare earth metal as described above. The ligands coordinated to the metal ions of the alkali metal complex, alkaline earth metal complex, and rare earth metal complex may be independently selected from hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, and cyclopentadiene, but are not limited thereto.

[0214] The electron injection layer may be composed of only the above-mentioned alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any combination thereof, or may further contain an organic substance. When the electron injection layer further contains an organic substance, the alkali metal, alkaline earth metal, rare earth metal, alkali metal compound, alkaline earth metal compound, rare earth metal compound, alkali metal complex, alkaline earth metal complex, rare earth metal complex, or any combination thereof may be uniformly or non-uniformly dispersed in the matrix composed of the organic substance.

[0215] The thickness of the electron injection layer may be about 0.1 nm to about 10 nm, or about 0.3 nm to about 9 nm. When the thickness of the electron injection layer satisfies the above-mentioned range, sufficient electron injection characteristics can be obtained without a substantial increase in driving voltage.

[0216] [Second electrode 190] The second electrode 190 is disposed on the organic layer 150. The second electrode 190 is a cathode, which is an electron injecting electrode. In this case, the material for the second electrode 190 may be a metal, an alloy, an electrically conductive compound, or a combination thereof, each of which has a low work function.

[0217] The second electrode 190 may include at least one selected from the group consisting of lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), ITO, and IZO, but is not limited thereto. The second electrode 190 is a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0218] The second electrode 190 can have a single layer structure or a multi-layer structure having multiple layers.

[0219] [Organic electroluminescent device 20-40] The organic electroluminescent device 20 of FIG. 2 has a structure in which a first capping layer 210, a first electrode 110, an organic layer 150, and a second electrode 190 are stacked in this order, the organic electroluminescent device 30 of FIG. 3 has a structure in which a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are stacked in this order, and the organic electroluminescent device 40 of FIG. 4 has a structure in which a first capping layer 210, a first electrode 110, an organic layer 150, a second electrode 190, and a second capping layer 220 are stacked in this order.

[0220] 2 to 4, the description of the first electrode 110, the organic layer 150, and the second electrode 190 refer to the description of FIG.

[0221] In the organic layer 150 of the organic electroluminescent device 20, 40, light generated in the light-emitting layer passes through the first electrode 110, which is a semi-transmissive electrode or a transmissive electrode, and the first capping layer 210, and in the organic layer 150 of the organic electroluminescent device 30, 40, light generated in the light-emitting layer passes through the second electrode 190, which is a semi-transmissive electrode or a transmissive electrode, and the second capping layer 220, and is extracted to the outside.

[0222] The first and second capping layers 210 and 220 may serve to improve external light emission efficiency according to the principle of constructive interference.

[0223] The first capping layer 210 and the second capping layer 220 may be, independently of each other, an organic capping layer made of an organic material, an inorganic capping layer made of an inorganic material, or a composite capping layer containing an organic material and an inorganic material.

[0224] At least one of the first capping layer 210 and the second capping layer 220 may independently include at least one material selected from the group consisting of carbocyclic compounds, heterocyclic compounds, amine-based compounds, porphine derivatives, phthalocyanine derivatives, naphthalocyanine derivatives, alkali metal complexes, and alkaline earth metal complexes. The carbocyclic compounds, heterocyclic compounds, and amine-based compounds are optionally substituted with a substituent containing at least one element selected from the group consisting of O, N, S, Se, Si, F, Cl, Br, and I. According to an example, at least one of the first capping layer 210 and the second capping layer 220 may independently include an amine-based compound.

[0225] According to another example, at least one of the first capping layer 210 and the second capping layer 220 may include a compound represented by Formula 201 or a compound represented by Formula 202, independently of one another.

[0226] According to yet another example, at least one of the first capping layer 210 and the second capping layer 220 may contain, independently of each other, a compound selected from the aforementioned compounds HT28 to HT33 and the following compounds CP1 to CP5, but is not limited thereto.

[0227] [ka]

[0228] The organic electroluminescent device according to one embodiment of the present disclosure has been described above with reference to FIGS. 1 to 4, but is not limited thereto.

[0229] Each layer included in the hole transport region, the light emitting layer, and the electron transport region is formed in a predetermined region using various methods such as vacuum deposition, spin coating, casting, LB (Langmuir-Blodgett) method, ink jet printing, laser printing, and laser induced thermal imaging (LITI).

[0230] When each layer included in the hole transport region, the light emitting layer, and each layer included in the electron transport region are formed by vacuum deposition, the deposition conditions are, for example, a deposition temperature of about 100° C. to about 500° C., a deposition temperature of about 10 -8 Torr ~ approx. 10 -3 The vacuum level is selected within the range of a vacuum of torr and a deposition rate of about 0.01 Å / sec to about 100 Å / sec, taking into consideration the material contained in the layer to be formed and the structure of the layer to be formed.

[0231] When each layer included in the hole transport region, the light-emitting layer, and each layer included in the electron transport region are formed by a spin coating method, the coating conditions are selected, for example, within a coating speed range of about 2,000 rpm to about 5,000 rpm and a heat treatment temperature range of about 80°C to 200°C, taking into consideration the materials included in the layers to be formed and the structure of the layers to be formed. EXAMPLES

[0232] The compound and organic electroluminescent device according to one embodiment of the present invention will be described in more detail below with reference to synthesis examples and examples. In the synthesis examples below, in the expression "'B' was used instead of 'A'", the molar equivalent of 'A' and the molar equivalent of 'B' are the same.

[0233] [Synthesis example] Synthesis Example 1: Synthesis of Compound 1 [ka]

[0234] (1) Synthesis of intermediate [1-A] 24.6g (100mmol) of 2-bromocarbazole, 19.0g (120mmol) of 2-bromopyridine, 42.5g (200mmol) of potassium triphosphate, 3.7g (20mmol) of CuI and 2.3g (20mmol) of picolinic acid were placed in a reaction vessel and suspended in 200mL of dimethylsulfoxide. The reaction mixture was heated and stirred at 160°C for 24 hours. After the reaction was completed, the mixture was cooled to room temperature, 600mL of distilled water was added, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 26.2g (81mmol) of intermediate [1-A].

[0235] (2) Synthesis of intermediate [1-B] 26.2g (81mmol) of intermediate [1-A], 9.3g (54mmol) of 3-bromophenol, 34.4g (162mmol) of potassium triphosphate, 3.0g (16.2mmol) of CuI and 1.9g (16.2mmol) of picolinic acid were placed in a reaction vessel and suspended in 160mL of dimethylsulfoxide. The reaction mixture was heated and stirred at 160°C for 24 hours. After the reaction was completed, the mixture was cooled to room temperature, 500mL of distilled water was added, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 25.3g (61mmol) of intermediate [1-B].

[0236] (3) Synthesis of intermediate [1-C] 25.3 g (61 mmol) of intermediate [1-B] was dissolved in 350 mL of tetrahydrofuran, and the reaction temperature was then lowered to -78°C. 27 mL of N-BuLi solution (2.0 M in hexane) was added, and the mixture was stirred at the same temperature for 1 hour. Next, B(OMe) 3 7.0g (67.1mmol) of was added, the reaction temperature was raised to room temperature, and the mixture was stirred for 24 hours. After the reaction was completed, 2N HCl solution was added, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 17.2g (45.1mmol) of intermediate [1-C].

[0237] (4) Synthesis of intermediate [1-D] 17.2g (45.1mmol) of intermediate [1-C] and 6.4g (58.6mmol) of 2-aminophenol were placed in a reaction vessel and suspended in 300ml of toluene. The reaction mixture was heated with a Dean-Stack trap installed and stirred at 110°C for 24 hours. An excess of iodomethane was then added and stirred for another 12 hours. After the reaction was completed, the mixture was cooled to room temperature, 500mL of distilled water was added, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 4.4g (9.5mmol) of intermediate [1-D].

[0238] (5) Synthesis of Compound 1 4.4g (9.5mmol) of intermediate [1-D], 4.0g (9.5mmol) of potassium tetrachloroplatinate, and 300mg (1.0mmol) of tetraammonium bromine were suspended in 190mL of dodecane and stirred at 120℃ for 72 hours. After the reaction was completed, the mixture was cooled to room temperature, 200mL of distilled water was added, and the solid compound was filtered. The filtered solid compound was separated using column chromatography to obtain 0.4g (0.6mmol) of compound 1.

[0239] Synthesis Example 2: Synthesis of Compound 6 [ka]

[0240] Compound 6 (0.48 g, 0.7 mmol) was obtained using the same method as in Synthesis Example 1, except that 2-iodopropane was used instead of iodomethane.

[0241] Synthesis Example 3: Synthesis of Compound 11 [ka]

[0242] (1) Synthesis of intermediate [11-A] 28.3g (120mmol) of 1,3-dibromobenzene, 6.8g (100mmol) of pyrazole, 42.5g (200mmol) of potassium triphosphate, 3.7g (20mmol) of CuI and 2.3g (20mmol) of picolinic acid were placed in a reaction vessel and suspended in 200mL of dimethylsulfoxide. The reaction mixture was heated and stirred at 160°C for 24 hours. After the reaction was completed, the mixture was cooled to room temperature, 600mL of distilled water was added, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 17.6g (79mmol) of intermediate [11-A].

[0243] (2) Synthesis of compound 11 Thereafter, the same method as in the above-mentioned Synthesis Example 1 was used to obtain 0.28 g (0.5 mmol) of compound 11.

[0244] Synthesis Example 4: Synthesis of Compound 16 [ka]

[0245] (1) Synthesis of intermediate [16-A] 18.1g (100mmol) of 1-bromo-3-ethynylbenzene, 6.8g (120mmol) of azidomethane, 3.7g (20mmol) of CuI, and 3.5g (20mmol) of L-ascorbic acid were placed in a reaction vessel and suspended in 200mL of water. The reaction mixture was stirred at room temperature for 6 hours. After the reaction was completed, it was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 20.2g (85mmol) of intermediate [16-A].

[0246] (2) Synthesis of compound 16 Then, using the same method as in Synthesis Example 1, 0.46 g (0.8 mmol) of compound 16 was obtained.

[0247] Synthesis Example 5: Synthesis of Compound 21 [ka]

[0248] (1) Synthesis of intermediate [21-A] 17.5g (100mmol) of 1-bromo-fluorobenzene, 20.2g (120mmol) of a-carboline and 42.5g (200mmol) of potassium triphosphate were placed in a reaction vessel and suspended in 200mL of dimethylsulfoxide. The reaction mixture was heated and stirred at 160°C for 24 hours. After the reaction was completed, the mixture was cooled to room temperature, 600mL of distilled water was added, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with a saturated aqueous sodium chloride solution and dried over sodium sulfate. The residue after removing the solvent was separated using column chromatography to obtain 29.4g (91mmol) of intermediate [21-A].

[0249] (2) Synthesis of compound 21 Then, using the same method as in Synthesis Example 1, 0.20 g (0.3 mmol) of compound 21 was obtained.

[0250] The compounds synthesized in the above synthesis examples 1 The 1 H NMR and MS / FAB results are shown in Table 1 below. [Table 1]

[0251] For compounds other than those shown in Table 1, those skilled in the art will be able to easily recognize the synthesis methods thereof by referring to the above-mentioned synthetic pathways and raw materials.

[0252] Example 1 The substrate and anode were Corning 15 Ω / cm 2 The glass substrate on which (1,200 Å) ITO was formed was cut to a size of 50 mm × 50 mm × 0.7 mm, and ultrasonically cleaned using isopropyl alcohol and pure water for 5 minutes each, and then cleaned by exposure to ultraviolet light and ozone for 30 minutes, and the glass substrate was placed in a vacuum deposition apparatus.

[0253] 2-TNATA was vacuum-deposited on top of the ITO anode formed on the glass substrate to form a 60 nm-thick hole injection layer, and NPB was vacuum-deposited on top of the hole injection layer to form a 30 nm-thick hole transport layer.

[0254] On the top of the hole transport layer, cohosts BCPDS and POPCPA (the weight ratio of BCPDS to POPCPA was 1:1) and the dopant Compound 1 were co-deposited so that the weight ratio of the cohost to the dopant was 90:10, to form a 30 nm-thick light-emitting layer.

[0255] Diphenyl(4-(triphenylsilyl)phenyl)phosphine oxide (TSPO1) was evaporated on top of the light-emitting layer to form a 5 nm thick hole-blocking layer, Alq3 was evaporated on top of the hole-blocking layer to form a 30 nm thick electron-transporting layer, LiF was evaporated on top of the electron-transporting layer to form a 1 nm thick electron-injecting layer, and then Al was vacuum-evaporated on top of the electron-injecting layer to form a 300 nm thick cathode, thereby producing an organic electroluminescent device. [ka]

[0256] Examples 2 to 4 and Comparative Examples 1 to 3 An organic electroluminescent device was prepared in the same manner as in Example 1, except that, when forming the light-emitting layer, the compounds shown in Table 2 were used as the dopant instead of Compound 1.

[0257] Evaluation example 1 The driving voltage, current density, luminance, luminous efficiency, emitted light and maximum emission wavelength of the organic electroluminescent devices fabricated in the above-mentioned Examples 1 to 4 and Comparative Examples 1 to 3 were measured using a Keithley SMU 236 and a luminance meter PR650, and the results are shown in Table 2. [Table 2]

[0258] [ka] ...<Compound A> [ka] ...<Compound B>

[0259] Referring to Table 2, it was confirmed that the organic electroluminescent devices of Examples 1 to 4 had a lower driving voltage and higher luminance and luminous efficiency than the organic electroluminescent devices of Comparative Examples 1 to 3. [Explanation of symbols]

[0260] 10 Organic electroluminescent device 110 1st electrode 150 Organic layer 190 2nd electrode 210 First capping layer 220 Second Capping Layer

Claims

1. A first electrode; a second electrode facing the first electrode; an organic layer including a light-emitting layer interposed between the first electrode and the second electrode; An organic electroluminescent device comprising an organometallic compound represented by the following Chemical Formula 1: 【Chemistry 1】 ...(chemical formula 1) (In Chemical Formula 1, M １１ is selected from platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), iridium (Ir), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb) and thulium (Tm); A １０ is (i) a 5-membered heterocyclic group, or ３ -C ６０ Carbocyclic groups and C １ -C ６０ at least one of the heterocyclic groups is a condensed 5-membered heterocyclic group, A ２０ , A ３０ and A ４０ are, independently of each other, C ５ -C ６０ Carbocyclic groups and C １ -C ６０ heterocyclic groups, X １１ is N(R ５０ ) ｂ５０ , O or S; X １２ is O or S, Y ２０ , Y ３０ and Y ４０ are, independently of each other, N or C, Y ２１ , Y ２２ , Y ３１ , Y ３２ , Y ４１ and Y ４２ are, independently of each other, N or C, T １１ ~T １４ are each independently selected from a coordinate bond, a covalent bond, *-O-*' and *-S-*'; L １１ ~L １４ are each independently a single bond, *-O-*', *-S-*', *-C(R １ ) (R ２ )-*', *-C(R １ ) = *', * = C(R １ )-*', *-C(R １ ) = C(R ２ )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R １ )-*', *-N(R １ )-*', *-P(R １ )-*', *-Si(R １ ) (R ２ )-*', *-P(R １ ) (R ２ )-*' and *-Ge(R １ ) (R ２ )-*', a11 to a14 are each independently selected from the group consisting of 0, 1, 2, 3, 4 and 5; R １ , R ２ , R １０ , R ２０ , R ３０ , R ４０ and R ５０ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C １ -C ６０ Alkyl group, substituted or unsubstituted C ２ -C ６０ Alkenyl group, substituted or unsubstituted C ２ -C ６０ Alkynyl group, substituted or unsubstituted C １ -C ６０ Alkoxy group, substituted or unsubstituted C ３ -C １０ Cycloalkyl groups, substituted or unsubstituted C １ -C １０ Heterocycloalkyl group, substituted or unsubstituted C ３ -C １０ Cycloalkenyl group, substituted or unsubstituted C １ -C １０ Heterocycloalkenyl group, substituted or unsubstituted C ６ -C ６０ Aryl group, substituted or unsubstituted C ６ -C ６０ Aryloxy group, substituted or unsubstituted C ６ -C ６０ Arylthio group, substituted or unsubstituted C １ -C ６０ Heteroaryl group, substituted or unsubstituted C １ -C ６０ Heteroaryloxy group, substituted or unsubstituted C １ -C ６０ a heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ), and -P(=S)(Q １ ) (Q ２ ) is selected from R １ , R ２ , R １０ , R ２０ , R ３０ , R ４０ and R ５０ Two or more adjacent ones of the C ５ -C ６０ A carbocyclic group or a substituted or unsubstituted C １ -C ６０ form a heterocyclic group or are not bonded to each other, b10, b20, b30 and b40 are independently selected from 1, 2, 3, 4, 5, 6, 7 and 8; b50 is 0 or 1; * and *' are bonding positions to adjacent atoms, The substituted C １ -C ６０ Alkyl groups, substituted C ２ -C ６０ Alkenyl Groups, Substituted C ２ -C ６０ Alkynyl Group, Substituted C １ -C ６０ Alkoxy groups, substituted C ３ -C １０ Cycloalkyl groups, substituted C １ -C １０ Heterocycloalkyl groups, substituted C ３ -C １０ Cycloalkenyl Groups, Substituted C １ -C １０ Heterocycloalkenyl Groups, Substituted C ６ -C ６０ Aryl groups, substituted C ６ -C ６０ Aryloxy groups, substituted C ６ -C ６０ Arylthio group, substituted C １ -C ６０ The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl Group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １１ ) (Q １２ ) (Q １３ ), -N(Q １１ ) (Q １２ ), -B(Q １１ ) (Q １２ ), -C(=O)(Q １１ ), -S(=O) ２ (Q １１ ) and -P(=O)(Q １１ ) (Q １２ C is substituted with at least one selected from １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ２１ ) (Q ２２ ) (Q ２３ ), -N(Q ２１ ) (Q ２２ ), -B(Q ２１ ) (Q ２２ ), -C(=O)(Q ２１ ), -S(=O) ２ (Q ２１ ) and -P(=O)(Q ２１ ) (Q ２２ C is substituted with at least one selected from ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; and -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -N(Q ３１ ) (Q ３２ ), -B(Q ３１ ) (Q ３２ ), -C(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ) and -P(=O)(Q ３１ ) (Q ３２ ); Q １ ~Q ３ , Q １１ ~Q １３ , Q ２１ ~Q ２３ , and Q ３１ ~Q ３３ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, C １ -C ６０ Heteroaryloxy group, C １ -C ６０ C substituted with at least one selected from the group consisting of a heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic hetero-condensed polycyclic group, deuterium, -F, and a cyano group. １ -C ６０ C substituted with at least one selected from an alkyl group, a deuterium, -F, and a cyano group ６ -C ６０ is selected from the group consisting of an aryl group, a biphenylyl group, and a terphenylyl group.

2. the first electrode is an anode; the second electrode is a cathode; the organic layer further includes a hole transport region interposed between the first electrode and the light emitting layer, and an electron transport region interposed between the light emitting layer and the second electrode; The hole transport region includes a hole injection layer, a hole transport layer, a buffer layer, a light-emitting auxiliary layer, and an electron blocking layer. layers, The organic electroluminescent device of claim 1, wherein the electron transport region includes at least one layer selected from the group consisting of a hole blocking layer, an electron transport layer, and an electron injection layer.

3. 2. The organic electroluminescent device according to claim 1, wherein the organometallic compound is contained in the light-emitting layer.

4. 4. The organic electroluminescent device according to claim 3, wherein the light emitting layer emits blue light having a maximum emission wavelength of 400 nm to 500 nm.

5. the light-emitting layer comprises a host and a dopant; 4. The organic electroluminescent device according to claim 3, wherein the dopant comprises the organometallic compound.

6. the light-emitting layer further comprises a host; The organic electroluminescent device of claim 3 , wherein the host comprises a silicon-containing compound, a phosphine oxide-containing compound, or a combination thereof.

7. the electron transport region comprises a hole blocking layer; the hole blocking layer is in direct contact with the light emitting layer; 3. The organic electroluminescent device according to claim 2, wherein the hole blocking layer contains a phosphine oxide-containing compound or a silyl-containing compound.

8. An organometallic compound represented by the following chemical formula 1. 【Chemistry 2】 ...(chemical formula 1) (In the above Chemical Formula 1, M １１ is selected from platinum (Pt), palladium (Pd), copper (Cu), silver (Ag), gold (Au), rhodium (Rh), iridium (Ir), ruthenium (Ru), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb) and thulium (Tm); A １０ is (i) a 5-membered heterocyclic group, or ３ -C ６０ Carbocyclic groups and C １ -C ６０ at least one of the heterocyclic groups is a condensed 5-membered heterocyclic group, A ２０ , A ３０ and A ４０ are, independently of each other, C ５ -C ６０ Carbocyclic groups and C １ -C ６０ heterocyclic groups, X １１ is N(R ５０ ) ｂ５０ , O or S; X １２ is O or S, Y ２０ , Y ３０ and Y ４０ are, independently of each other, N or C, Y ２１ , Y ２２ , Y ３１ , Y ３２ , Y ４１ and Y ４２ are, independently of each other, N or C, T １１ ~T １４ are each independently selected from a coordinate bond, a covalent bond, *-O-*' and *-S-*'; L １１ ~L １４ are each independently a single bond, *-O-*', *-S-*', *-C(R １ ) (R ２ )-*', *-C(R １ ) = *', * = C(R １ )-*', *-C(R １ ) = C(R ２ )-*', *-C(=O)-*', *-C(=S)-*', *-C≡C-*', *-B(R １ )-*', *-N(R １ )-*', *-P(R １ )-*', *-Si(R １ ) (R ２ )-*', *-P(R １ ) (R ２ )-*' and *-Ge(R １ ) (R ２ )-*', a11 to a14 are each independently selected from the group consisting of 0, 1, 2, 3, 4 and 5; R １ , R ２ , R １０ , R ２０ , R ３０ , R ４０ and R ５０ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C １ -C ６０ Alkyl group, substituted or unsubstituted C ２ -C ６０ Alkenyl group, substituted or unsubstituted C ２ -C ６０ Alkynyl group, substituted or unsubstituted C １ -C ６０ Alkoxy group, substituted or unsubstituted C ３ -C １０ Cycloalkyl groups, substituted or unsubstituted C １ -C １０ Heterocycloalkyl group, substituted or unsubstituted C ３ -C １０ Cycloalkenyl group, substituted or unsubstituted C １ -C １０ Heterocycloalkenyl group, substituted or unsubstituted C ６ -C ６０ Aryl group, substituted or unsubstituted C ６ -C ６０ Aryloxy group, substituted or unsubstituted C ６ -C ６０ Arylthio group, substituted or unsubstituted C １ -C ６０ Heteroaryl group, substituted or unsubstituted C １ -C ６０ Heteroaryloxy group, substituted or unsubstituted C １ -C ６０ a heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １ ) (Q ２ ) (Q ３ ), -B(Q １ ) (Q ２ ), -N(Q １ ) (Q ２ ), -P(Q １ ) (Q ２ ), -C(=O)(Q １ ), -S(=O)(Q １ ), -S(=O) ２ (Q １ ), -P(=O)(Q １ ) (Q ２ ), and -P(=S)(Q １ ) (Q ２ ) is selected from R １ , R ２ , R １０ , R ２０ , R ３０ , R ４０ and R ５０ Two or more of the adjacent C groups are selectively bonded to each other to form substituted or unsubstituted C ５ -C ６０ A carbocyclic group or a substituted or unsubstituted C １ -C ６０ form a heterocyclic group or are not bonded to each other, b10, b20, b30 and b40 are independently selected from 1, 2, 3, 4, 5, 6, 7 and 8; b50 is 0 or 1; * and *' are bonding positions to adjacent atoms, The substituted C １ -C ６０ Alkyl groups, substituted C ２ -C ６０ Alkenyl Groups, Substituted C ２ -C ６０ Alkynyl Group, Substituted C １ -C ６０ Alkoxy groups, substituted C ３ -C １０ Cycloalkyl groups, substituted C １ -C １０ Heterocycloalkyl groups, substituted C ３ -C １０ Cycloalkenyl Groups, Substituted C １ -C １０ Heterocycloalkenyl Groups, Substituted C ６ -C ６０ Aryl groups, substituted C ６ -C ６０ Aryloxy groups, substituted C ６ -C ６０ Arylthio group, substituted C １ -C ６０ The substituents of the heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Haeta Cycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q １１ ) (Q １２ ) (Q １３ ), -N(Q １１ ) (Q １２ ), -B(Q １１ ) (Q １２ ), -C(=O)(Q １１ ), -S(=O) ２ (Q １１ ) and -P(=O)(Q １１ ) (Q １２ C is substituted with at least one selected from １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group and C １ -C ６０ Alkoxy group; C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amidino group, hydrazino group, hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q ２１ ) (Q ２２ ) (Q ２３ ), -N(Q ２１ ) (Q ２２ ), -B(Q ２１ ) (Q ２２ ), -C(=O)(Q ２１ ), -S(=O) ２ (Q ２１ ) and -P(=O)(Q ２１ ) (Q ２２ C is substituted with at least one selected from ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl groups, monovalent non-aromatic condensed polycyclic groups, and monovalent non-aromatic condensed heteropolycyclic groups; and -Si(Q ３１ ) (Q ３２ ) (Q ３３ ), -N(Q ３１ ) (Q ３２ ), -B(Q ３１ ) (Q ３２ ), -C(=O)(Q ３１ ), -S(=O) ２ (Q ３１ ) and -P(=O)(Q ３１ ) (Q ３２ ); Q １ ~Q ３ , Q １１ ~Q １３ , Q ２１ ~Q ２３ , and Q ３１ ~Q ３３ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C ３ -C １０ Cycloalkyl group, C １ -C １０ Heterocycloalkyl group, C ３ -C １０ Cycloalkenyl group, C １ -C １０ Heterocycloalkenyl group, C ６ -C ６０ Aryl group, C ６ -C ６０ Aryloxy group, C ６ -C ６０ Arylthio group, C １ -C ６０ Heteroaryl group, C １ -C ６０ Heteroaryloxy group, C １ -C ６０ C substituted with at least one selected from the group consisting of a heteroarylthio group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic hetero-condensed polycyclic group, deuterium, -F, and a cyano group. １ -C ６０ C substituted with at least one selected from an alkyl group, a deuterium, -F, and a cyano group ６ -C ６０ is selected from the group consisting of an aryl group, a biphenylyl group, and a terphenylyl group.

9. M １１ 9. The organometallic compound of claim 8, wherein is selected from the group consisting of Pt, Pd, Cu, Ag and Au.

10. A １０ is a group represented by any one selected from the following formulas A10-1 to A10-7. 【Chemistry 3】 (In the above chemical formulas A10-1 to A10-7, Y １１ is O, S, N (R １１ ) or C(R １１ ) (R １２ ) and X １３ is N or C(R １３ ) and X １４ is N or C(R １４ ) and X １５ is N or C(R １５ ) and X １６ is N or C(R １６ ) and X １７ is N or C(R １７ ) and X １８ is N or C(R １８ ) and X １９ is N or C(R １９ ) and R 11 to R 19 are each independently a hydrogen atom, a deuterium atom, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 1 -C 60 heteroaryloxy group, a substituted or unsubstituted C 1 -C 60 heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(═O)(Q 1 ), -S(═O)(Q 1 ), -S(═O) 2 (Q 1 ), -P(═O)(Q 1 )(Q 2 ), and -P(═S)(Q 1 ) (Q 2 ).

11. A ２０ , A ３０ and A ４０ are each independently selected from the group represented by any one of the following formulas 2-1 to 2-43: 【Chemistry 4】 【Chemistry 5】 【Chemistry 6】 【Chemistry 7】 【Chemistry 8】 (In the above Chemical Formula 2-1 to Chemical Formula 2-43, X ２１ ~X ２３ are each independently C(R ２４ ) and C-*, where X ２１ ~X ２３ At least two of the above are C-*; X ２４ is N-*, X ２５ and X ２６ are each independently C(R ２４ ) and C-*, where X ２５ and X ２６ At least one of the groups is C-*; X ２７ and X ２８ are each independently N, N(R ２５ ) and N-*, X ２９ is C(R ２４ ) and C-*, wherein i) X ２７ and X ２８ At least one of the above is N-*, and X ２９ is C-*, or ii) X ２７ and X ２８ is N-*, and X ２９ is C(R ２４ ) and R 21 to R 25 are each independently a hydrogen atom, a deuterium atom, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 1 -C 60 heteroaryloxy group, a substituted or unsubstituted C 1 -C 60 heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(═O)(Q 1 ), -S(═O)(Q 1 ), -S(═O) 2 (Q 1 ), -P(═O)(Q 1 )(Q 2 ), and -P(═S)(Q 1 ) (Q 2 ), b21 is selected from 1, 2 and 3; b22 is selected from 1, 2, 3, 4 and 5; b23 is selected from 1, 2, 3, and 4; b24 is selected from 1 and 2; * indicates the bond site with the adjacent atom.)

12. A ３０ and A ４０ are each independently a group represented by any one of Chemical Formulas 2-1 to 2-9.

13. X １１ The organometallic compound according to claim 8, characterized in that: is N.

14. Y ２０ is N, Y ３０ and Y ４０ The organometallic compound according to claim 8, characterized in that

15. L １１ ~L １４ are each independently a single bond, *-O-*', *-S-*', *-N(R １ )-*', *-C(R １ ) (R ２ )-*', *-Si(R １ ) (R ２ )-*' and *-B(R １ 9. The organometallic compound according to claim 8, characterized in that the compound is selected from the group consisting of aryl, aryloxy ...

16. 9. The organometallic compound according to claim 8, wherein a11 is 0, and a12 to a14 are each 1.

17. R １ , R ２ , R １０ , R ２０ , R ３０ , R ４０ and R ５０ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a cyano group, C １ -C ２０ Alkyl group and C １ -C ２０ Alkoxy group; C substituted with at least one selected from the group consisting of deuterium, -F, -Cl, -Br, -I, a cyano group, a phenyl group, and a biphenylyl group; １ -C ２０ Alkyl group and C １ -C ２０ Alkoxy groups; and A group represented by any one of the following formulas 5-1 to 5-27 and 6-1 to 6-55; R １ , R ２ , R １０ , R ２０ , R ３０ , R ４０ and R ５０ The organometallic compound according to claim 8, characterized in that adjacent two or more of the following are selectively bonded to each other to form a cyclopentane group, a cyclohexane group, a benzene group, a naphthylene group, a fluorene group, or a carbazole group, or are not bonded to each other. 【Chemistry 9】 【Chemistry 10】 【Chemistry 11】 【Chemistry 12】 【Chemistry 13】 【Chemistry 14】 【Chemistry 15】 【Chemistry 16】 (In the above Chemical Formula 5-1 to Chemical Formula 5-27 and Chemical Formula 6-1 to Chemical Formula 6-55, Y ３ is O, S, C (Z ３４ ) (Z ３５ ), N(Z ３４ ) or Si(Z ３４ ) (Z ３５ ) and Z ３１ ~Z ３５ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, C １ -C ２０ Alkyl group, C １ -C ２０ Alkenyl group, C １ -C ２０ Alkynyl group, C １ -C ２０ selected from the group consisting of alkoxy, phenyl, biphenylyl, terphenylyl, naphthyl, fluorenyl, spiro-bifluorenyl, phenanthrenyl, anthracenyl, triphenylenyl, pyridinyl, pyrimidinyl, carbazolyl and triazinyl; e2 is 1 or 2; e3 is an integer selected from 1 to 3; e4 is an integer selected from 1 to 4; e5 is an integer selected from 1 to 5; e6 is an integer selected from 1 to 6; e7 is an integer selected from 1 to 7; e9 is an integer selected from 1 to 9; * indicates the bond position to the adjacent atom.

18. The organometallic compound according to claim 8, wherein the organometallic compound represented by Chemical Formula 1 is a compound represented by any one of the following Chemical Formulas 1A to 1G: 【Chemistry 17】 ...(Chemical formula 1-A) 【Chemistry 18】 ...(Chemical formula 1-B) 【Chemistry 19】 ...(Chemical formula 1-C) 【Chemistry 20】 ...(Chemical formula 1-D) 【Chemistry 21】 ...(Chemical formula 1-E) 【Chemical 22】 ...(Chemical formula 1-F) 【Chemistry 23】 ...(Chemical formula 1-G) (In the above Chemical Formula 1A to Chemical Formula 1G, Y １１ is O, S, N (R １１ ) or C(R １１ ) (R １２ ) and X １３ is N or C(R １３ ) and X １４ is N or C(R １４ ) and X １５ is N or C(R １５ ) and X １６ is N or C(R １６ ) and X １７ is N or C(R １７ ) and X １８ is N or C(R １８ ) and X １９ is N or C(R １９ ) and R 11 to R 19 are each independently a hydrogen atom, a deuterium atom, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 1 -C 60 heteroaryloxy group, a substituted or unsubstituted C 1 -C 60 heteroarylthio group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(═O)(Q 1 ), -S(═O)(Q 1 ), -S(═O) 2 (Q 1 ), -P(═O)(Q 1 )(Q 2 ), and -P(═S)(Q 1 ) (Q 2 ), In the above Chemical Formula 1A to Chemical Formula 1D, Chemical Formula 1F, and Chemical Formula 1G, X １１ N (R ５０ ) ｂ５０ then b50 is 1; In the above Formula 1E, X １１ N (R ５０ ) ｂ５０ If so, then b50 is 0.

19. The organometallic compound according to claim 8, wherein the organometallic compound represented by Chemical Formula 1 is a compound represented by any one selected from the following Chemical Formulas 10-1 to 10-25: 【Chemistry 24】 【Chemistry 25】 【Chemistry 26】 【Chemistry 27】 【Chemistry 28】 【Chemical 29】 【Chemistry 30】 (In the above Chemical Formula 10-1 to Chemical Formula 10-25, X, X′ and X″ are each independently O or S; R 11 to R 14 , R 21 to R 27 , R 31 to R 36 , and R 41 to R 43 each independently represent a hydrogen atom, a deuterium atom, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl groups, substituted or unsubstituted C 6 -C 60 aryl groups, substituted or unsubstituted C 6 -C 60 aryloxy groups, substituted or unsubstituted C 6 -C 60 arylthio groups, substituted or unsubstituted C 1 -C 60 heteroaryl groups, substituted or unsubstituted C 1 -C 60 heteroaryloxy groups, substituted or unsubstituted C 1 -C 60 heteroarylthio groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, -Si(Q 1 )(Q 2 )(Q 3 ), -B(Q 1 )(Q 2 ), -N(Q 1 )(Q 2 ), -P(Q 1 )(Q 2 ), -C(═O)(Q 1 ), -S(═O)(Q 1 ), -S(═O) 2 (Q 1 ), -P(═O)(Q 1 )(Q 2 ), and -P(═S)(Q 1 )(Q 2 ).

20. The organometallic compound according to claim 8, wherein the organometallic compound represented by the formula 1 is selected from the group consisting of Compounds 1 to 86 below: 【Chemistry 31】 【Chemistry 32】 【Chemical Formula 33】 【Chemical Formula 34】 【Chemistry 35】

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