Condensed cyclic compound, light-emitting device including the same, and electronic apparatus including light-emitting device

Abstract

To provide a condensed cyclic compound that emits blue light having a relatively large oscillator strength, a relatively narrow full width at half maximum, and a short-wavelength shift.SOLUTION: The present invention provides a condensed cyclic compound represented by Formula 1 below, a light-emitting device including the same, and an electronic apparatus including the light-emitting device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fused ring compound, a light-emitting element containing the same, and an electronic device containing the light-emitting element. [Background technology]

[0002] Among light emitting devices, organic light emitting devices are self-emitting devices that have a wider viewing angle, better contrast, shorter response time, and superior luminance, driving voltage, and response speed characteristics compared to conventional devices, and are capable of being multicolored.

[0003] According to one example, an organic light emitting device includes an anode, a cathode, and an intermediate layer disposed between the anode and the cathode and including a light emitting layer. A hole transport region is provided between the anode and the light emitting layer, and an electron transport region is provided between the light emitting layer and the cathode. Holes injected from the anode move to the light emitting layer via the hole transport region, and electrons injected from the cathode move to the light emitting layer via the electron transport region. The holes and electrons recombine in the light emitting layer region to generate excitons. The excitons transition from an excited state to a ground state to generate light. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a novel condensed cyclic compound, a light-emitting device employing the same, and an electronic device including the light-emitting device. [Means for solving the problem]

[0005] According to one embodiment, there is provided a fused ring compound represented by the following Chemical Formula 1: [ka] In the above formula 1, Ar 0 is a group represented by the following chemical formula 2, [ka] In the above Chemical Formula 1 and Chemical Formula 2, Ring Y 1 Or Ring Y 3 are independent of each other, C 5 -C 60 Carbocyclic group or C 3 -C 60 is a heterocyclic group, W 1 is a single bond, O, S, N(Ar 1 ), N(T 11 ), C(T 12 )(T 13 ), or Si(T 12 )(T 13 ) and W 2 is a single bond, O, S, N(Ar 2 ), N(T 21 ), C(T 22 )(T 23 ), or Si(T 22 )(T 23 ) and n1 and n2 are each independently 0 or 1; If n1 is 0, then *-(W 1 ) n1 -*' does not exist, If n2 is 0, then *-(W 2 ) n2 -*' does not exist, The sum of n1 and n2 is 1 or greater, Ar 1 and Ar 2 Each of the groups represented by Chemical Formula 2 is R 0 teeth, Hydrogen, deuterium, -F or cyano group, or C substituted or unsubstituted with deuterium, -F, cyano, or any combination thereof 1 -C 60 is an alkyl group,

[0006] R 1 Or R4 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 60 an alkyl group, or Deuterium, -F, cyano group, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted C 6 -C 60 is an aryl group, a1 is an integer from 0 to 3, a2 and a4 are each independently an integer from 0 to 4; a3 and m are each independently an integer from 0 to 5; In the above Chemical Formula 2, * is a binding site with Chemical Formula 1; Z 1 Or Z 3 , T 11 Or T 13 , and T 21 Or T 23 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF 5 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 1 -C 60 Alkylthio groups, substituted or unsubstituted C 3 -C 10 Cycloalkyl groups, substituted or unsubstituted C 1 -C10 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, -N(Q 1 )(Q 2 ), -Si(Q 3 )(Q 4 )(Q 5 ), -Ge(Q 3 )(Q 4 )(Q 5 ), -B(Q 6 )(Q 7 ), -P(=O)(Q 8 )(Q 9 ), -P(Q 8 )(Q 9 ), or a group represented by chemical formula 2, b1 and b2 are each independently an integer from 0 to 10; b3 is an integer from 1 to 5; The formula 1 satisfies at least one of the following <Condition 1> and <Condition 2>: <Condition 1> b1 is 1 or more, and b1 Z 1 At least one of the groups contains a carbazole group; <Condition 2> b2 is 1 or more, and b2 Z 2 At least one of the groups contains a carbazole group; b3 Z's 3 At least one of the C is unsubstituted or substituted with deuterium, -F, a cyano group, or any combination thereof. 1 -C 60 is an alkyl group, Z 1 , Z 2 , Z 3 , T 11 , T 12 , T 13 , T 21 , T 22 , and T 23 Two or more of the groups may be optionally linked to each other and may be substituted or unsubstituted C 5 -C 30 Carbocyclic group or substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, The substituted C 5 -C 30 Carbocyclic groups, substituted C 1 -C 30 Heterocyclic 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 1 -C 60 Alkylthio 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 60Arylthio 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, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or salt thereof, sulfonic acid group or salt thereof, phosphoric acid group or salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, or C 1 -C 60 Alkylthio groups, Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, 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 60Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -N(Q 11 )(Q 12 ), -Si(Q 13 )(Q 14 )(Q 15 ), -Ge(Q 13 )(Q 14 )(Q 15 ), -B(Q 16 )(Q 17 ), -P(=O)(Q 18 )(Q 19 ), -P(Q 18 )(Q 19 ), or any combination thereof, 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, or C 1 -C 60 Alkylthio groups, Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, 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 1 -C 60 Alkylthio group, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10Cycloalkenyl 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, -N(Q 21 )(Q 22 ), -Si(Q 23 )(Q 24 )(Q 25 ), -Ge(Q 23 )(Q 24 )(Q 25 ), -B(Q 26 )(Q 27 ), -P(=O)(Q 28 )(Q 29 ), -P(Q 28 )(Q 29 ), or any combination thereof, substituted or unsubstituted, 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 a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group; -N(Q 31 )(Q 32 ), -Si(Q 33 )(Q 34 )(Q 35 ), -Ge(Q 33 )(Q 34 )(Q 35 ), -B(Q36 )(Q 37 ), -P(=O)(Q 38 )(Q 39 ), or -P(Q 38 )(Q 39 ),or Any combination thereof, The above Q 1 Or Q 9 , Q 11 Or Q 19 , Q 21 Or Q 29 , and Q 31 Or Q 39 are each independently hydrogen, deuterium, -F, or deuterium, -F, cyano group, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted, 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 1 -C 60 Alkylthio 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 It is a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group.

[0007] According to another aspect, there is provided a light-emitting element comprising a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode and including a light-emitting layer, the intermediate layer including one or more of the fused ring compounds.

[0008] According to yet another aspect, there is provided an electronic device including the light-emitting element. Effect of the Invention

[0009] The fused ring compounds of the present invention have relatively large oscillator strength, relatively small full width at half maximum (FWHM), and emit blue light that is shifted to a shorter wavelength. Electronic devices, such as light-emitting devices, that employ the fused ring compounds have improved driving voltages, improved external quantum efficiency, and improved lifetime characteristics. [Brief description of the drawings]

[0010] [Figure 1] 1 is a cross-sectional view illustrating a light emitting device according to an embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [Explanation of fused ring compounds]

[0012] The fused ring compound of the present invention is represented by the following chemical formula 1. [ka] In the above formula 1, Ar 0 is a group represented by the following chemical formula 2. [ka] For the explanation of Chemical Formula 2, please refer to the description in this specification.

[0013] In formula 1, ring Y 1 Or Ring Y 3 are independent of each other, C 5 -C 60 Carbocyclic group or C3 -C 60 It is a heterocyclic group.

[0014] According to one embodiment, the ring Y 1 Or Ring Y 3 are each independently a benzene group, a naphthalene group, a phenanthrene group, a pyridine group, a pyrimidine group, a pyridazine group, a pyrazine group, a quinoline group, an isoquinoline group, a dibenzofuran group, a dibenzothiophene group, a carbazole group, a fluorene group, a dibenzosilole group, an azadibenzofuran group, an azadibenzothiophene group, an azacarbazole group, an azafluorene group, or an azadibenzosilole group.

[0015] According to another embodiment, the ring Y 1 Or Ring Y 3 are each independently a benzene group, a naphthalene group, a dibenzofuran group, a dibenzothiophene group, a carbazole group, a fluorene group, or a dibenzosilole group.

[0016] In formula 1, W 1 is a single bond, O, S, N(Ar 1 ), N(T 11 ), C(T 12 )(T 13 ), or Si(T 12 )(T 13 ), and W 2 is a single bond, O, S, N(Ar 2 ), N(T 21 ), C(T 22 )(T 23 ), or Si(T 22 )(T 23 ), where Ar 1 and Ar 2 Each of the groups represented by formula 2 is 11 Or T 13 , and T 21 Or T 23 For the relevant explanation, please refer to the description in this specification.

[0017] In Chemical Formula 1, n1 and n2 are each independently 0 or 1. When n1 is 0, *-(W 1 ) n1 -*' does not exist, and if n2 is 0, then *-(W 2 ) n2 -*' does not exist, and the sum of n1 and n2 is 1 or greater.

[0018] For example, in formula 1, i) n1 is 1 and n2 is 0, or ii) n1 is 0 and n2 is 1, or iii) each of n1 and n2 is 1;

[0019] According to one embodiment, in Formula 1, n1 is 1, and W 1 is N(Ar 1 ) or N(T 11 ).

[0020] According to another embodiment, in Formula 1, n2 is 1 and W 2 is N(Ar 2 ) or N(T 21 ).

[0021] According to yet another embodiment, in Formula 1, n1 is 1 and W 1 is N(Ar 1 ) and Ar 0 and Ar 1 are identical to each other.

[0022] According to yet another embodiment, in Formula 1, n1 is 1 and W 1 is N(Ar 1 ) and Ar 0 and Ar 1 are different from each other.

[0023] According to yet another embodiment, in Formula 1, n2 is 1 and W 2 is N(Ar 2 ) and Ar 0 and Ar 2 are identical to each other.

[0024] According to yet another embodiment, in Formula 1, n2 is 1 and W 2 is N(Ar 2 ) and Ar 0 and Ar 2 are different from each other.

[0025] In chemical formula 2, R 0 teeth, Hydrogen, deuterium, -F, or a cyano group; or C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 60 an alkyl group; R 1 Or R 4 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 60 an alkyl group; or Deuterium, -F, cyano group, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted C 6 -C 60 an aryl group;

[0026] For example, in formula 2, R 0 teeth, Hydrogen, deuterium, -F, or a cyano group; or C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group; R 1 Or R 4 are independent of each other, Hydrogen, deuterium, -F or cyano group; C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group; or Deuterium, -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof; In the chemical formula 2, a1 to a4 and m are each R 1 Or R 4 and the number of phenylene groups, where a1 is an integer of 0 to 3, a2 and a4 are each independently an integer of 0 to 4, and a3 and m are each independently an integer of 0 to 5. When a1 is 2 or more, two or more R 1 are the same or different, and when a2 is 2 or more, two or more R 2 are the same or different from each other, and when a3 is 2 or more, two or more R 3 are the same or different from each other, and when a4 is 2 or more, two or more R 4 are the same as or different from each other. For example, m is 0 or 1.

[0027] In Chemical Formula 2, * represents a bonding site with Chemical Formula 1.

[0028] According to one embodiment, in Formula 2, a2 ​​is 1; 2 is deuterium, -F, cyano group, C 1 -C 20 The alkyl group, the phenyl group, or the phenyl group substituted or unsubstituted with any combination thereof.

[0029] In this specification, C 1 -C 60 Alkyl group or C 1 -C 20Examples of alkyl groups include methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neo-pentyl, iso-pentyl, sec-pentyl, 3-pentyl, and sec-iso-pentyl groups.

[0030] In formula 1, Z 1 Or Z 3 , T 11 Or T 13 , and T 21 Or T 23 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF 5 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 1 -C 60 Alkylthio 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 60Arylthio 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, -N(Q 1 )(Q 2 ), -Si(Q 3 )(Q 4 )(Q 5 ), -Ge(Q 3 )(Q 4 )(Q 5 ), -B(Q 6 )(Q 7 ), -P(=O)(Q 8 )(Q 9 ), -P(Q 8 )(Q 9 ) or a group represented by chemical formula 2.

[0031] For example, the above Z 1 Or Z 3 , T 11 Or T 13 , and T 21 Or T 23 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; Deuterium, -F, cyano group, C 1 -C 20 C substituted or unsubstituted with an alkyl group, a phenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, a dibenzosilolyl group, or any combination thereof; 1 -C 20 an alkyl group, a phenyl group, a biphenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, or a dibenzosilolyl group; or -N(Q 1 )(Q 2 ); and Q 1 and Q 2 are independently deuterium, -F, cyano group, C 1 -C 20C substituted or unsubstituted with an alkyl group, a phenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, a dibenzosilolyl group, or any combination thereof; 1 -C 20 It is an alkyl group, a phenyl group, a biphenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, or a dibenzosilolyl group.

[0032] In the chemical formula 1, b1 to b3 are each Z 1 Or Z 3 b1 and b2 are each independently an integer of 0 to 10, and b3 is an integer of 1 to 5. When b1 is 2 or more, two or more Z 1 are the same or different, and if b2 is 2 or more, two or more Z 2 are the same or different, and when b3 is 2 or more, two or more Z 3 are the same as or different from each other. For example, b1 to b3 are independently 0, 1, or 2.

[0033] Chemical formula 1 satisfies at least one of the following <Condition 1> and <Condition 2>. <Condition 1> b1 is 1 or more, and b1 Z 1 At least one of the groups contains a carbazole group. <Condition 2> b2 is 1 or more, and b2 Z 2 At least one of the groups contains a carbazole group.

[0034] According to an embodiment, Chemical Formula 1 satisfies both <Condition 1> and <Condition 2>.

[0035] According to another embodiment, in Formula 1, each of b1 and b2 is 1 or more; 1 and Z 2 At least one of the above is a group represented by the following chemical formula 3. [ka] In chemical formula 3, Z 11 Or Z 18 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group; or Deuterium, -F, cyano group, C 1 -C 20 phenyl groups, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; * indicates the binding site to Chemical Formula 1.

[0036] According to another embodiment, in Formula 3, Z 11 Or Z 18 is hydrogen or deuterium.

[0037] According to yet another embodiment, in Formula 3, Z 13 and Z 16 At least one of (e.g. Z 13 and Z 16 )teeth, C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group (e.g., a deuterated or unsubstituted tert-butyl group); or Deuterium, -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof;

[0038] According to yet another embodiment, Z of Formula 3 11 Or Z 18 at least one of, independently of each other, is deuterium; or a fourth group substituted with at least one deuterium, wherein the fourth group is -C substituted or unsubstituted with F, cyano, or any combination thereof 1 -C 20 an alkyl group; or -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof;

[0039] As used herein, the term "a fourth group substituted with at least one deuterium" refers to a substituent in which at least one hydrogen in the fourth group is replaced with a deuterium. For example, a "fourth group substituted with at least one deuterium" is -CD 3 , -CD 2 H, -CDH 2 , -CD 2 F, -C(CD 3 ) 3 , -C 6 D 5 , -C 6 D 2 H 3 , -C 6 D 4 (CH 3 ), -C 6 H 4 (CD 3 ), -C 6 D 4 (CD 3 ), -C 6 F 4 (CD 3 ), -C 6 D 4 (C 6 H 5 In this specification, the terms "a first group substituted with at least one deuterium", "a second group substituted with at least one deuterium", and "a third group substituted with at least one deuterium" are understood in the same manner.

[0040] According to yet another embodiment, in Formula 1, each of b1 and b2 is 1; 1 and Z 2 are deuterium, -F, cyano group, and C 1 -C20 It is an N-carbazolyl group which is unsubstituted or substituted with an alkyl group, a phenyl group, or any combination thereof.

[0041] In the present specification, the term "N-carbazolyl group" refers to a monovalent group in which a hydrogen atom is separated from the N of a carbazole group and the group is bonded to another group. It is represented as TIFF2025021471000007.tif23128 (where * indicates a bonding site with an adjacent atom).

[0042] In chemical formula 1, b3 Z 3 At least one of the C is unsubstituted or substituted with deuterium, -F, a cyano group, or any combination thereof. 1 -C 60 Alkyl groups (e.g., C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof) 1 -C 20 alkyl group).

[0043] According to one embodiment, in Formula 1, b3 Z 3 At least one of the groups is a tert-butyl group which is unsubstituted or substituted with at least one deuterium.

[0044] According to another embodiment, in Formula 1, b3 is 1; 3 is C, unsubstituted or substituted with deuterium, -F, cyano, or any combination thereof; 1 -C 20 It is an alkyl group (eg, a tert-butyl group that is unsubstituted or substituted with at least one deuterium).

[0045] According to yet another embodiment, the group represented by Formula 2 is a group represented by one of the following Formulas 2-1 to 2-3: [ka] [ka] [ka] Chemical formula 2-1 to 2-3: R 0 The explanation regarding is the same as that described in this specification, R 11 Or R 13 The explanation for each of these is given in this specification under the heading R 1 The explanation is the same as that given in R 21 Or R 24 The explanation for each of these is given in this specification under the heading R 2 The explanation is the same as that given in R 31 Or R 35 The explanation for each of these is given in this specification under the heading R 3 The explanation is the same as that given in * indicates the bonding site with nitrogen in chemical formula 1.

[0046] For example, chemical formulas 2-1 to 2-3 satisfy <Condition 3> to <Condition 5>, respectively. <Condition 3> 3a) R 11 Or R 13 each of is hydrogen or deuterium, 3b) R 12 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 3c) R 11 Or R 13 at least one of, independently of each other, is deuterium; or a first group substituted with at least one deuterium, wherein the first group is -C substituted or unsubstituted with F, cyano, or any combination thereof 1 -C 20 an alkyl group; or -F, cyano group, C 1 -C 20an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof; <Condition 4> 4a) R 21 Or R 24 each of is hydrogen or deuterium, 4b) R 22 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 4c)R 22 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 4d) R 24 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 4e)R 24 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with an alkyl group, a phenyl group, or any combination thereof; or 4f)R 21 Or R 24 are, independently of each other, deuterium; or a second group substituted with at least one deuterium, where the second group is -C substituted or unsubstituted with F, cyano, or any combination thereof 1 -C 20 an alkyl group; or -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof; <Condition 5> 5a) R 31 Or R35 each of is hydrogen or deuterium, 5b)R 31 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 5c)R 31 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 5d)R 32 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 5e)R 32 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 5f)R 33 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 is an alkyl group, 5g)R 33 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 5h)R 32 and R 34 But independently of each other, C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); or Deuterium, -F, cyano group, C 1 -C 20a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 5i)R 31 Or R 35 are, independently of each other, deuterium; or a third group substituted with at least one deuterium, wherein the third group is -C substituted or unsubstituted with F, cyano, or any combination thereof 1 -C 20 an alkyl group; or -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof;

[0047] According to still another embodiment, the number of benzene groups (e.g., benzene groups contained in the group represented by Chemical Formula 2 that are not condensed with each other and are connected to each other via a single bond) contained in the group represented by Chemical Formula 2 is 4 or more, for example, 4, 5, or 6.

[0048] According to yet another embodiment, the group represented by Chemical Formula 2 is a group represented by the following Chemical Formula 2-1(1): [ka] In chemical formula 2-1(1), R 0 The explanation regarding is the same as that described in this specification, R 11 Or R 13 The explanation for each of these is given in this specification under the heading R 1 The explanation is the same as that given in R 21 , R 23 and R 24 The explanation for each of these is given in this specification under the heading R 2 The explanation is the same as that given in R 31 Or R 35 The explanation for each of these is given in this specification under the heading R 3The explanation is the same as that given in R 25 Or R 29 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; or C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group; * indicates the binding site to Chemical Formula 1.

[0049] For example, chemical formula 2-1(1) satisfies <Condition 3> and <Condition 5> related to chemical formula 2-1, and the following <Condition 6> and <Condition 7>. <Condition 6> 6a)R 21 , R 23 , and R 24 each of is hydrogen or deuterium, 6b) R23 is C substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof. 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 6c)R 21 , R 23 , and R 24 at least one of the following is independently selected from the group consisting of: -C substituted or unsubstituted with F, cyano, or any combination thereof 1 -C 20 an alkyl group; or -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof; <Condition 7> 7a)R 25 Or R 29 each of is hydrogen or deuterium, 7b)R 25is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 7c)R 25 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 7d) R 26 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); 7e)R 26 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 7f)R 27 is C, substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; 1 -C 20 is an alkyl group, 7g)R 27 Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 7h)R 26 and R 28 are independent of each other, C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group (e.g., a deuterium-substituted or unsubstituted tert-butyl group); or Deuterium, -F, cyano group, C 1 -C 20 a phenyl group, substituted or unsubstituted with alkyl groups, phenyl groups, or any combination thereof; 7i)R 25 Or R 29 are, independently of each other, deuterium; or a sixth group substituted with at least one deuterium, wherein the sixth group is -C substituted or unsubstituted with F, cyano, or any combination thereof 1 -C 20 an alkyl group; or -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof;

[0050] According to yet another embodiment, in Formula 2-1(1), R 31 and R 25 are independent of each other, C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group (e.g., a deuterated or unsubstituted tert-butyl group); or Deuterium, -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof;

[0051] According to yet another embodiment, in Formula 2-1(1), R 32 and R 26 are independent of each other, C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group (e.g., a deuterated or unsubstituted tert-butyl group); or Deuterium, -F, cyano group, C 1 -C 20 alkyl groups, phenyl groups, or phenyl groups unsubstituted or substituted with any combination thereof;

[0052] According to yet another embodiment, in Formula 2-1(1), R 33and R 27 are independent of each other, C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 an alkyl group (e.g., a deuterated or unsubstituted tert-butyl group); or Deuterium, -F, cyano group, C 1 -C 20 an alkyl group, a phenyl group, or a phenyl group unsubstituted or substituted with any combination thereof;

[0053] In formula 1, Z 1 , Z 2 , Z 3 , T 11 , T 12 , T 13 , T 21 , T 22 , and T 23 Two or more of the substituted or unsubstituted C 5 -C 30 Carbocyclic group or substituted or unsubstituted C 1 -C 30 It forms a heterocyclic group.

[0054] According to one embodiment, in Formula 1, Z 1 , Z 2 , Z 3 , T 11 , T 12 , T 13 , T 21 , T 22 , and T 23 Two or more of the C 5 -C 30 Carbocyclic group or substituted or unsubstituted C 1 -C 30 As a result, the fused ring compound is represented, for example, by the following chemical formula 1-1, 1-2, or 1-3. [ka] [ka] [ka] In the chemical formulas 1-1, 1-2, and 1-3, Ar 0 , ring Y 1 , ring Y 3 , W 1 , W 2 , n1, n2, Z 1 , Z 3 The explanations for each of b1, b2, and b3 are the same as those described in this specification, Ring Y 21 and ring Y 22 are independent of each other, C 5 -C 60 Carbocyclic group or C 3 -C 60 is a heterocyclic group, W 3 is a single bond, O, S, N(Ar 3 ), N(T 31 ), C(T 32 )(T 33 ), or Si(T 32 )(T 33 ) and W 4 is a single bond, O, S, N(Ar 4 ), N(T 41 ), C(T 42 )(T 43 ), or Si(T 42 )(T 43 ) and W 5 is a single bond, O, S, N(Ar 5 ), N(T 51 ), C(T 52 )(T 53 ), or Si(T 52 )(T 53 ) and n3 to n5 are each independently 0 or 1; If n3 is 0, then *-(W 3 ) n3 -*' does not exist, If n4 is 0, then *-(W 4 ) n4-*' does not exist, If n5 is 0, then *-(W 5 ) n5 -*' does not exist, In chemical formulas 1-1 and 1-2, the sum of n1 and n2 is 1 or more; In Chemical Formula 1-1, the sum of n3, n4, and n5 is 1 or more; In chemical formulas 1-2 and 1-3, the sum of n3 and n4 is 1 or more; Ar 3 Or Ar 5 each of which is a group represented by formula 2: Z 20 Or Z 22 The explanation for each of these is given in the present specification under the heading Z 2 The explanation is the same as that given in b21 and b22 are each independently an integer from 0 to 5; Each of the chemical formulas 1-1, 1-2, and 1-3 satisfies at least one of the following <Condition 1A> and <Condition 2A>, <Condition 1A> b1 is 1 or more, and b1 Z 1 At least one of the groups contains a carbazole group. <Condition 2A> At least one of the following a), b), and c) is satisfied: a) b21 is 1 or more, and b21 Z 21 At least one of the groups contains a carbazole group. b) Z 20 contains a carbazole group. c) b22 is 1 or more, and b22 Z 22 At least one of the groups contains a carbazole group.

[0055] Ring Y 21 and ring Y 22 The explanation for each of the above is given in the present specification with reference to the ring Y 1 Please refer to the explanation related to.

[0056] According to an embodiment, the fused ring compound represented by Formula 1 includes at least one deuterium, at least one tert-butyl group, or any combination thereof.

[0057] According to another embodiment, the fused ring compound represented by Formula 1 has a symmetric structure.

[0058] According to yet another embodiment, the fused ring compound represented by Formula 1 has an asymmetric structure.

[0059] According to yet another embodiment, the fused ring compound is represented by Formula 1A: [ka] In formula 1A, W 1 is O, S, N(Ar 1 ), N(T 11 ), C(T 12 )(T 13 ), or Si(T 12 )(T 13 ) and Ar 0 , Ar 1 , and T 11 Or T 13 The explanations for each of the above are the same as those described in this specification, Z 11 and Z 12 The explanation for each of these is given in the present specification under the heading Z 1 The explanation is the same as that given in Z 21 and Z 22 The explanation for each of these is given in the present specification under the heading Z 2 The explanation is the same as that given in Z 11 , Z 12 , Z 21 , and Z 22 At least one of the following is a deuterium atom, -F, a cyano group, or C 1 -C 20 an N-carbazolyl group unsubstituted or substituted with alkyl groups, phenyl groups, or any combination thereof; Z 3 is C, unsubstituted or substituted with deuterium, -F, cyano, or any combination thereof; 1 -C 20 It is an alkyl group (eg, a tert-butyl group that is unsubstituted or substituted with at least one deuterium).

[0060] For example, in formula 1A, Z 11 and Z 21 are deuterium, -F, cyano group, and C 1 -C 20 an N-carbazolyl group unsubstituted or substituted with an alkyl group, a phenyl group, or any combination thereof; Z 12 and Z 22 is hydrogen or deuterium.

[0061] As another example, in formula 1A, Z 12 and Z 22 are deuterium, -F, cyano group, and C 1 -C 20 an N-carbazolyl group unsubstituted or substituted with an alkyl group, a phenyl group, or any combination thereof; Z 11 and Z 21 is hydrogen or deuterium.

[0062] According to yet another embodiment, the fused ring compound is a multiple resonance thermally activated delayed fluorescence material.

[0063] According to still other embodiments, the fused ring compound is one of Compounds 1 to 782 below. [ka] [ka]

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[0064] In formula 1, Ar 0 is a group represented by chemical formula 2, and b3 Z 3 At least one of the C is unsubstituted or substituted with deuterium, -F, a cyano group, or any combination thereof. 1 -C 60 It is an alkyl group. In addition, Chemical Formula 1 satisfies at least one of <Condition 1> and <Condition 2>. Therefore, the fused ring compound represented by Chemical Formula 1 has a relatively large HOMO (highest occupied molecular orbital) energy level absolute value and a relatively large LUMO (lowest unoccupied molecular orbital) energy level absolute value, as confirmed in Table 1 below. The HOMO energy level and the LUMO energy level in Table 1 are evaluated by Evaluation Example 1 described later. In addition, the fused ring compound represented by Chemical Formula 1 can emit blue light having a relatively large oscillator strength and a relatively small full width at half maximum (FWHM), so that an electronic device, for example, a light emitting device, using the fused ring compound has improved driving voltage, improved external quantum efficiency, and improved life characteristics.

[0065] [Table 1]

[0066] [ka]

[0067] According to an embodiment, the emission spectrum of the fused ring compound has a full width at half maximum (FWHM) of 5 nm to 30 nm, for example, 10 nm to 25 nm.

[0068] According to another embodiment, the fused ring compound has an emission spectrum with a peak emission wavelength of 400 nm to 500 nm, for example, 440 nm to 470 nm.

[0069] According to yet other embodiments, the singlet (S1) energy level of the fused ring compound is between 2.4 eV and 3.1 eV.

[0070] According to yet another embodiment, the absolute value of the difference between the singlet (S1) energy and the triplet (T1) energy of the fused ring compound is 0 eV to 1 eV.

[0071] According to yet other embodiments, the absolute value of the HOMO energy level of the fused ring compound is between 4.0 eV and 6.5 eV.

[0072] Those skilled in the art will be able to recognize methods for synthesizing the above fused ring compounds by referring to the synthesis examples described below.

[0073] [Light emitting element]

[0074] The above-mentioned fused ring compounds are suitable for use as an intermediate layer, for example, an emitting layer material in an intermediate layer of a light-emitting element. According to another aspect, there is provided a light-emitting element comprising a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode and including a emitting layer, the intermediate layer including at least one of the above-mentioned fused ring compounds.

[0075] The light-emitting device includes an intermediate layer containing at least one of the above-mentioned fused ring compounds, and thus can emit blue light having a relatively small full width at half maximum (FWHM) and shifted to a shorter wavelength, and has improved driving voltage, improved external quantum efficiency, improved luminous efficiency, and / or improved lifetime characteristics.

[0076] The fused ring compound is used between a pair of electrodes of a light-emitting device. For example, the fused ring compound is included in an emission layer. In this case, the emission layer further includes a host. The content (weight) of the host can be greater than the content of the fused ring compound. The emission layer emits red light, green light, or blue light. For example, the emission layer emits blue light.

[0077] According to an embodiment, the CIEy value of the light emitted from the light emitting layer is 0.040 to 0.170, 0.050 to 0.170, 0.060 to 0.170, 0.040 to 0.165, 0.050 to 0.165, or 0.060 to 0.165.

[0078] According to other embodiments, the emission peak wavelength of light emitted from the light emitting layer is 440nm to 470nm, 445nm to 470nm, 450nm to 470nm, 455nm to 470nm, 460nm to 470nm, 440nm to 465nm, 445nm to 465nm, 450nm to 465nm, 455nm to 465nm, or 460nm to 465nm.

[0079] The light-emitting layer further comprises a host, the description of which is set forth herein.

[0080] The first electrode is an anode that is a hole-injection electrode and the second electrode is a cathode that is an electron-injection electrode, or the first electrode is a cathode that is an electron-injection electrode and the second electrode is an anode that is a hole-injection electrode.

[0081] For example, in a light-emitting element, the first electrode is an anode, the second electrode is a cathode, and the intermediate layer further includes a hole transport region disposed between the first electrode and the light-emitting layer, and an electron transport region disposed between the light-emitting layer and the second electrode, the hole transport region including a hole injection layer, a hole transport layer, an electron blocking layer, an auxiliary layer, or any combination thereof, and the electron transport region including a buffer layer, a hole blocking layer, an electron transport layer, an electron injection layer, or any combination thereof.

[0082] In this specification, the term "intermediate layer" refers to a single and / or multiple layers disposed between a first electrode and a second electrode in a light-emitting element. The "intermediate layer" includes not only organic compounds but also organometallic complexes containing metals.

[0083] For example, the configuration of the light emitting layer is the following first or second embodiment.

[0084] <First Example>

[0085] The light-emitting layer includes at least one of the above fused ring compounds, and the fused ring compound functions as an emitter, for example, a delayed fluorescent emitter. That is, the fused ring compound is an emitter. For example, the light-emitting component emitted from the fused ring compound is 80% or more, 85% or more, 90% or more, or 95% or more of the total light-emitting components of the light-emitting layer. The light emitted from the fused ring compound is blue light. The light-emitting layer further includes a sensitizer, and the sensitizer and the fused ring compound are different from each other. The sensitizer is an organometallic compound, a delayed fluorescent material, a prompt fluorescent material, or any combination thereof. The content (weight) of the sensitizer is 0.01 to 10 parts by weight per 100 parts by weight of the light-emitting layer.

[0086] <Second embodiment>

[0087] The light-emitting layer includes at least one of the above fused ring compounds, and the fused ring compound plays the role of a sensitizer or an auxiliary dopant. That is, the fused ring compound is a sensitizer or an auxiliary dopant. The sensitizer plays the role of effectively transferring the exciton of the host to the emitter. The light-emitting layer further includes an emitter, and the emitter is different from the fused ring compound. The emitter is an organometallic compound, a prompt fluorescent material, a delayed fluorescent material, or any combination thereof.

[0088] As used herein, an emitter is a host, sensitizer, and / or co-dopant, a material into which an exciton is transferred and from which it emits light upon transition to the ground state.

[0089] In the first and second embodiments, the content of the fused ring compound is 0.01 to 40 parts by weight, 0.1 to 20 parts by weight, or 1 to 20 parts by weight per 100 parts by weight of the light emitting layer.

[0090] In the first and second embodiments, the organometallic compound includes a transition metal and n ligands bonded to the transition metal, where n is an integer from 1 to 4.

[0091] According to one embodiment, in the organometallic compound, the transition metal is platinum (Pt) or palladium (Pd), n is 1, and the ligand is a tetradentate ligand. The tetradentate ligand may, for example, include a carbene moiety bonded to the transition metal.

[0092] According to further embodiments, the organometallic compound includes a transition metal and a tetradentate ligand bound to the transition metal, the transition metal being platinum or palladium, and the tetradentate ligand including a carbene moiety bound to the transition metal.

[0093] According to yet another embodiment, in the organometallic compound, the transition metal is iridium (Ir) or osmium (Os), n is 3, and at least one of the n ligands is a bidentate ligand comprising -F, a cyano group, or a combination thereof, or a bidentate ligand comprising a carbene moiety bound to the transition metal, for example, the bidentate ligand further comprises an imidazole group or a triazole group.

[0094] According to still other embodiments, the organometallic compound is an organometallic compound represented by Formula 30 and / or an organometallic compound represented by Formula 5 described herein. Formula 30 and Formula 5 will be described later.

[0095] In the first and second embodiments, the delayed fluorescent material may be, for example, a thermally activated delayed fluorescent material. In another embodiment, the delayed fluorescent material may be a multiple resonance thermally activated delayed fluorescent material.

[0096] The multiple resonance thermally activated delayed fluorescent substance is i) free of transition metals, and ii) has two or more C 3 -C 60 Polycyclic compounds that contain a core in which cyclic groups are fused together, where the core contains two C 3 -C 60 The cyclic groups are fused to each other sharing a boron (B) or nitrogen (N).

[0097] According to an embodiment, the delayed fluorescent material is a polycyclic compound represented by Chemical Formula 4. The description of Chemical Formula 4 will be given later.

[0098] In the first and second embodiments, the prompt emitting fluorescent material is an amino group-containing compound, a styryl group-containing compound, etc. For example, the prompt emitting fluorescent material may include a naphthalene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, a phenanthrene group, an anthracene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, a naphthacene group (tetracene group), a picene group, a perylene group, a pentaphene group, an indenoanthracene group, a group represented by one of the following formulas 501-1 to 501-21, or any combination thereof. [ka]

[0099] According to another embodiment, the prompt emitting fluorescent material includes a compound represented by the following formula 501A or 501B: [ka] [ka] In the chemical formula 501A and the chemical formula 501B, Ar 501 is a naphthalene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, a phenanthrene group, an anthracene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, a naphthacene group, a picene group, a perylene group, a pentaphene group, an indenoanthracene group, a bisanthracene group, or a group represented by one of the chemical formulas 501-1 to 501-21; R 511 stands for hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60Alkynyl 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 a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, or -Si(Q 501 )(Q 502 )(Q 503 ) and xd5 is an integer from 0 to 10, L 501 Or L 503 are independent of each other, A single bond; or Deuterium, -F, -Cl, -Br, -I, hydroxyl group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or salt thereof, sulfonic acid group or salt thereof, phosphate group or salt thereof, 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 501 )(Q 502 )(Q 503 ), or any combination thereof, substituted or unsubstituted, 3 -C 10 Cycloalkylene group, C 1 -C 10 Heterocycloalkylene group, C 3 -C 10 Cycloalkenylene group, C 1 -C 10 Heterocycloalkenylene group, C 6 -C 60 Arylene group, C 1 -C 60 a heteroarylene group, a divalent non-aromatic condensed polycyclic group, or a divalent non-aromatic condensed heteropolycyclic group; xd1 to xd3 are independently 1, 2, or 3; R 501 and R 502 are each independently deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphate group or a salt thereof, 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 60Aryl 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 501 )(Q 502 )(Q 503 ), or any combination thereof, substituted or unsubstituted, phenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, pyrenyl, chrysenyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinolinyl, isoquinolinyl, quinoxalinyl, quinazolinyl, carbazole, triazinyl, dibenzofuranyl, dibenzothiophenyl, or dibenzosilolyl; Z 11 stands for deuterium, -F, -Cl, -Br, -I, hydroxyl group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or its salt, sulfonic acid group or its salt, phosphate group or its salt, 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 60Heteroaryl group, monovalent non-aromatic condensed polycyclic group, monovalent non-aromatic condensed heteropolycyclic group, -Si(Q 501 )(Q 502 )(Q 503 ), or any combination thereof, substituted or unsubstituted, 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 a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group; xd4 is 1, 2, 3, 4, 5, or 6, Q 501 Or Q 503 are each independently hydrogen, C 1 -C 60 Alkyl group, C 1 -C 60 Alkoxy group, C 6 -C 60 Aryl group, C 1 -C 60 It is a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group.

[0100] According to another embodiment, the prompt emitting fluorescent material includes a compound represented by chemical formula 501A or chemical formula 501B, where xd4 in chemical formula 501A is 1, 2, 3, 4, 5, or 6, and where xd4 in chemical formula 501B is 2, 3, or 4.

[0101] [Host information]

[0102] In the light-emitting layer, the m1 hosts include a hole-transporting compound, an electron-transporting compound, a dipolar compound, or any combination thereof. The hosts do not include a transition metal.

[0103] For example, in the light-emitting layer, m1 is 2, and two hosts in the light-emitting layer each contain a hole-transporting compound and an electron-transporting compound, and the hole-transporting compound and the electron-transporting compound are different from each other.

[0104] According to one embodiment, the hole transport compound comprises at least one π-electron rich C 3 -C 60 A compound that contains a cyclic group but does not contain an electron transporting group. Examples of the electron transporting group include a cyano group, a fluoro group, a π-electron deficient nitrogen-containing cyclic group, a phosphine oxide group, and a sulfoxide group.

[0105] As used herein, a "π-electron deficient nitrogen-containing cyclic group" refers to a ring-forming moiety having at least one -N=- moiety. 1 -C 60 Examples of the π-electron deficient nitrogen-containing cyclic group include a triazine group and an imidazole group.

[0106] In this specification, "π-electron excess C 3 -C 60 Cyclic group (π electron-rich C 3 -C 60"cyclic group" refers to a ring-forming moiety that does not contain a *-N=*' moiety. 3 -C 60 It is a cyclic group. π-electron excess C 3 -C 60 Examples of the cyclic group include a benzene group, a naphthalene group, a triphenylene group, a dibenzofuran group, a dibenzothiophene group, a carbazole group, an indolodibenzofuran group, an indolodibenzothiophene group, an indolocarbazole group, a naphthobenzofuran group, a naphthobenzothiophene group, a benzocarbazole group, a phenanthrenobenzofuran group, a phenanthrenobenzothiophene group, a naphthocarbazole group, a dinaphthofuran group, a dinaphthothiophene group, a dibenzocarbazole group, and the like.

[0107] For example, the hole transporting compound includes two or more carbazole groups.

[0108] According to another embodiment, the electron transport compound is a compound including at least one electron transport group. The electron transport group is a cyano group, a fluoro group, a π-electron deficient nitrogen-containing C 1 -C 60 Cyclic group (π electron-depleted nitrogen-containing C 1 -C 60 According to one embodiment, the electron transport compound includes a triazine group.

[0109] For example, the electron transport compound may comprise at least one electron transport group (e.g., a triazine group) and at least one π-electron-rich C 3 -C 60cyclic groups (e.g., benzene groups, naphthalene groups, triphenylene groups, dibenzofuran groups, dibenzothiophene groups, carbazole groups, indolodibenzofuran groups, indolodibenzothiophene groups, indolocarbazole groups, naphthobenzofuran groups, naphthobenzothiophene groups, benzocarbazole groups, phenanthrenobenzofuran groups, phenanthrenobenzothiophene groups, naphthocarbazole groups, dinaphthofuran groups, dinaphthothiophene groups, dibenzocarbazole groups, or any combination thereof);

[0110] According to an embodiment, the hole transporting compound is a compound represented by Formula 6: [ka] In chemical formula 6, L 61 and L 62 are, independently of each other, deuterium, C 1 -C 20 Alkyl groups, deuterated C 1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35 ), or any combination thereof, substituted or unsubstituted, π-electron-rich C 3 -C 60 is a cyclic group, e61 and e62 are each independently an integer from 1 to 6; R 61 Or R 64 are independent of each other, Hydrogen, Deuterium, C 1 -C 20 Alkyl group, or deuterated C 1 -C 20 Alkyl groups; Deuterium, C 1 -C 20 Alkyl groups, deuterated C1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35 ), or any combination thereof, substituted or unsubstituted, π-electron-rich C 3 -C 60 A cyclic group; or -Si(Q 3 )(Q 4 )(Q 5 ); and a63 and a64 are each independently an integer from 0 to 7.

[0111] Q 3 Or Q 5 , and Q 33 Or Q 35 For an explanation of each of these, please refer to the sections described herein.

[0112] According to another embodiment, the hole transporting compound is a compound represented by the following formula 6-1, 6-2, or 6-3: [ka] [ka] [ka] In chemical formulas 6-1 to 6-3, L 61 , L 62 , R 61 Or R 64 , e61, e62, a63, and a64 are described in this specification.

[0113] According to yet another embodiment, the hole transporting compound is one of the following compounds HTH1 to HTH6: [ka]

[0114] According to yet another embodiment, the electron transporting compound is a compound represented by Formula 7: [ka] In chemical formula 7, X 74 is C(R 74 ) or N, and X 75 is C(R 75 ) or N, and X 76 is C(R 76 ) or N, and X 74 Or X 76 At least one of is N; L 71 Or L 73 are independently deuterium, -F, cyano group, C 1 -C 20 Alkyl groups, deuterated C 1 -C 20 Alkyl groups, fluorinated C 1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35 ), or any combination thereof, substituted or unsubstituted, 5 -C 30 Carbocyclic group or C 1 -C 30 is a heterocyclic group, e71 to e73 are each independently an integer from 1 to 10; R 71 Or R 76 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 Alkyl groups; Deuterium, -F, cyano group, C 1 -C 20 Alkyl groups, deuterated C 1 -C 20 Alkyl groups, fluorinated C 1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35 ), or any combination thereof, substituted or unsubstituted, 5 -C 30 Carbocyclic group or C 1 -C 30 a heterocyclic group; or -Si(Q 3 )(Q 4 )(Q 5 );

[0115] Q 3 Or Q 5 , and Q 33 Or Q 35 For an explanation of each of these, please refer to the sections described herein.

[0116] According to yet another embodiment, in Formula 7, X 74 Or X 76 Each of is N.

[0117] According to yet another embodiment, in Formula 7, L 71 Or L 73 are independent of each other, Deuterium, -F, cyano group, C 1 -C 20 Alkyl groups, deuterated C 1 -C20 Alkyl groups, fluorinated C 1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35 ), or any combination thereof, substituted or unsubstituted, benzene, naphthalene, triphenylene, dibenzofuran, dibenzothiophene, carbazole, indolodibenzofuran, indolodibenzothiophene, indolocarbazole, naphthobenzofuran, naphthobenzothiophene, benzocarbazole, phenanthrenobenzofuran, phenanthrenobenzothiophene, naphthocarbazole, dinaphthofuran, dinaphthothiophene, or dibenzocarbazole.

[0118] According to yet another embodiment, in Formula 7, e71 L 71 At least one of e72 L 72 At least one of e73 L 73 At least one of, or any combination thereof, independently of each other, is deuterium, -F, a cyano group, C 1 -C 20 Alkyl groups, deuterated C 1 -C 20 Alkyl groups, fluorinated C 1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35), or any combination thereof, substituted or unsubstituted, dibenzofuran, dibenzothiophene, carbazole, indolodibenzofuran, indolodibenzothiophene, indolocarbazole, naphthobenzofuran, naphthobenzothiophene, benzocarbazole, phenanthrenobenzofuran, phenanthrenobenzothiophene, naphthocarbazole, dinaphthofuran, dinaphthothiophene, or dibenzocarbazole.

[0119] According to yet another embodiment, in Formula 7, e71 L 71 At least one of e72 L 72 At least one of e73 L 73 At least one of the above, or any combination thereof, includes a carbazole group, an indolocarbazole group, a benzocarbazole group, a naphthocarbazole group, or a dibenzocarbazole group, provided that in the above carbazole group, an indolocarbazole group, a benzocarbazole group, a naphthocarbazole group, or a dibenzocarbazole group, the nitrogen atom of the pyrrole group is bonded to a single bond or an adjacent L 71 , L 72 , and / or L 73 In chemical formula 7, X 74 Or X 76 is linked to a carbon atom of a six-membered ring comprising:

[0120] According to still another embodiment, in Formula 7, each of e71 to e73 is L 71 Or L 73 , e.g., 1, 2, 3, 4, or 5, independently of each other.

[0121] According to yet another embodiment, in Formula 7, R 71 Or R 76 are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano groups, or any combination thereof 1 -C 20 Alkyl groups; Deuterium, -F, cyano group, C 1 -C 20 Alkyl groups, deuterated C 1 -C 20 Alkyl groups, fluorinated C 1 -C 20 Alkyl group, phenyl group, deuterated phenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated phenyl group, (C 1 -C 20 alkyl)biphenyl group, -Si(Q 33 )(Q 34 )(Q 35 ), or any combination thereof, substituted or unsubstituted, of a benzene, naphthalene, triphenylene, dibenzofuran, dibenzothiophene, carbazole, indolodibenzofuran, indolodibenzothiophene, indolocarbazole, naphthobenzofuran, naphthobenzothiophene, benzocarbazole, phenanthrenobenzofuran, phenanthrenobenzothiophene, naphthocarbazole, dinaphthofuran, dinaphthothiophene, or dibenzocarbazole group; or -Si(Q 3 )(Q 4 )(Q 5 );

[0122] According to yet other embodiments, the electron transporting compound is one of the following compounds ETH1 to ETH7: [ka]

[0123] [Explanation of Chemical Formula 30]

[0124] In the first and second embodiments, the organometallic compound is an organometallic compound represented by the following Formula 30: [ka] In chemical formula 30, M 31 is a transition metal, X 11 Or X 14 are, independently of each other, C or N, X 11 and M. 31 Bond with X 12 and M. 31 Bond with X 13 and M. 31 Bonds with and X 14 and M. 31 Two of the bonds to are coordinate bonds and the remaining two are covalent bonds, Ring CY 31 Or CY 34 are independent of each other, C 5 -C 30 Carbocyclic group or C 1 -C 30 is a heterocyclic group, T 31 is a single bond, a double bond, *-N(R 35a )-*', *-B(R 35a )-*', *-P(R 35a )-*', *-C(R3 5a )(R 35b )-*', *-Si(R 35a )(R 35b )-*', *-Ge(R 35a )(R 35b )-*', *-S-*', *-Se-*', *-O-*', *-C(=O)-*', *-S(=O)-*', *-S(=O) 2 -*', *-C(R 35a )=*', *=C(R 35a )-*', *-C(R 35a )=C(R 35b )-*', *-C(=S)-*', *-C≡C-*', at least one R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 is a heterocyclic group, T 32 is a single bond, a double bond, *-N(R36a )-*', *-B(R 36a )-*', *-P(R 36a )-*', *-C(R 36a )(R 36b )-*', *-Si(R 36a )(R 36b )-*', *-Ge(R 36a )(R 36b )-*', *-S-*', *-Se-*', *-O-*', *-C(=O)-*', *-S(=O)-*', *-S(=O) 2 -*', *-C(R 36a )=*', *=C(R 36a )-*', *-C(R 36a )=C(R 36b )-*', *-C(=S)-*', *-C≡C-*', at least one R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 is a heterocyclic group, T 33 is a single bond, a double bond, *-N(R 37a )-*', *-B(R 37a )-*', *-P(R 37a )-*', *-C(R 37a )(R 37b )-*', *-Si(R 37a )(R 37b )-*', *-Ge(R 37a )(R 37b )-*', *-S-*', *-Se-*', *-O-*', *-C(=O)-*', *-S(=O)-*', *-S(=O) 2 -*', *-C(R 37a )=*', *=C(R 37a )-*', *-C(R 37a )=C(R 37b )-*', *-C(=S)-*', *-C≡C-*', at least one R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10aSubstituted or unsubstituted C 1 -C 30 is a heterocyclic group, T 34 is a single bond, a double bond, *-N(R 38a )-*', *-B(R 38a )-*', *-P(R 38a )-*', *-C(R 38a )(R 38b )-*', *-Si(R 38a )(R 38b )-*', *-Ge(R 38a )(R 38b )-*', *-S-*', *-Se-*', *-O-*', *-C(=O)-*', *-S(=O)-*', *-S(=O) 2 -*', *-C(R 38a )=*', *=C(R 38a )-*', *-C(R 38a )=C(R 38b )-*', *-C(=S)-*', *-C≡C-*', at least one R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 is a heterocyclic group, n31 to n34 are each independently an integer from 0 to 5, with the exception that three or more of n31 to n34 are each independently an integer from 1 to 5; If n31 is 0, T 31 If does not exist and n32 is 0, T 32 does not exist and n33 is 0, T 33 does not exist and n34 is 0, T 34 does not exist, If n31 is 2 or more, 2 or more T 31 are the same or different from each other, and if n32 is 2 or more, there are two or more T 32 are the same or different from each other, and when n33 is 2 or more, there are two or more T 33are the same or different from each other, and when n34 is 2 or more, there are two or more T 34 are either identical or different, R 31 Or R 34 , R 35a , R 35b , R 36a , R 36b , R 37a , R 37b , R 38a , and R 38b are independently hydrogen, deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 ,-SCIENCE FICTION 5 , a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 C 6 -C 60 Aryl groups, substituted or unsubstituted C 7 -C 60 Arylalkyl groups, substituted or unsubstituted C 6 -C 60Aryloxy groups, substituted or unsubstituted C 6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted C 2 -C 60 Heteroarylalkyl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -N(Q 1 )(Q 2 ), -Si(Q 3 )(Q 4 )(Q 5 ), -Ge(Q 3 )(Q 4 )(Q 5 ), -B(Q 6 )(Q 7 ), -P(=O)(Q 8 )(Q 9 ), or -P(Q 8 )(Q 9 ) and a31 to a34 are each independently an integer from 0 to 20; a31 R 31 Two or more of the R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, a32 R 32 Two or more of the R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, a33 R 33 Two or more of the R 10a Substituted or unsubstituted C 5 -C30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, a34 R 34 Two or more of the R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, R 31 Or R 34 , R 35a , R 35b , R 36a , R 36b , R 37a , R 37b , R 38a , and R 38b Two or more of the R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, R 10a For explanations of 31 Refer to the explanation regarding * and *' are bonding sites with 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 7 -C 60 Arylalkyl groups, substituted C 6 -C 60 Aryloxy groups, substituted C 6 -C 60 Arylthio groups, substituted C 1 -C 60 Heteroaryl Groups, Substituted C 2 -C 60 The substituents of the heteroarylalkyl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, or C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 3 -C 10 Cycloalkyl groups, C1 -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, -N(Q 11 )(Q 12 ), -Si(Q 13 )(Q 14 )(Q 15 ), -Ge(Q 13 )(Q 14 )(Q 15 ), -B(Q 16 )(Q 17 ), -P(=O)(Q 18 )(Q 19 ), -P(Q 18 )(Q 19 ), or any combination thereof, 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, or C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C2 -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, -N(Q 21 )(Q 22 ), -Si(Q 23 )(Q 24 )(Q 25 ), -Ge(Q 23 )(Q 24 )(Q 25 ), -B(Q 26 )(Q 27 ), -P(=O)(Q 28 )(Q 29 ), -P(Q 28 )(Q 29 ), or any combination thereof, substituted or unsubstituted, 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 60a heteroaryl group, a monovalent non-aromatic fused polycyclic group, or a monovalent non-aromatic fused heteropolycyclic group; -N(Q 31 )(Q 32 ), -Si(Q 33 )(Q 34 )(Q 35 ), -Ge(Q 33 )(Q 34 )(Q 35 ), -B(Q 36 )(Q 37 ), -P(=O)(Q 38 )(Q 39 ), or -P(Q 38 )(Q 39 );or any combination thereof; Q 1 Or Q 9 , Q 11 Or Q 19 , Q 21 Or Q 29 , and Q 31 Or Q 39 are, independently of each other, hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; an amidino group; a hydrazine group; a hydrazone group; a carboxylic acid group or a salt thereof; a sulfonic acid group or a salt thereof; a phosphate group or a salt thereof; deuterium, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted 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; Deuterium, C1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted C 6 -C 60 Aryl group; C 6 -C 60 Aryloxy group; C 6 -C 60 Arylthio group; C 1 -C 60 a heteroaryl group; a monovalent non-aromatic condensed polycyclic group; or a monovalent non-aromatic condensed heteropolycyclic group.

[0125] According to one embodiment, in Formula 30, M 31 is platinum (Pt), palladium (Pd), or gold (Au).

[0126] According to another embodiment, in Formula 30, M 31 is platinum (Pt) or palladium (Pd).

[0127] According to yet another embodiment, in Formula 30, X 11 and M. 31 The bond to is a coordinate bond.

[0128] According to yet another embodiment, in Formula 30, X 11 is C and X 11 and M. 31 The bond with X is a coordinate bond. 11 is C in the carbene moiety.

[0129] According to yet another embodiment, in Formula 30, the ring CY 31 Or CY 34 are, independently of each other, i) a first ring, ii) a second ring, iii) a fused ring in which two or more first rings are fused to each other, iv) a fused ring in which two or more second rings are fused to each other, or v) a fused ring in which one or more first rings and one or more second rings are fused to each other;

[0130] the first ring is a cyclopentane group, a cyclopentadiene group, a furan group, a thiophene group, a pyrrole group, a silole group, an oxazole group, an isoxazole group, an oxadiazole group, an isoxatriazole group, an isoxatriazole group, a thiazole group, an isothiazole group, a thiadiazole group, an isothiadiazole group, a thiatriazole group, an isothiazole group, a pyrazole group, an imidazole group, a triazole group, a tetrazole group, an azasilole group, a diazasilol group, or a triazasilol group;

[0131] The second ring is an adamantane group, a norbornane group, a norbornene group, a cyclohexane group, a cyclohexene group, a benzene group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, an oxazine group, a thiazine group, a dihydropyrazine group, a dihydropyridine group, or a dihydroazasilane group.

[0132] According to one embodiment, R 31 Or R 34 , R 35a , R 35b , R 36a , R 36b , R 37a , R 37b , R 38a , and R 38b are independent of each other, Hydrogen, deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , cyano group (CN), nitro group, amino group, C 1 -C 20 Alkyl group, or C 1 -C 20 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH2 , substituted with at least one of a cyano group (CN), a nitro group, an amino group, and a phenyl group; 1 -C 20 Alkyl group or C 1 -C 20 an alkoxy group; or Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , cyano group (CN), nitro group, amino group, C 1 -C 20 Alkyl group, C 1 -C 20 a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, or an anthracenyl group, which is unsubstituted or substituted with at least one of an alkoxy group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclopentenyl group, a cyclohexenyl group, a cycloheptenyl group, a phenyl group, a biphenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, or an anthracenyl group.

[0133] According to an embodiment, the organometallic compound represented by Formula 30 is an organometallic compound represented by Formula 30-1 or an organometallic compound represented by Formula 30-2 below. [ka] [ka]

[0134] In chemical formula 30-1, the carbon of the imidazole group and M 31 The bond with is a coordinate bond. That is, in formula 30-1, the imidazole group is M 31 and a carbene moiety bonded to said aryl group.

[0135] In formula 30-2, the carbon of the benzimidazole group and M 31 The bond with is a coordinate bond. That is, in formula 30-2, the benzimidazole group is M 31 and a carbene moiety bonded to said aryl group.

[0136] Therefore, among the imidazole groups, M 31 The following formula 30-1' and formula 30-1, in which the carbon bonded to M is carbene, are the same as each other. 31 It will be readily understood that the following formula 30-2' and formula 30-2, in which the carbon bonded to is represented as a carbene, are the same as each other. [ka] [ka]

[0137] In Chemical Formula 30-1 and Chemical Formula 30-2, M 31 , C.Y. 32 , C.Y. 33 , C.Y. 34 , X 12 , X 13 , X 14 , T 31 , T 32 , T 33 , n 31 , n32, n33, R 32 , R 33 , R 34 For the contents of a32, a33, and a34, please refer to the above contents. R 311 Or R 317 Each of the above R 31 Please refer to the contents of.

[0138] According to one embodiment, in Formula 30-1 and Formula 30-2, R 311 Or R 317 are independent of each other. Hydrogen, deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 ,-SCIENCE FICTION 5 , a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, or a phosphate group or a salt thereof; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 ,-SCIENCE FICTION 5 , substituted or unsubstituted with hydroxyl groups, cyano groups, nitro groups, amidino groups, hydrazine groups, hydrazone groups, or any combination thereof; 1 -C 20 Alkyl group or C 1 -C 20 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 ,-SCIENCE FICTION 5 , hydroxyl group, cyano group, nitro group, amidino group, hydrazine group, hydrazone group, C 1 -C 20 Alkyl group, C 1 -C 20 alkoxy groups, or any combination thereof, substituted or unsubstituted, 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 6 -C 60 Aryl group, C 7 -C 60 Arylalkyl groups, C 6 -C 60 Aryloxy group, C6 -C 60 Arylthio group, C 1 -C 60 Heteroaryl groups, substituted or unsubstituted C 2 -C 60 a heteroarylalkyl group, a monovalent non-aromatic fused polycyclic group, a monovalent non-aromatic fused heteropolycyclic group; or -N(Q 1 )(Q 2 ), -Si(Q 3 )(Q 4 )(Q 5 ), -Ge(Q 3 )(Q 4 )(Q 5 ), -B(Q 6 )(Q 7 ), -P(=O)(Q 8 )(Q 9 ), or -P(Q 8 )(Q 9 ).

[0139] For example, in Formula 30-1 and Formula 30-2, R 311 Or R 317 At least one of the C substituted or unsubstituted with at least one of a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a phenyl group, a cumyl group, or a combination thereof; 1 -C 20 Alkyl group, C 6 -C 60 Aryl group, or C 7 -C 60 Contains arylalkyl groups.

[0140] According to an embodiment, the organometallic compound represented by Formula 30 may be an organometallic compound represented by Formula 30-1(1) or an organometallic compound represented by Formula 30-2(1). [ka] [ka]

[0141] In Chemical Formula 30-1(1) and Chemical Formula 30-2(1), M 31 , X 12 , X 13 , X 14 , and T 31 For an explanation of each of the above, please refer to the description herein. R 311 Or R 317 The explanations for each of these are given in the present specification under the heading R 31 Refer to the explanation regarding R 321 Or R 323 The explanations for each of these are given in the present specification under the heading R 32 Please refer to the explanation of R 321 Or R 323 Two or more of R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, R 331 Or R 336 The explanations for each of these are given in the present specification under the heading R 33 Please refer to the explanation of R 331 Or R 336 Two or more of R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, R 341 Or R 344 The explanations for each of these are given in the present specification under the heading R 34 Please refer to the explanation of R 341 Or R 344Two or more of R 10a Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10a Substituted or unsubstituted C 1 -C 30 It forms a heterocyclic group.

[0142] [Explanation regarding Chemical Formula 5]

[0143] In the first and second embodiments, the organometallic compound is an organometallic compound represented by the following Chemical Formula 5: [ka] M in Chemical Formula 5 51 is a transition metal.

[0144] For example, M 51 is a first-row transition metal, a second-row transition metal, or a third-row transition metal.

[0145] As another example, M 51 is iridium (Ir), platinum (Pt), osmium (Os), titanium (Ti), zirconium (Zr), hafnium (Hf), europium (Eu), terbium (Tb), thulium (Tm), or rhodium (Rh).

[0146] According to one embodiment, M 51 is iridium (Ir), platinum (Pt), osmium (Os), or rhodium (Rh).

[0147] According to another embodiment, M 51 is iridium (Ir) or osmium (Os).

[0148] In Chemical Formula 5, L 51 is a ligand represented by the following chemical formula 5A, and L 52 is a ligand represented by the following chemical formula 5B. [ka] [ka] For the explanation of Chemical Formula 5A and Chemical Formula 5B, please refer to the descriptions in this specification.

[0149] In Chemical Formula 5, n51 is 1, 2, or 3. When n51 is 2 or more, two or more L 51 are either identical to each other or different.

[0150] In Chemical Formula 5, n52 is 0, 1, or 2. When n52 is 2 or more, two or more L 52 are either identical to each other or different.

[0151] In chemical formula 5, the sum of n51 and n52 is 2 or 3. For example, the sum of n51 and n52 is 3.

[0152] According to an embodiment, in Formula 5, i) M is iridium (Ir) and n51 + n52 is 3, or ii) M is platinum (Pt) and n51 + n52 is 2.

[0153] According to another embodiment, in Formula 5, M is iridium (Ir), and i) n51 is 1 and n52 is 2, or ii) n51 is 2 and n52 is 1.

[0154] In formula 5, L 51 and L 52 are different from each other.

[0155] In formulas 5A and 5B, Y 51 Or Y 54 are, independently of each other, C or N. For example, Y 51 and Y 53 Each of the above is N and Y 52 and Y 54 Each of these is C.

[0156] In formula 5A and formula 5B, the ring CY 51 Or CY 54 are independent of each other, C 5 -C 30 Carbocyclic group or C 1 -C 30 It is a heterocyclic group.

[0157] For example, in formulas 5A and 5B, ring CY 51 Or CY 54 include, independently from each other, i) a third ring, ii) a fourth ring, iii) a fused ring in which two or more third rings are fused to each other, iv) a fused ring in which two or more fourth rings are fused to each other, or v) a fused ring in which one or more third rings and one or more fourth rings are fused to each other; the third ring is a cyclopentane group, a cyclopentene group, a furan group, a thiophene group, a pyrrole group, a silole group, a borole group, a phosphole group, a germole group, a selenophene group, an oxazole group, an oxadiazole group, an oxatriazole group, a thiazole group, a thiadiazole group, a thiatriazole group, a pyrazole group, an imidazole group, a triazole group, a tetrazole group, or an azasilole group; The fourth ring is an adamantane group, a norbornane group, a norbornene group, a cyclohexane group, a cyclohexene group, a benzene group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, or a triazine group.

[0158] As yet another example, in Formula 5A and Formula 5B, the ring CY 1 Or CY 4are each independently a cyclopentane group, a cyclohexane group, a cyclohexene group, a benzene group, a naphthalene group, an anthracene group, a phenanthrene group, a triphenylene group, a pyrene group, a chrysene group, a 1,2,3,4-tetrahydronaphthalene group, a cyclopentadiene group, a pyrrole group, a furan group, a thiophene group, a silole group, a borole group, a phosphole group, a germole group, a selenophene group, an indene group, an indole group, a benzofuran group, a benzothiophene group, a benzosilole group, a benzoborole group, a benzophosphole group, a benzogermole group, a benzoselenophene group, a fluorene group, a carbazole group, a dibenzofuran group, a dibenzothiophene group, a dibenzosilole group, a dibenzoborole group, a dibenzophosphole group, a dibenzogermole group, a dibenzoselenophene group, a benzofluorene group, a naphthobenzofuran group, a naphthobenzothiophene group, a naphthobenzosilole group, a naphthobenzoborole group, a naphthobenzophosphole group, a naphthobenzogermole group, a naphthobenzoselenophene group, a dibenzofluorene group, a dibenzocarbazole group, a dinaphthofuran group, a dinaphthothiophene group, a dinaphthosilole group, a dinaphthoborole group, a dinaphthophosphole group, a dinaphthogermole group, a dinaphthoselenophene group, an indenophenanthrene group, an indolophenanthrene group, a phenanthrobenzofuran group, a phenanthrobenzothiophene group, a phenanthrobenzosilole group, a phenanthrobenzoborole group, a phenanthrobenzophosphole group, a phenanthrobenzogermole group, a phenanthrobenzoselenophene group, a dibenzothiophene 5-oxide group, a 9H-fluoren-9-one group, a dibenzothiophene 5,5-dioxide group, azaindene group, azaindole group, azabenzofuran group, azabenzothiophene group, azabenzosilole group, azabenzoborole group, azabenzophosphole group, azabenzogermole group, azabenzoselenophene group, azafluorene group, azacarbazole group, azadibenzofuran group, azadibenzothiophene group, azadibenzosilole group, azadibenzoborole group, azadibenzophosphole group, azadibenzogermole group, azadibenzoselenophene group, azabenzofluorene group, azabenzocarbazole group, azanaphthobenzofuran group, azanaphthobenzothiophene group, azanaphthobenzosilole group, azanaphthobenzoborole group, azanaphthobenzophosphole group, azanaphthobenzogermole group, azanaphtho azadibenzoselenophene group, azadibenzofluorene group, azadibenzocarbazole group, azadinaphthofuran group, azadinaphthothiophene group, azadinaphthosilole group, azadinaphthoborole group, azadinaphthophosphole group, azadinaphthogermole group, azadinaphthoselenophene group, azaindenophenanthrene group, azaindolophenanthrene group, azaphenanthrobenzofuran group, azaphenanthrobenzothiophene group, azaphenanthrobenzosilole group, azaphenanthrobenzoborole group, azaphenanthrobenzophosphole group, azaphenanthrobenzogermole group, azaphenanthrobenzoselenophene group, azadibenzothiophene 5-oxide group, aza 9H-fluoren-9-one group, azadibenzothiophene 5,5-Dioxide group, pyridine group, pyrimidine group, pyrazine group, pyridazine group, triazine group, quinoline group, isoquinoline group, quinoxaline group, quinazoline group, benzoquinoline group, benzoisoquinoline group, benzoquinoxaline group, benzoquinazoline group, phenanthroline group, phenanthridine group, pyrrole group, pyrazole group, imidazole group, triazole group, oxazole group, isoxazole group, thiazole group, isothiazole group, oxazine Azole group, thiadiazole group, azasilole group, azaborole group, azaphosphole group, azagermole group, azaselenophene group, benzopyrrole group, benzopyrazole group, benzimidazole group, benzoxazole group, benzisoxazole group, benzothiazole group, benzisothiazole group, benzoxadiazole group, benzothiadiazole group, pyridinopyrrole group, pyridinopyrazole group, pyridinoimidazole group, pyridinooxa a pyridinyl group, a pyridinoisoxazole group, a pyridinothiazole group, a pyridinoisothiazole group, a pyridinooxadiazole group, a pyridinothiadiazole group, a pyrimidinopyrrole group, a pyrimidinopyrazole group, a pyrimidinoimidazole group, a pyrimidinooxazole group, a pyrimidinoisoxazole group, a pyrimidinothiazole group, a pyrimidinoisothiazole group, a pyrimidinooxadiazole group, a pyrimidinothiadiazole group, a 5,6,7,8-tetrahydroisoquinoline group, a 5,6,7,8-tetrahydroquinoline, an adamantane group, a norbornane group, a benzene group condensed with a cyclohexane group, a benzene group condensed with a norbornane group, a pyridine group condensed with a cyclohexane group, or a pyridine group condensed with a norbornane group. ,

[0159] For example, in Formula 5A and Formula 5B, the ring CY 51 and KanCY 53 are different from each other.

[0160] As yet another example, in Formula 5A and Formula 5B, the ring CY 52 and KanCY 54are different from each other.

[0161] As yet another example, in Formula 5A and Formula 5B, the ring CY 51 Or CY 54 Each of them is different from the other.

[0162] In Formula 5A and Formula 5B, R 51 Or R 54 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF 5 , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 1 -C 60 Alkylthio 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 60Heteroaryl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -N(Q 51 )(Q 52 ), -Si(Q 53 )(Q 54 )(Q 55 ), -Ge(Q 53 )(Q 54 )(Q 55 ), -B(Q 56 )(Q 57 ), -P(=O)(Q 58 )(Q 59 ), or -P(Q 58 )(Q 59 ) Q 51 Or Q 59 For the relevant explanations, please refer to the respective descriptions in this specification.

[0163] According to an embodiment, in Formula 5A and Formula 5B, R 51 Or R 54 are independent of each other, Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphate group or a salt thereof, -SF 5 , C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, or C 1 -C 20 Alkylthio groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 10Alkyl groups, cyclopentyl groups, cyclohexyl groups, cycloheptyl groups, cyclooctyl groups, adamantanyl groups, norbornanyl groups, norbornenyl groups, cyclopentenyl groups, cyclohexenyl groups, cycloheptenyl groups, bicyclo[1.1.1]pentyl groups, bicyclo[2.1.1]hexyl groups, bicyclo[2.2.2]octyl groups, (C 1 -C 20 alkyl)cyclopentyl group, (C 1 -C 20 alkyl)cyclohexyl group, (C 1 -C 20 alkyl)cycloheptyl group, (C 1 -C 20 alkyl)cyclooctyl group, (C 1 -C 20 alkyl)adamantanyl group, (C 1 -C 20 alkyl)norbornanyl group, (C 1 -C 20 alkyl)norbornenyl group, (C 1 -C 20 alkyl)cyclopentenyl group, (C 1 -C 20 alkyl)cyclohexenyl group, (C 1 -C 20 alkyl)cycloheptenyl group, (C 1 -C 20 alkyl)bicyclo[1.1.1]pentyl group, (C 1 -C 20 alkyl)bicyclo[2.1.1]hexyl group, (C 1 -C 20 alkyl)bicyclo[2.2.2]octyl group, phenyl group, (C 1 -C 20 C substituted with an alkyl)phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a pyridinyl group, a pyrimidinyl group, or any combination thereof 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, or C 1 -C 20 Alkylthio groups; Deuterium, -F, -Cl, -Br, -I, -CD3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 20 Alkyl group, (phenyl)C 1 -C 10 Alkyl group, C 1 -C 20 Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group, adamantanyl group, norbornanyl group, norbornenyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, bicyclo[1.1.1]pentyl group, bicyclo[2.1.1]hexyl group, bicyclo[2.2.2]octyl group, (C 1 -C 20 alkyl)cyclopentyl group, (C 1 -C 20 alkyl)cyclohexyl group, (C 1 -C 20 alkyl)cycloheptyl group, (C 1 -C 20 alkyl)cyclooctyl group, (C 1 -C 20 alkyl)adamantanyl group, (C 1 -C 20 alkyl)norbornanyl group, (C 1 -C 20 alkyl)norbornenyl group, (C 1 -C 20 alkyl)cyclopentenyl group, (C 1 -C 20 alkyl)cyclohexenyl group, (C 1 -C 20 alkyl)cycloheptenyl group, (C 1 -C 20 alkyl)bicyclo[1.1.1]pentyl group, (C 1 -C 20 alkyl)bicyclo[2.1.1]hexyl group, (C 1 -C20 alkyl)bicyclo[2.2.2]octyl group, phenyl group, (C 1 -C 20 alkyl)phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, quinoxalinyl group, quinazolinyl group, cinnolinyl group, carbazolyl group, phenanthrolinyl group, benzimidazolyl group, benzofuranyl group, benzothiophenyl group, benzisothiazolyl group, benzo cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantanyl, norbornanyl, norbornenyl, cyclopentenyl, cyclohexenyl, cycloheptenyl, bicyclo[1.1.1]pentyl, bicyclo[2.1.1]hexyl, bicyclo[2.2.2]octyl, phenyl, (C 1 -C 20alkyl)phenyl group, biphenyl group, terphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, isoindolyl group, indolyl group, indazolyl group, purinyl group, quinolinyl group, isoquinolinyl group, benzoquinolinyl group, quinoxa a linyl group, a quinazolinyl group, a cinnolinyl group, a carbazolyl group, a phenanthrolinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, a benzisothiazolyl group, a benzoxazolyl group, a benzisoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, an imidazopyridinyl group, an imidazopyrimidinyl group, an azacarbazolyl group, an azadibenzofuranyl group, or an azadibenzothiophenyl group; or -N(Q 51 )(Q 52 ), -Ge(Q 53 )(Q 54 )(Q 55 ), -B(Q 56 )(Q 57 ), -P(=O)(Q 58 )(Q 59 ), or -P(Q 58 )(Q 59 ); and Q 51 Or Q 59 are independent of each other, -CH 3 , -CD 3 , -CD 2 H, -CDH 2 , -CH 2 CH 3 , -CH 2 CD 3 , -CH 2 CD 2 H, -CH 2 CDH 2 , -CHDCH3 , -CHDCD 2 H, -CHDCDH 2 , -CHDCD 3 , -CD 2 CD 3 , -CD 2 CD 2 H or -CD 2 CDH 2 ;or Deuterium, C 1 -C 10 an alkyl group, a phenyl group, or any combination thereof, substituted or unsubstituted, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, phenyl, biphenyl, or naphthyl;

[0164] According to another embodiment, R 51 Or R 54 are independent of each other, Hydrogen, deuterium, -F or cyano group; Deuterium, cyano group, C 3 -C 10 Cycloalkyl groups, deuterated C 3 -C 10 Cycloalkyl groups, fluorinated C 3 -C 10 Cycloalkyl groups, (C 1 -C 20 Alkyl)C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, deuterated C 1 -C 10 Heterocycloalkyl groups, fluorinated C 1 -C 10 Heterocycloalkyl groups, (C 1 -C 20 Alkyl)C 1 -C 10 Heterocycloalkyl groups, phenyl groups, deuterated phenyl groups, fluorinated phenyl groups, (C 1 -C 20alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated biphenyl group, (C 1 -C 20 alkyl)biphenyl group, dibenzofuranyl group, deuterated dibenzofuranyl group, fluorinated dibenzofuranyl group, (C 1 -C 20 alkyl)dibenzofuranyl group, dibenzothiophenyl group, deuterated dibenzothiophenyl group, fluorinated dibenzothiophenyl group, (C 1 -C 20 alkyl)dibenzothiophenyl groups, or any combination thereof, 1 -C 20 Alkyl groups; Deuterium, cyano group, C 1 -C 20 Alkyl groups, deuterated C 1 -C 20 Alkyl groups, fluorinated C 1 -C 20 Alkyl group, C 1 -C 20 Alkoxy group, deuterated C 1 -C 20 Alkoxy group, fluorinated C 1 -C 20 Alkoxy group, C 3 -C 10 Cycloalkyl groups, deuterated C 3 -C 10 Cycloalkyl groups, fluorinated C 3 -C 10 Cycloalkyl groups, (C 1 -C 20 Alkyl)C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, deuterated C 1 -C 10 Heterocycloalkyl groups, fluorinated C 1 -C 10 Heterocycloalkyl groups, (C 1 -C 20 Alkyl)C 1 -C 10 Heterocycloalkyl groups, phenyl groups, deuterated phenyl groups, fluorinated phenyl groups, (C1 -C 20 alkyl)phenyl group, biphenyl group, deuterated biphenyl group, fluorinated biphenyl group, (C 1 -C 20 alkyl)biphenyl group, dibenzofuranyl group, deuterated dibenzofuranyl group, fluorinated dibenzofuranyl group, (C 1 -C 20 alkyl)dibenzofuranyl group, dibenzothiophenyl group, deuterated dibenzothiophenyl group, fluorinated dibenzothiophenyl group, (C 1 -C 20 alkyl)dibenzothiophenyl groups, or any combination thereof, 3 -C 10 Cycloalkyl groups, C 1 -C 10 a heterocycloalkyl group, a phenyl group, or a biphenyl group; or -Si(Q 53 )(Q 54 )(Q 55 ) or -Ge(Q 53 )(Q 54 )(Q 55 );

[0165] In Chemical Formula 5A and Chemical Formula 5B, each of b51 to b54 is R 51 Or R 54 Each of b51 is independently an integer from 0 to 20. When b51 is 2 or more, two or more R 51 are the same or different from each other, and if b52 is 2 or more, then two or more R 52 are the same or different from each other, and if b53 is 2 or more, then two or more R 53 are the same or different from each other, and if b54 is 2 or more, two or more R 54 are the same as or different from each other. For example, b51 to b54 are each independently an integer from 0 to 8.

[0166] According to one embodiment, in Formula 5A, Y 52 is C and Y 52and M. 51 The bond with is a covalent bond, and b52 R 52 At least one of is a cyano group or -F.

[0167] According to another embodiment, in Formula 5A, Y 51 is N and Y 51 and M. 51 The bond with CY is a coordinate bond. 51 is an imidazole group, a triazole group, a benzimidazole group, or a triazolopyridine group, and b52 R 52 At least one of is a cyano group or -F.

[0168] According to yet another embodiment, in Formula 5A, Y 51 is C and Y 51 and M. 51 The bond to is a coordinate bond.

[0169] According to yet another embodiment, in Formula 5A, Y 51 is C and Y 51 and M. 51 The bond with CY is a coordinate bond. 51 is a benzimidazole group or an imidazopyrazine group.

[0170] [Specific examples of organometallic compounds represented by Chemical Formula 30 or Chemical Formula 5]

[0171] For example, the organometallic compound represented by Chemical Formula 30 or Chemical Formula 5 is one of the following compounds P1 to P52. [ka] [ka] [ka]

[0172] [Explanation regarding Chemical Formula 4]

[0173] In the first and second embodiments, the delayed fluorescent material is a polycyclic compound represented by the following Chemical Formula 4: [ka] In chemical formula 4, Z is B or N; Ring CY 41 Or CY 43 are independent of each other, C 5 -C 30 Carbocyclic group or C 1 -C 30 is a heterocyclic group, Y 41 is a single bond, *-N(R 44 )-*', *-B(R 44 )-*', *-P(R 44 )-*', *-C(R 44 )(R 45 )-*', *-Si(R 44 )(R 45 )-*', *-Ge(R 44 )(R 45 )-*', *-O-*', *-S-*', *-Se-*', *-C(=O)-*' or *-S(=O) 2 -*', Y 42 is a single bond, *-N(R 46 )-*', *-B(R 46 )-*', *-P(R 46 )-*', *-C(R 46 )(R 47 )-*', *-Si(R 46 )(R 47 )-*', *-Ge(R 46 )(R 47 )-*', *-O-*', *-S-*', *-Se-*', *-C(=O)-*' or *-S(=O) 2 -*', Y 43 is a single bond, *-N(R 48 )-*', *-B(R 48 )-*', *-P(R 48 )-*', *-C(R 48 )(R 49)-*', *-Si(R 48 )(R 49 )-*', *-Ge(R 48 )(R 49 )-*', *-O-*', *-S-*', *-Se-*', *-C(=O)-*', or *-S(=O) 2 -*', b41 to b43 are each independently 0 or 1; If b41 is 0, then Y 41 If b42 is 0, then Y 42 If b43 is 0, then Y 43 does not exist, R 41 Or R 49 are independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF 5 , a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 C 6 -C 60 Aryl groups, substituted or unsubstituted C 7 -C 60 Arylalkyl groups, substituted or unsubstituted C 6 -C 60 Aryloxy groups, substituted or unsubstituted C6 -C 60 Arylthio groups, substituted or unsubstituted C 1 -C 60 Heteroaryl groups, substituted or unsubstituted C 2 -C 60 Heteroarylalkyl groups, substituted or unsubstituted monovalent non-aromatic condensed polycyclic groups, substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic groups, -N(Q 1 )(Q 2 ), -Si(Q 3 )(Q 4 )(Q 5 ), -Ge(Q 3 )(Q 4 )(Q 5 ), -B(Q 6 )(Q 7 ), -P(=O)(Q 8 )(Q 9 ), or -P(Q 8 )(Q 9 ) and a41 to a43 are each independently an integer from 0 to 20; a41 R 41 Two or more of the R 10b Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10b Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, a42 R 42 Two or more of the R 10b Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10b Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, a43 R 43 Two or more of the R 10b Substituted or unsubstituted C 5 -C 30A carbocyclic group or at least one R 10b Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, R 41 Or R 49 Two or more of the R 10b Substituted or unsubstituted C 5 -C 30 A carbocyclic group or at least one R 10b Substituted or unsubstituted C 1 -C 30 Forming a heterocyclic group, R 10b For explanations of 41 Refer to the explanation regarding * and *' are the bonding sites with the adjacent atoms,

[0174] 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 7 -C 60 Arylalkyl groups, substituted C 6 -C 60 Aryloxy groups, substituted C 6 -C 60 Arylthio groups, substituted C 1 -C 60 Heteroaryl Groups, Substituted C 2-C 60 The substituents of the heteroarylalkyl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group are Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, or C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, 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, -N(Q11 )(Q 12 ), -Si(Q 13 )(Q 14 )(Q 15 ), -Ge(Q 13 )(Q 14 )(Q 15 ), -B(Q 16 )(Q 17 ), -P(=O)(Q 18 )(Q 19 ), -P(Q 18 )(Q 19 ), or any combination thereof, 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, or C 1 -C 60 Alkoxy groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, 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 60Aryloxy 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, -N(Q 21 )(Q 22 ), -Si(Q 23 )(Q 24 )(Q 25 ), -Ge(Q 23 )(Q 24 )(Q 25 ), -B(Q 26 )(Q 27 ), -P(=O)(Q 28 )(Q 29 ), -P(Q 28 )(Q 29 ), or any combination thereof, substituted or unsubstituted, 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 a heteroaryl group, a monovalent non-aromatic fused polycyclic group, or a monovalent non-aromatic fused heteropolycyclic group; -N(Q 31 )(Q 32 ), -Si(Q 33 )(Q 34 )(Q 35 ), -Ge(Q 33 )(Q 34 )(Q 35 ), -B(Q 36 )(Q 37 ), -P(=O)(Q 38 )(Q 39 ), or -P(Q 38 )(Q 39 );or any combination thereof; The above Q 1 Or Q 9 , Q 11 Or Q 19 , Q 21 Or Q 29 , and Q 31 Or Q 39 are, independently of each other, hydrogen; deuterium; -F; -Cl; -Br; -I; a hydroxyl group; a cyano group; a nitro group; an amidino group; a hydrazine group; a hydrazone group; a carboxylic acid group or a salt thereof; a sulfonic acid group or a salt thereof; a phosphate group or a salt thereof; deuterium, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted 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; Deuterium, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted C 6 -C 60 Aryl group; C 6 -C 60 Aryloxy group; C 6 -C 60 Arylthio group; C 1 -C 60 a heteroaryl group; a monovalent non-aromatic condensed polycyclic group; or a monovalent non-aromatic condensed heteropolycyclic group.

[0175] According to one embodiment, the ring CY 41 Or CY 43 are, independently of each other, i) a benzene group, or ii) two or more C 3 -C 60 It is a polycyclic group in which the cyclic groups are condensed together. 3 -C 60 The cyclic groups are fused to each other sharing a boron (B) or nitrogen (N).

[0176] According to another embodiment, at least one of b41 to b43, or at least two of b41 to b43, are each 1. As yet another example, two of b41 to b43 are 1 and the remaining one is 0.

[0177] According to yet another embodiment, R 41 Or R 49 are independent of each other, Hydrogen, deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group (CN), nitro group, amino group, C 1 -C 60 Alkyl group, or C 1 -C 60 Alkoxy groups; C substituted with at least one of deuterium, -F, -Cl, -Br, -I, a hydroxyl group, a cyano group (CN), a nitro group, an amino group, a phenyl group, a biphenyl group, a naphthyl group, a fluorenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, and a chrysenyl group. 1 -C 60 Alkyl group or C 1 -C 60 an alkoxy group; or Deuterium, -F, -Cl, -Br, -I, hydroxyl group, cyano group (CN), nitro group, amino group, C 1 -C 60 Alkyl group, C 1 -C 60Alkoxy group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, pyrimidinyl group, pyridazyl group, at least one of an isoindolyl group, an indolyl group, an indazolyl group, a purinyl group, a quinolinyl group, an isoquinolinyl group, a benzoquinolinyl group, a quinoxalinyl group, a quinazolinyl group, a cinnolinyl group, a phenanthrolinyl group, a benzimidazolyl group, a benzofuranyl group, a benzothiophenyl group, an isobenzothiazolyl group, a benzoxazolyl group, an isobenzoxazolyl group, a triazolyl group, a tetrazolyl group, an oxadiazolyl group, a triazinyl group, a dibenzofuranyl group, a dibenzothiophenyl group, and a carbazolyl group; a substituted or unsubstituted cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclopentenyl group, cyclohexenyl group, cycloheptenyl group, phenyl group, biphenyl group, naphthyl group, fluorenyl group, phenanthrenyl group, anthracenyl group, fluoranthenyl group, triphenylenyl group, pyrenyl group, chrysenyl group, pyrrolyl group, thiophenyl group, furanyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, pyridinyl group, pyrazinyl group, or pyrimidinyl group; pyridazinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolinyl, isoquinolinyl, benzoquinolinyl, quinoxalinyl, quinazolinyl, cinnolinyl, phenanthrolinyl, benzimidazolyl, benzofuranyl, benzothiophenyl, isobenzothiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, oxadiazolyl, triazinyl, dibenzofuranyl, dibenzothiophenyl, or carbazolyl.

[0178] According to still another embodiment, the polycyclic compound represented by Formula 4 is a polycyclic compound represented by one of Formulas 4-1 to 4-9 below. [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] [ka] Chemical formula 4-1 to 4-9: Z 1 Or Z 3 Each of the above refers to the description of Z in this specification, Y 41 and Y 42 refers to the description herein, Y 44 Or Y 47 are the same as Y 41 and Y 42 Please refer to the description of R 411 is R 41 Refer to the description of R 421 is R 42 Refer to the description of R 431 and R 432 are R 43 Refer to the description of R 441 is R41 Refer to the description of R 451 is R 42 Refer to the description of R 461 is R 43 Please refer to the description of a411 is an integer selected from 0 to 4; a421 is an integer selected from 0 to 3; a431 is an integer selected from 0 to 4; a441 is an integer selected from 0 to 4; a451 is an integer selected from 0 to 3; a461 is an integer selected from 0 to 3.

[0179] [Specific examples of polycyclic compounds represented by chemical formula 4]

[0180] The polycyclic compound represented by Chemical Formula 4 is selected from the following compounds D1 to D30. [ka] [ka]

[0181] [Explanation regarding Figure 1]

[0182] 1 is a schematic cross-sectional view of an organic light emitting device 10 according to an embodiment of the present invention. Hereinafter, the structure and manufacturing method of the organic light emitting device according to an embodiment of the present invention will be described with reference to FIG.

[0183] The organic light-emitting element 10 of FIG. 1 includes a first electrode 11, a second electrode 19 opposed to the first electrode 11, and an intermediate layer 10A disposed between the first electrode 11 and the second electrode 19.

[0184] The intermediate layer 10A includes an emitting layer 15, with a hole transport region 12 disposed between the first electrode 11 and the emitting layer 15, and an electron transport region 17 disposed between the emitting layer 15 and the second electrode 19.

[0185] A substrate is additionally disposed under the first electrode 11 or over the second electrode 19. As the substrate, a substrate used in general organic light-emitting devices is used, and a glass substrate or a transparent plastic substrate that has excellent mechanical strength, thermal stability, transparency, surface smoothness, ease of handling, and waterproofness is used.

[0186] [First electrode 11]

[0187] The first electrode 11 is formed by providing a first electrode material on the substrate using, for example, a deposition method or a sputtering method. The first electrode 11 is an anode. The first electrode material includes a material having a high work function so that holes can be easily injected.

[0188] The first electrode 11 is a reflective electrode, a semi-transparent electrode, or a transparent electrode. To form the first electrode 11 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 ), zinc oxide (ZnO), or any combination thereof. Alternatively, to form the first electrode 11 which is a semi-transmissive electrode or a reflective electrode, the material for the first electrode includes magnesium (Mg), silver (Ag), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), or any combination thereof.

[0189] The first electrode 11 has a single layer or a multi-layer structure including two or more layers.

[0190] [Light-emitting layer 15]

[0191] The thickness of the light-emitting layer 15 is about 100 Å to about 1,000 Å, for example, about 200 Å to about 600 Å. When the thickness of the light-emitting layer satisfies the above range, excellent light-emitting characteristics are exhibited without a substantial increase in driving voltage.

[0192] According to one embodiment, light-emitting layer 15 includes a fused ring compound as described herein. Light-emitting layer 15 is according to the first or second embodiment described herein.

[0193] Light-emitting layer 15 further comprises a host as described herein, in addition to the fused ring compound, sensitizer, and emitter as described herein.

[0194] [Hole transport region 12]

[0195] In the organic light emitting element 10, a hole transport region 12 is disposed between the first electrode 11 and the light emitting layer 15.

[0196] The hole transport region 12 has a single layer structure or a multilayer structure.

[0197] For example, the hole transport region 12 has a structure of a hole injection layer, a hole transport layer, a hole injection layer / hole transport layer, a hole injection layer / first hole transport layer / second hole transport layer, a hole injection layer / first hole transport layer / second hole transport layer / electron blocking layer, a hole transport layer / intermediate layer, a hole injection layer / hole transport layer / intermediate layer, a hole transport layer / electron blocking layer, or a hole injection layer / hole transport layer / electron blocking layer.

[0198] Hole transport region 12 comprises any compound that has hole transport properties.

[0199] For example, the hole transport region 12 includes an amine-based compound.

[0200] According to an embodiment, the hole transport region 12 may include, for example, m-MTDATA, TDATA, 2-TNATA, NPB, 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 to a compound represented by the following formula 205, or any combination thereof. [ka] [ka] [ka] [ka] [ka] [ka] Chemical formulas 201 to 205: L 201 Or L 209 are, independently of each other, *-O-*', *-S-*', substituted or unsubstituted C 5 -C 60 Carbocyclic group or substituted or unsubstituted C 1 -C 60 is a heterocyclic group, xa1 to xa9 are each independently an integer from 0 to 5; R 201 Or R 206 are each independently a substituted or unsubstituted C 3 -C10 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 a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; R 201 Or R 206 The two adjacent groups are optionally linked to each other via a single bond, a dimethyl-methylene group, or a diphenyl-methylene group.

[0201] For example, L 201 Or L 209 are, independently of each other, deuterium, C 1 -C 10 Alkyl group, C 1 -C 10 Alkoxy group, phenyl group, naphthyl group, fluorenyl group, carbazolyl group, dibenzofuranyl group, dibenzothiophenyl group, triphenylenyl group, biphenyl group, terphenyl group, tetraphenyl group, -Si(Q 11 )(Q 12 )(Q 13), or any combination thereof, substituted or unsubstituted, of benzene, heptalene, indene, naphthalene, azulene, indacene, acenaphthylene, fluorene, spiro-bifluorene, benzofluorene, dibenzofluorene, phenalene, phenanthrene, anthracene, fluoranthene, triphenylene, pyrene, chrysene, naphthacene, picene, perylene, pentacene, hexacene, pentacene, rubicene, pentace ... a benzene group, a colozene group, an ovalene group, a pyrrole group, an isoindole group, an indole group, a furan group, a thiophene group, a benzofuran group, a benzothiophene group, a benzocarbazole group, a dibenzocarbazole group, a dibenzofuran group, a dibenzothiophene group, a dibenzothiophenesulfone group, a carbazole group, a dibenzosilole group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group, or a triindolobenzene group; xa1 to xa9 are each independently 0, 1, or 2; R 201 Or R 206 are each independently 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, biphenyl group, terphenyl group, C 1 -C 10Phenyl 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 ), -N(Q 31 )(Q 32 ), or any combination thereof, substituted or unsubstituted, of phenyl, biphenyl, terphenyl, pentalenyl, indenyl, naphthyl, azulenyl, heptalenyl, indacenyl, acenaphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenalenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl, picenyl, perylenyl, or the like. 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, a pyridinyl group, an indenocarbazolyl group, an indolocarbazolyl group, a benzofurocarbazolyl group, or a benzothienocarbazolyl group; The above Q 11 Or Q 13 , and Q 31 Or Q 33 are independent of each other, C1 -C 10 Alkyl group, C 1 -C 10 It is an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group.

[0202] According to one embodiment, the hole transport region 12 includes a carbazole-containing amine-based compound.

[0203] According to other embodiments, the hole transport region 12 includes a carbazole-containing amine-based compound and a non-carbazole-containing amine-based compound.

[0204] The carbazole-containing amine-based compound includes, for example, a compound represented by chemical formula 201, which contains a carbazole group and further contains at least one of a dibenzofuran group, a dibenzothiophene group, a fluorene group, a spiro-bifluorene group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, and a benzothienocarbazole group.

[0205] The carbazole-free amine-based compound includes, for example, a compound represented by chemical formula 201, which does not contain a carbazole group and contains at least one of a dibenzofuran group, a dibenzothiophene group, a fluorene group, a spiro-bifluorene group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, and a benzothienocarbazole group.

[0206] According to yet other embodiments, hole transport region 12 includes a compound represented by Formula 201, a compound represented by Formula 202, or any combination thereof.

[0207] According to one embodiment, the hole transport region 12 includes a compound represented by the following formula 201-1, 202-1, or 201-2, or any combination thereof. [ka] [ka] [ka] In chemical formulas 201-1, 202-1, and 201-2, L 201 Or L 203 , L 205 , xa1 to xa3, xa5, R 201 , and R 202 For the explanation of each of the above, please refer to the descriptions in this specification. R 211 Or R 213 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, biphenyl group, terphenyl group, C 1 -C 10 The phenyl group is substituted with an alkyl group, a phenyl group substituted with -F, a naphthyl group, a fluorenyl group, a spiro-bifluorenyl group, a dimethylfluorenyl group, a diphenylfluorenyl group, a triphenylenyl 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, or a pyridinyl group.

[0208] For example, the hole transport region 12 includes one of the following compounds, HT1 through HT39, or any combination thereof. [ka] [ka] [ka]

[0209] In addition, the hole transport region 12 of the organic light emitting device 10 further includes a p-dopant. When the hole transport region 12 further includes a p-dopant, the hole transport region 12 has a structure including a matrix (e.g., at least one of the compounds represented by chemical formulas 201 to 205) and the p-dopant contained in the matrix. The p-dopant is doped into the hole transport region 12 uniformly or non-uniformly.

[0210] According to one embodiment, the LUMO energy level of the p-dopant is less than or equal to -3.5 eV.

[0211] The p-dopant includes a quinone derivative, a metal oxide, a cyano group-containing compound, or any combination thereof.

[0212] For example, the p-dopant is quinone derivatives such as tetracyanoquinodimethane (TCNQ), 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ), F6-TCNNQ; Metal oxides such as tungsten oxide and molybdenum oxide; 1,4,5,8,9,12-Hexaazatriphenylene-hexacarbonitrile (HAT-CN); A compound represented by the following formula 221: any combination thereof; [ka] [ka] In chemical formula 221, R 221 Or 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 10Cycloalkenyl 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 R is a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, or a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group. 221 Or R 223 At least one of the substituents is a cyano group; -F; -Cl; -Br; -I; C substituted with -F 1 -C 20 Alkyl group; C substituted with -Cl 1 -C 20 Alkyl group; C substituted with -Br 1 -C 20 Alkyl group; C substituted with -I 1 -C 20 alkyl groups, or any combination thereof;

[0213] Compounds represented by Chemical Formula 221 include, for example, the following compound HT-D2. [ka]

[0214] The thickness of the hole transport region 12 is about 100 Å to about 10,000 Å, for example, about 400 Å to about 2,000 Å, and the thickness of the light emitting layer 15 is about 100 Å to about 3,000 Å, for example, about 300 Å to about 1,000 Å. When the thicknesses of the hole transport region 12 and the light emitting layer 15 satisfy the above-mentioned ranges, satisfactory hole transport properties and / or light emitting properties can be obtained without a substantial increase in driving voltage.

[0215] The hole transport region 12 further includes a buffer layer.

[0216] The buffer layer compensates for the optical resonance distance due to the wavelength of light emitted from the light emitting layer, thereby increasing efficiency.

[0217] The hole transport region 12 further comprises an electron blocking layer, which comprises known materials such as mCP or DBFPO. [ka]

[0218] [Electron transport area 17]

[0219] In the organic light emitting element 10 , an electron transport region 17 is disposed between the light emitting layer 15 and the second electrode 19 .

[0220] The electron transport region 17 may have a single layer structure or a multilayer structure.

[0221] For example, the electron transport region 17 has a structure of an electron transport layer, an electron transport layer / electron injection layer, a buffer layer / electron transport layer, a hole blocking layer / electron transport layer, a buffer layer / electron transport layer / electron injection layer, or a hole blocking layer / electron transport layer / electron injection layer. The electron transport region 17 further includes an electron control layer.

[0222] Electron transport region 17 comprises a known electron transport material.

[0223] The electron transport region 17 (e.g., in the electron transport region, a buffer layer, a hole blocking layer, an electron adjustment layer, or an electron transport layer) is made of a π-electron deficient nitrogen-containing C 1 -C 60 The present invention includes non-metal-containing compounds that contain at least one cyclic group. 1 -C 60 For the explanation of cyclic groups, see the description given in this specification.

[0224] For example, the electron transport region 17 includes a compound represented by the following chemical formula 601. [ka] In chemical formula 601, Ar 601 and L 601are, independently of each other, at least one R 601a Substituted or unsubstituted C 5 -C 60 A carbocyclic group or at least one R 601a Substituted or unsubstituted C 1 -C 60 is a heterocyclic group, xe11 is 1, 2, or 3, xe1 is an integer from 0 to 5, R 601a and R 601 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 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 ), or -P(=O)(Q 601 )(Q 602 ) and Q 601 Or Q 603 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group; xe21 is an integer from 1 to 5.

[0225] According to one embodiment, xe11 Ar 601 , and xe21 R 601 At least one of the above is a π-electron deficient nitrogen-containing C 1 -C 60 Contains cyclic groups.

[0226] According to one embodiment, in formula 601, the ring Ar 601 and L 601 are each independently 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, biphenyl group, terphenyl group, naphthyl group, -Si(Q 31 )(Q 32 )(Q 33 ), -S(=O) 2 (Q 31 ), -P(=O)(Q 31 )(Q 32), or any combination thereof, substituted or unsubstituted with 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, phenylene, phenylene, pyridine, phenylene, phenylene, pyridine, phenylene, phenylene, phenylene, phenylene, phenylene, phenylene, a pyrazine group, a pyrimidine group, a pyridazine group, an indazole group, a purine group, a quinoline group, an isoquinoline group, a benzoquinoline group, a phthalazine group, a naphthyridine group, a quinoxaline group, a quinazoline group, a cinnoline group, a phenanthridine group, an acridine group, a phenanthroline group, a phenazine group, a benzimidazole group, an isobenzothiazole group, a benzoxazole group, an isobenzoxazole group, a triazole group, a tetrazole group, an oxadiazole group, a triazine group, a thiadiazole group, an imidazopyridine group, an imidazopyrimidine group, or an azacarbazole group; Q 31 Or Q 33 are independent of each other, C 1 -C 10 Alkyl group, C 1 -C 10 It is an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group.

[0227] In formula 601, if xe11 is 2 or more, then 2 or more Ar 601 are linked to each other via a single bond.

[0228] According to another embodiment, the compound represented by formula 601 is Ar 601 is an anthracene group.

[0229] According to yet another embodiment, the compound represented by formula 601 is represented by the following formula 601-1: [ka] 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 Or X 616 At least one of is N; L 611 Or L 613 are independent of each other, L 601 Refer to the explanation regarding For xe611 to xe613, refer to the explanation for xe1, independently of each other. R 611 Or R 613 are, independently of each other, R 601 Refer to the explanation regarding R 614 Or 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 an alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, or a naphthyl group.

[0230] According to another embodiment, in formula 601 and formula 601-1, xe1 and xe611 to xe613 are 0, 1, or 2, independently of each other.

[0231] According to still another embodiment, in Formula 601 and Formula 601-1, R 601 , and R 611 Or R 613 are each independently 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 20Alkoxy group, phenyl group, biphenyl group, terphenyl 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 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 iso phenyl, biphenyl, terphenyl, naphthyl, fluorenyl, spiro-bifluorenyl, benzofluorenyl, dibenzofluorenyl, phenanthrenyl, anthracenyl, fluoranthenyl, triphenylenyl, pyrenyl, chrysenyl, perylenyl, pentaphenyl, heptyl, ...thiazolyl, benzoxazolyl, isobenzoxazolyl, triazolyl, tetrazolyl, imidazopyridinyl, imidazopyrimidinyl, azacarbazolyl, or any combination thereof, substituted or unsubstituted; xacenyl 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, 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,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, or an azacarbazolyl group; or -S(=O) 2 (Q 601 ) or -P(=O)(Q 601 )(Q 602 ); and Q 601 and Q 602 For the relevant explanation, please refer to the description in this specification.

[0232] Electron transport region 17 includes one of the following compounds ET1 through ET36, or any combination thereof. [ka] [ka] [ka]

[0233] Alternatively, the electron transport region 17 includes 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,7-diphenyl-1,10-phenanthroline (Bphen), Alq, BAlq, 3-(biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole (TAZ), NTAZ, dibenzo[b,d]furan-2,8-diylbis(diphenylphosphine oxide (DBFPO), or any combination thereof. For example, when the electron transport region 17 includes a hole blocking layer, the hole blocking layer includes BCP or Bphen. [ka]

[0234] The thickness of the buffer layer, hole blocking layer, or electron modulating layer is, independently of one another, about 20 Å to about 1,000 Å, for example, about 30 Å to about 300 Å. When the thickness of the buffer layer, hole blocking layer, or electron modulating layer satisfies the above range, excellent hole blocking properties or electron modulating properties can be obtained without a substantial increase in driving voltage.

[0235] The thickness of the electron transport layer is about 100 Å to about 1,000 Å, for example, about 150 Å to about 500 Å. When the thickness of the electron transport layer satisfies the above range, satisfactory electron transport properties can be obtained without a substantial increase in driving voltage.

[0236] Electron transport region 17 (eg, an electron transport layer in an electron transport region) may further include a metal-containing material in addition to the materials described above.

[0237] The metal-containing material includes an alkali metal complex, an alkaline earth metal complex, or any combination thereof. The metal ion of the alkali metal complex includes Li ion, Na ion, K ion, Rb ion, Cs ion, or any combination thereof, and the metal ion of the alkaline earth metal complex includes Be ion, Mg ion, Ca ion, Sr ion, Ba ion, or any combination thereof. The ligands coordinated to the metal ion of the alkali metal complex and the alkaline earth metal complex include, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0238] For example, the metal-containing material includes a Li complex. The Li complex includes, for example, the following compound ET-D1 (Liq) or the following compound ET-D2. [ka]

[0239] The electron transport region 17 includes an electron injection layer that facilitates electron injection from the second electrode 19. The electron injection layer is in direct contact with the second electrode 19.

[0240] The electron injection layer has i) a single layer structure consisting of a single layer containing a single substance, ii) a single layer structure consisting of a single layer containing a plurality of mutually different substances, or iii) a multilayer structure consisting of a plurality of layers containing a plurality of mutually different substances.

[0241] The electron injection layer comprises 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.

[0242] The alkali metal may include Li, Na, K, Rb, Cs, or any combination thereof. According to one embodiment, the alkali metal is Li, Na, or Cs. According to another embodiment, the alkali metal is Li or Cs.

[0243] The alkaline earth metals include Mg, Ca, Sr, Ba, or any combination thereof.

[0244] The rare earth metals include Sc, Y, Ce, Tb, Yb, Gd, or any combination thereof.

[0245] Alkali metal compounds, alkaline earth metal compounds, and rare earth metal compounds include oxides and halides (e.g., fluorides, chlorides, bromides, iodides, etc.) of alkali metals, alkaline earth metals, and rare earth metals, or any combination thereof.

[0246] The alkali metal compound is Li 2 O, Cs 2 O, K 2 O, one of the alkali metal oxides such as LiF, NaF, CsF, KF, LiI, NaI, CsI, KI, or any combination thereof. According to one embodiment, the alkali metal compound includes LiF, Li 2 O, NaF, LiI, NaI, CsI, KI, or any combination thereof.

[0247] The alkaline earth metal compound is BaO, SrO, CaO, Ba x Sr 1-x O(0 < x < 1), Ba x Ca 1-x O(0 < x < 1), one of the alkaline earth metal compounds such as, or any combination thereof. According to one embodiment, the alkaline earth metal compound includes BaO, SrO, CaO, or any combination thereof.

[0248] The rare earth metal compound is YbF 3 , ScF 3 , ScO 3 , Y 2 O 3 , Ce 2 O 3 , GdF 3 , TbF 3 , or any combination thereof. According to one embodiment, the rare earth metal compound is YbF 3 , ScF 3 , TbF 3 , YbI 3 , ScI 3 , TbI 3 , or any combination thereof.

[0249] The alkali metal complexes, alkaline earth metal complexes, and rare earth metal complexes include ions of alkali metals, alkaline earth metals, and rare earth metals as described above, and the ligands coordinated to the metal ions of the alkali metal complexes, alkaline earth metal complexes, and rare earth metal complexes include, independently of each other, hydroxyquinoline, hydroxyisoquinoline, hydroxybenzoquinoline, hydroxyacridine, hydroxyphenanthridine, hydroxyphenyloxazole, hydroxyphenylthiazole, hydroxydiphenyloxadiazole, hydroxydiphenylthiadiazole, hydroxyphenylpyridine, hydroxyphenylbenzimidazole, hydroxyphenylbenzothiazole, bipyridine, phenanthroline, cyclopentadiene, or any combination thereof.

[0250] 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 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 is uniformly or non-uniformly dispersed in a matrix composed of the organic substance.

[0251] The thickness of the electron injection layer is about 1 Å to about 100 Å, or about 3 Å to about 90 Å. When the thickness of the electron injection layer satisfies the above-mentioned range, a satisfactory electron injection characteristic can be obtained without a substantial increase in the driving voltage.

[0252] [Second electrode 19]

[0253] A second electrode 19 is disposed on the intermediate layer 10A as described above. The second electrode 19 is a cathode, which is an electron injecting electrode. In this case, the material for the second electrode 19 may be a metal, an alloy, a conductive compound, or a combination thereof, each of which has a low work function.

[0254] The second electrode 19 includes lithium (Li), silver (Ag), magnesium (Mg), aluminum (Al), aluminum-lithium (Al-Li), calcium (Ca), magnesium-indium (Mg-In), magnesium-silver (Mg-Ag), ITO, IZO, or any combination thereof. The second electrode 19 is a transmissive electrode, a semi-transmissive electrode, or a reflective electrode.

[0255] The second electrode 19 has a single-layer structure that is a single layer, or a multi-layer structure that includes multiple layers.

[0256] [Terminology explanation]

[0257] In this specification, C 1 -C 60 Alkyl group means a linear or branched, saturated aliphatic hydrocarbon monovalent group having 1 to 60 carbon atoms, C 1 -C 60 The alkylene group is C 1 -C 60 It means a divalent group having the same structure as an alkyl group.

[0258] In this specification, C 1 -C 60 Alkyl group, C 1 -C 20 Alkyl group and / or C 1 -C 10Examples of alkyl groups include methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, n-hexyl, isohexyl, sec-hexyl, tert-hexyl, n-heptyl, isoheptyl, sec-heptyl, tert-heptyl, n-octyl, isooctyl, sec-octyl, tert-octyl, n-nonyl, isononyl, sec-nonyl, tert-nonyl, n-decyl, isodecyl, sec-decyl, tert-decyl, or any combination thereof. and the like, substituted or unsubstituted, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, n-hexyl, isohexyl, sec-hexyl, tert-hexyl, n-heptyl, isoheptyl, sec-heptyl, tert-heptyl, n-octyl, isooctyl, sec-octyl, tert-octyl, n-nonyl, isononyl, sec-nonyl, tert-nonyl, n-decyl, isodecyl, sec-decyl, or tert-decyl.

[0259] In this specification, C 1 -C 60 The alkoxy group is -OA. 101 (Here, A 101 is C 1 -C 60 Specific examples of the aryl group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, or a pentoxy group.

[0260] In this specification, C 2 -C 60 The alkenyl group is C 2 -C 60It has a structure containing one or more carbon-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 C 2 -C 60 It means a divalent group having the same structure as an alkenyl group.

[0261] In this specification, C 2 -C 60 The alkynyl group is C 2 -C 60 It has a structure containing one or more carbon-carbon triple bonds in the middle or at the end of the alkyl group, and specific examples thereof include an ethynyl group and a propynyl group. 2 -C 60 The alkynylene group is C 2 -C 60 It means a divalent group having the same structure as an alkynyl group.

[0262] In this specification, C 3 -C 10 Cycloalkyl means a monovalent saturated hydrocarbon cyclic group having 3 to 10 carbon atoms, C 3 -C 10 The cycloalkylene group is C 3 -C 10 It means a divalent group having the same structure as a cycloalkyl group.

[0263] In this specification, C 3 -C 10 Examples of cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, adamantanyl, norbornanyl, (bicyclo[2.2.1]heptyl), bicyclo[1.1.1]pentyl, bicyclo[2.1.1]hexyl, bicyclo[2.2.2]octyl, and the like.

[0264] In this specification, C 1 -C 10The heterocycloalkyl group means a monovalent monocyclic group having 1 to 10 carbon atoms and containing at least one heteroatom selected from N, O, P, Si, S, Se, Ge, and B as a ring-forming atom, and C 1 -C 10 The heterocycloalkylene group is 1 -C 10 It means a divalent group having the same structure as a heterocycloalkyl group.

[0265] In this specification, C 1 -C 10 Examples of heterocycloalkyl groups include silolanyl, silinanyl, tetrahydrofuranyl, tetrahydro-2H-pyranyl, tetrahydrothiophenyl, and the like.

[0266] In this specification, C 3 -C 10 The cycloalkenyl group is a monovalent cyclic group having 3 to 10 carbon atoms, and has at least one carbon-carbon double bond in the ring, but does not have aromaticity. Specific examples thereof include a cyclopentenyl group, a cyclohexenyl group, and a cycloheptenyl group. 3 -C 10 The cycloalkenylene group is C 3 -C 10 It means a divalent group having the same structure as a cycloalkenyl group.

[0267] In this specification, C 1 -C 10 The heterocycloalkenyl group is a monovalent monocyclic group having 1 to 10 carbon atoms and containing at least one heteroatom selected from N, O, P, Si, S, Se, Ge, and B as a ring-forming atom, and has at least one double bond in the ring. 1 -C 10 Specific examples of heterocycloalkenyl groups include 2,3-dihydrofuranyl groups, 2,3-dihydrothiophenyl groups, and the like. 1 -C 10 The heterocycloalkenylene group is C1 -C 10 It means a divalent group having the same structure as a heterocycloalkenyl group.

[0268] In this specification, C 6 -C 60 Aryl means a monovalent radical having a carbocyclic aromatic system having 6 to 60 carbon atoms, C 6 -C 60 An arylene group means a divalent group having a carbocyclic aromatic system having 6 to 60 carbon atoms. 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 -C 60 When an arylene group contains more than one ring, the two or more rings are fused together.

[0269] In this specification, C 1 -C 60 The heteroaryl group means a monovalent group having a heterocyclic aromatic system having 1 to 60 carbon atoms and containing at least one heteroatom selected from N, O, P, Si, S, Se, Ge, and B as a ring-forming atom, and C 1 -C 60 The heteroarylene group refers to a divalent group having a heterocyclic aromatic system having 1 to 60 carbon atoms and containing at least one heteroatom selected from N, O, P, Si, S, Se, Ge, and B as a ring-forming atom. 1 -C 60 Specific examples of heteroaryl groups include pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, and isoquinolinyl groups. 1 -C 60 Heteroaryl groups and C 1 -C 60 When a heteroarylene group contains more than one ring, the two or more rings are fused together.

[0270] In this specification, C 6 -C60 The aryloxy group is -OA. 102 (Here, A 102 is C 6 -C 60 aryl group), C 6 -C 60 The arylthio group is -SA 103 (Here, A 103 is C 6 -C 60 aryl group).

[0271] In this specification, the monovalent non-aromatic condensed polycyclic group refers to a monovalent group in which two or more rings are condensed with each other, the ring atoms are only carbon (for example, the number of carbon atoms is 8 to 60), and the whole molecule has non-aromaticity. Specific examples of non-aromatic condensed polycyclic groups include a fluorenyl group. In this specification, the divalent non-aromatic condensed polycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic condensed polycyclic group.

[0272] In the present specification, the monovalent non-aromatic hetero-condensed polycyclic group refers to a monovalent group in which two or more rings are condensed with each other, and the ring-forming atoms include, in addition to carbon (e.g., the number of carbon atoms is 1 to 60), a heteroatom selected from N, O, P, Si, S, Se, Ge, and B, and the entire molecule has non-aromaticity. The monovalent non-aromatic hetero-condensed polycyclic group includes a carbazolyl group, etc. In the present specification, the divalent non-aromatic hetero-condensed polycyclic group refers to a divalent group having the same structure as the monovalent non-aromatic hetero-condensed polycyclic group.

[0273] In the present specification, "π-electron deficient nitrogen-containing C 1 -C 60 A "cyclic group" is a ring-constituting moiety and is a cyclic group having 1 to 60 carbon atoms containing at least one *-N=*' (the above-mentioned * and *' are each a bonding site to an adjacent atom), and is, for example, a) a first ring, b) a fused ring in which two or more first rings are fused to each other, or c) a fused ring in which one or more first rings and one or more second rings are fused to each other.

[0274] In this specification, "π-electron excess C 3 -C 60 Cyclic group (π electron-rich C 3 -C 60 The term "cyclic group" refers to a ring-constituting moiety, which is a cyclic group having 3 to 60 carbon atoms and does not contain *-N=*' (wherein the above-mentioned * and *' are each a bonding site to an adjacent atom), and is, for example, a) a second ring, or b) a fused ring in which two or more second rings are fused to each other.

[0275] In this specification, "C 5 -C 60 The "cyclic group" is a monocyclic or polycyclic group having 5 to 60 carbon atoms, for example, a) a third ring, or b) a fused ring in which two or more third rings are fused to each other.

[0276] In this specification, "C 1 -C 60 The term "heterocyclic group" refers to a monocyclic or polycyclic group having 1 to 60 carbon atoms and containing at least one heteroatom, such as a) a fourth ring, b) a fused ring in which two or more fourth rings are fused to each other, or c) a fused ring in which one or more third rings and one or more fourth rings are fused to each other.

[0277] In this specification, the "first ring" is an imidazole group, a pyrazole group, a thiazole group, an isothiazole group, an oxazole group, an isoxazole group, a pyridine group, a pyrazine group, a pyridazine group, a pyrimidine group, a triazole group, a tetrazole group, an oxadiazole group, a triazine group, or a thiadiazole group.

[0278] As used herein, a "second ring" is a benzene group, a cyclopentadiene group, a pyrrole group, a furan group, a thiophene group, or a silole group.

[0279] As used herein, a "third ring" is a cyclopentane group, a cyclopentadiene group, an indene group, an adamantane group, a norbornene group, a bicyclo[1.1.1]pentane group, a bicyclo[2.1.1]hexane group, a bicyclo[2.2.1]heptane group (norbornane group), a bicyclo[2.2.2]octane group, a cyclohexane group, a cyclohexene group, or a benzene group.

[0280] In this specification, the "fourth ring" is a furan group, a thiophene group, a pyrrole group, a silole group, an oxazole group, an isoxazole group, an oxadiazole group, an isoxadiazole group, an oxatriazole group, an isoxatriazole group, a thiazole group, an isothiazole group, a thiadiazole group, an isothiadiazole group, a thiatriazole group, an isothiazole group, a pyrazole group, an imidazole group, a triazole group, a tetrazole group, an azasilole group, a diazasiole group, a triazasiole group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, or a triazine group.

[0281] For example, π-electron deficient nitrogen-containing C 1 -C 60 Examples of the cyclic group include an imidazole group, a pyrazole group, a thiazole group, an isothiazole group, an oxazole group, an isoxazole group, a pyridine group, a pyrazine group, a pyridazine group, a pyrimidine group, an indazole group, a purine group, a quinoline group, an isoquinoline group, a benzoquinoline group, a benzoisoquinoline group, a phthalazine group, a naphthyridine group, a quinoxaline group, a benzoquinoxaline group, a quinazoline group, a cinnoline group, a phenanthridine group, an acridine group, a phenanthidine group, a phenyl ... anthroline group, phenazine group, benzimidazole group, isobenzothiazole group, benzoxazole group, isobenzoxazole group, triazole group, tetrazole group, oxadiazole group, triazine group, thiadiazole group, imidazopyridine group, imidazopyrimidine group, azacarbazole group, azadibenzofuran group, azadibenzothiophene group, azadibenzosilole group, acridine group, or pyridopyrazine group.

[0282] For example, π-electron excess C 3 -C60 The cyclic group may be a benzene group, a heptalene group, an indene group, a naphthalene group, an azulene group, an indacene group, an acenaphthylene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, a phenalene group, a phenanthrene group, an anthracene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, a naphthacene group, a picene group, a perylene group, a pentacene group, a hexacene group, a pentaphene group, a rubicene group, a coronene group, an ovalene group, a pyrrole group, a furan group, a thiophene group, an isoindole group, an indole group, an indene group, a benzofuran group, a benzothiophene group, a benzosilole group, a naphthopyrrole ... In one embodiment, the aryl group is an indolofuran group, a naphthothiophene group, a naphthosilole group, a benzocarbazole group, a dibenzocarbazole group, a dibenzofuran group, a dibenzothiophene group, a carbazole group, a dibenzosilole group, an indenocarbazole group, an indolocarbazole group, a benzofurocarbazole group, a benzothienocarbazole group, a benzosilololocarbazole group, a triindolobenzene group, a pyrrololophenanthrene group, a furanophenanthrene group, a thienophenanthrene group, a benzonaphthofuran group, a benzonaphthothiophene group, an (indolo)phenanthrene group, a (benzofurano)phenanthrene group, or a (benzothieno)phenanthrene group.

[0283] For example, C 5 -C 60 The carbocyclic group is a cyclopentane group, a cyclohexane group, a cyclohexene group, a benzene group, a naphthalene group, an anthracene group, a phenanthrene group, a triphenylene group, a pyrene group, a chrysene group, a 1,2,3,4-tetrahydronaphthalene group, a cyclopentadiene group, an indene group, a fluorene group, a 5,6,7,8-tetrahydroisoquinoline group, a 5,6,7,8-tetrahydroquinoline group, an adamantane group, a norbornane group, or a norbornene group.

[0284] For example, C 1 -C 60Examples of the heterocyclic group include a thiophene group, a furan group, a pyrrole group, a cyclopentadiene group, a silole group, a borole group, a phosphole group, a selenophene group, a germole group, a benzothiophene group, a benzofuran group, an indole group, an indene group, a benzosilole group, a benzoborole group, a benzophosphole group, a benzoselenophene group, a benzogermole group, a dibenzothiophene group, a dibenzofuran group, a carbazole group, a dibenzosilole group, a dibenzoborole group, a dibenzophosphole group, a dibenzoselenophene group, a dibenzogermole group, a dibenzothiophene 5-oxide group, a 9H-fluoren-9-one group, a dibenzothiophene 5,5-dioxide group, an azabenzothiophene group, an azabenzofuran group, an azaindole group, an azaindene group, an azabenzosilole group, an azabenzoborole group, an azabenzophosphole group, an azabenzoselenophene group, an azabenzogermole group, an aza The compound is a dibenzothiophene group, an azadibenzofuran group, an azacarbazole group, an azafluorene group, an azadibenzosilole group, an azadibenzoborole group, an azadibenzophosphole group, an azadibenzoselenophene group, an azadibenzogermole group, an azadibenzothiophene 5-oxide group, an aza-9H-fluoren-9-one group, an azadibenzothiophene 5,5-dioxide group, a pyridine group, a pyrimidine group, a pyrazine group, a pyridazine group, a triazine group, a quinoline group, an isoquinoline group, a quinoxaline group, a quinazoline group, a phenanthroline group, a pyrazole group, an imidazole group, a triazole group, an oxazole group, an isoxazole group, a thiazole group, an isothiazole group, an oxadiazole group, a thiadiazole group, a benzopyrazole group, a benzimidazole group, a benzoxazole group, a benzothiazole group, a benzoxadiazole group, or a benzothiadiazole group.

[0285] In the present specification, the π-electron deficient nitrogen-containing C 1 -C 60 cyclic group, π electron excess C 3 -C 60 cyclic group, C 5 -C 60 Cyclic groups, and C 1 -C 60Each of the heterocyclic groups is part of a fused ring, depending on the chemical structure, and may be monovalent, divalent, trivalent, tetravalent, pentavalent, or hexavalent.

[0286] As used herein, the above-mentioned substituted π-electron deficient nitrogen-containing C 1 -C 60 Cyclic groups, substituted π-electron-rich C 3 -C 60 Cyclic groups, substituted C 5 -C 60 Cyclic groups, substituted C 1 -C 60 Heterocyclic groups, substituted C 1 -C 60 Alkylene Groups, Substituted C 2 -C 60 Alkenylene Groups, Substituted C 2 -C 60 Alkynylene 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 10Cycloalkenyl 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 heteroaryl group, the substituted monovalent non-aromatic fused polycyclic group, and the substituents of the substituted monovalent non-aromatic fused polycyclic heterocyclic group are each independently Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, or C 1 -C 60 Alkylthio groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 3 -C 10 Cycloalkyl groups, C 1 -C 10 Heterocycloalkyl groups, C 3 -C 10Cycloalkenyl 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, -N(Q 11 )(Q 12 ), -Si(Q 13 )(Q 14 )(Q 15 ), -Ge(Q 13 )(Q 14 )(Q 15 ), -B(Q 16 )(Q 17 ), -P(=O)(Q 18 )(Q 19 ), -P(Q 18 )(Q 19 ), or any combination thereof, 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, or C 1 -C 60 Alkylthio groups; Deuterium, -F, -Cl, -Br, -I, -CD 3 , -CD 2 H, -CDH 2 , -CF 3 , -CF 2 H, -CFH 2 , hydroxyl group, cyano group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxylic acid group or a salt thereof, sulfonic acid group or a salt thereof, phosphoric acid group or a salt thereof, C 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60Alkynyl group, C 1 -C 60 Alkoxy group, C 1 -C 60 Alkylthio 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, -N(Q 21 )(Q 22 ), -Si(Q 23 )(Q 24 )(Q 25 ), -Ge(Q 23 )(Q 24 )(Q 25 ), -B(Q 26 )(Q 27 ), -P(=O)(Q 28 )(Q 29 ), -P(Q 28 )(Q 29 ), or any combination thereof, substituted or unsubstituted, 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 60a heteroaryl group, a monovalent non-aromatic fused polycyclic group, or a monovalent non-aromatic fused heteropolycyclic group; -N(Q 31 )(Q 32 ), -Si(Q 33 )(Q 34 )(Q 35 ), -Ge(Q 33 )(Q 34 )(Q 35 ), -B(Q 36 )(Q 37 ), -P(=O)(Q 38 )(Q 39 ), or -P(Q 38 )(Q 39 );or any combination thereof;

[0287] The above Q 1 Or Q 9 , Q 11 Or Q 19 , Q 21 Or Q 29 , and Q 31 Or Q 39 are each independently hydrogen; deuterium; -F; or deuterium, -F, cyano group, C 1 -C 60 Alkyl group, C 6 -C 60 aryl groups, or any combination thereof, substituted or unsubstituted, 1 -C 60 Alkyl group, C 2 -C 60 Alkenyl group, C 2 -C 60 Alkynyl group, C 1 -C 60 Alkoxy group, C 1 -C 60 Alkylthio 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 -C60 Aryl group, C 6 -C 60 Aryloxy group, C 6 -C 60 Arylthio group, C 1 -C 60 a heteroaryl group, a monovalent non-aromatic fused polycyclic group, or a monovalent non-aromatic fused polycyclic heterocyclic group;

[0288] Unless otherwise defined, in this specification, Q 1 Or Q 9 , Q 11 Or Q 19 , Q 21 Or Q 29 , and Q 31 Or Q 39 can be, for example, independently of each other, -CH 3 , -CD 3 , -CD 2 H, -CDH 2 , -CH 2 CH 3 , -CH 2 CD 3 , -CH 2 CD 2 H, -CH 2 CDH 2 , -CHDCH 3 , -CHDCD 2 H, -CHDCDH 2 , -CHDCD 3 , -CD 2 CD 3 , -CD 2 CD 2 H or -CD 2 CDH 2 ;or Deuterium, C 1 -C 10 an alkyl group, a phenyl group, or any combination thereof, substituted or unsubstituted, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, tert-pentyl, neopentyl, isopentyl, sec-pentyl, 3-pentyl, sec-isopentyl, phenyl, biphenyl, or naphthyl;

[0289] As used herein, "room temperature" refers to a temperature of about 25°C.

[0290] As used herein, "biphenyl, terphenyl, and tetraphenyl" refer to monovalent groups in which two, three, or four phenyl groups, respectively, are linked together through a single bond.

[0291] The compound and the organic light-emitting device according to an embodiment of the present invention will be described in more detail below with reference to a synthesis example and an embodiment, but the present invention is not limited to the synthesis example and embodiment. In the synthesis example below, in the expression "'B' was used instead of 'A'", the amount of 'B' used and the amount of 'A' used are the same on a molar equivalent basis. EXAMPLES

[0292] [Synthesis example 1 (compound 1)] [ka]

[0293] [Synthesis of compound 1-2]

[0294] N1,N3-di([1,1':3',1''-terphenyl]-2-yl)-5-(tert-butyl)benzene-1,3-diamine (15 g, 24.16 mmol), 1-bromo-3-iodobenzene (136.7 g, 483.3 mmol), CuI (0.46 g, 2.42 mmol), and K 2 CO 3 The mixture (11.69 g, 84.56 mmol) was heated at 200 °C for 24 hours under a nitrogen atmosphere, and the reaction was terminated using ammonium chloride solution. The resultant product was extracted with dichloromethane and dissolved in MgSO 4The solvent was removed by drying at 40° C. The resulting product was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:3) to obtain 12.94 g of compound 1-2 (white solid).

[0295] LCMS (Liquid chromatography-mass spectrometry) (m / z) calculated value: 930.83 g / mol, measured value: [M+] 931.720 g / mol

[0296] [Synthesis of compound 1-1]

[0297] Compound 1-2 (10.4 g, 11.17 mmol), 1,2-dichlorobenzene 100 ml, and BI 3 (6.56 g, 16.76 mmol) was heated to 150° C. under a nitrogen atmosphere, stirred for 24 hours, cooled to room temperature, and then added Na 2 CO 3 The reaction was terminated by dissolving the resulting organic layer in dichloromethane and then adding MgSO 4 After drying at 40° C. for 24 hours to remove the solvent, the mixture was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:3) to obtain 3.03 g of compound 1-1 (solid).

[0298] LCMS (m / z) calculated value: 938.61 g / mol, found value: [M+] 939.159 g / mol

[0299] [Synthesis of compound 1]

[0300] Compound 1-1 (1 g, 1.07 mmol), carbazole (0.35 g, 2.09 mmol), Pd 2 (dba) 3(0.001g, 0.001mmol), S-Phos (0.008g, 0.02mmol), and NaOBu-t (0.31g, 3.21mmol) were mixed with toluene, and then heated at 110°C for 5 hours under a nitrogen atmosphere, cooled to room temperature, and the reaction was terminated with an ammonium chloride solution. The organic layer obtained from the mixture was extracted with dichloromethane and then diluted with MgSO 4 After drying at 40° C. for 24 hours to remove the solvent, the mixture was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:2) to obtain 0.49 g of compound 1 (yellow solid).

[0301] LCMS (m / z) calculated value: 1,111.21 g / mol, found value: [M+] 1,110.11 g / mol

[0302] [Synthesis example 2 (compound 121)] [ka]

[0303] [Synthesis of compound 121-2]

[0304] 5-(tert-butyl)-N1,N3-bis(5-(tert-butyl)-[1,1':3',1''-terphenyl]-2-yl)benzene-1,3-diamine (23 g, 31.37 mmol), 1-bromo-3-iodobenzene (177.53 g, 627.5 mmol), CuI (0.6 g, 3.14 mmol), and K 2 CO 3 The mixture (15.17 g, 109.79 mmol) was heated at 200 °C for 24 hours under a nitrogen atmosphere, and the reaction was terminated using ammonium chloride solution. The resultant product was extracted with dichloromethane and dissolved in MgSO 4The mixture was dried at 40° C. to remove the solvent, and the resulting product was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:3) to obtain 23.05 g of compound 121-2 (white solid).

[0305] LCMS (m / z) calculated value: 1,043.04 g / mol, found value: [M+] 1,043.3024 g / mol

[0306] [Synthesis of compound 121-1]

[0307] Compound 121-2 (10 g, 9.59 mmol), 1,2-dichlorobenzene 100 ml, and BI 3 The mixture (5.63 g, 14.38 mmol) was heated to 150° C. under a nitrogen atmosphere, stirred for 24 hours, cooled to room temperature, and then added with Na 2 CO 3 The reaction was terminated by dissolving the resulting organic layer in dichloromethane and then adding MgSO 4 After drying at 40° C. and removing the solvent, the mixture was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:3) to obtain 3.03 g of compound 121-1 (solid).

[0308] LCMS (m / z) calculated value: 1050.83 g / mol, found value: [M+] 1050.159 g / mol

[0309] [Synthesis of compound 121]

[0310] Compound 121-1 (1.7 g, 1.61 mmol), carbazole (0.33 g, 1.97 mmol), Pd 2 (dba) 3(0.014g, 0.015mmol), S-Phos (0.013g, 0.032mmol) and NaOBu-t (0.46g, 4.79mmol) were mixed with toluene, heated at 110°C for 5 hours under a nitrogen atmosphere, cooled to room temperature, and the reaction was terminated with an ammonium chloride solution. The organic layer obtained from the mixture was extracted with dichloromethane and then diluted with MgSO 4 After drying at 40° C. and removing the solvent, the mixture was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:2) to obtain 1.2 g of compound 121 (yellow solid).

[0311] LCMS (m / z) calculated value: 1,223.43 g / mol, found value: [M+] 1,223.31 g / mol

[0312] [Synthesis example 3 (compound 576)] [ka]

[0313] [Synthesis of compound 576-2]

[0314] Compound 576-2 was synthesized using the same method as that for compound 1-2 in Synthesis Example 1, except that compound 576-3 was used instead of N1,N3-di([1,1':3',1"-terphenyl]-2-yl)-5-(tert-butyl)benzene-1,3-diamine.

[0315] [Synthesis of compound 576-1]

[0316] Compound 576-1 was synthesized in the same manner as in Synthesis Example 1 for compound 1-1, except that compound 576-2 was used instead of compound 1-2.

[0317] [Synthesis of compound 576]

[0318] Instead of compound 1-1, compound 576-1 was used, and instead of carbazole, 9H-carbazole-1,2,3,4,5,6,7,8-d 8 Compound 576 (yellow solid) 1.6 g was synthesized using the same method as that for compound 1 in Synthesis Example 1, except that the following was used.

[0319] LCMS (m / z) calculated value: 1,615.022 g / mol, found value: [M+] 1,616.027 g / mol

[0320] [Synthesis example 4 (compound 516)] [ka]

[0321] [Synthesis of compound 516-2]

[0322] Compound 516-2 was synthesized using the same method as that for compound 1-2 in Synthesis Example 1, except that compound 516-3 was used instead of N1,N3-di([1,1':3',1"-terphenyl]-2-yl)-5-(tert-butyl)benzene-1,3-diamine.

[0323] [Synthesis of compound 516-1]

[0324] Compound 516-1 was synthesized in the same manner as in Synthesis Example 1 for compound 1-1, except that compound 516-2 was used instead of compound 1-2.

[0325] [Synthesis of compound 516]

[0326] Instead of compound 1-1, compound 516-1 was used, and instead of carbazole, 9H-carbazole-1,2,3,4,5,6,7,8-d 8 0.75 g of compound 516 (yellow solid) was synthesized using the same method as that for compound 1 in Synthesis Example 1, except that the following was used.

[0327] LCMS (m / z) calculated value: 1,278.77 g / mol, found value: [M+] 1,278.757 g / mol

[0328] [Comparative synthesis example 1 (compound R3)] [ka]

[0329] [Synthesis of compound R3-1]

[0330] 1-Bromo-2,3-dichlorobenzene (1.25 g, 5.53 mmol), compound R3-2 (4.996 g, 12.17 mmol), Pd 2 (dba) 3 (0.504 g, 0.55 mmol), S-Phos (0.456 g, 1.11 mmol), and NaOBu-t (1.86 g, 19.37 mmol) were mixed with 110 ml of xylene and refluxed for 30 minutes. The reaction was terminated with an ammonium chloride solution, and the resulting product was extracted with ethyl acetate and dissolved in MgSO 4 The solvent was removed by drying at 40° C. The resultant was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:3) to obtain 4.3 g of compound R3-1 (white solid).

[0331] LCMS (m / z) calculated value: 928.333 g / mol, found value: [M+] 929.336 g / mol

[0332] [Synthesis of compound R3]

[0333] Compound R3-1 (3.26 g, 3.51 mmol) was dissolved in 87 ml of t-butylbenzene, cooled to -78 ° C, t-BuLi (5.48 ml, 8.77 mmol) was added, and the temperature was raised to 60 ° C and stirred for 1 hour and 30 minutes. The resultant was cooled to 0 ° C, boron tribromide (1.76 ml, 7.01 mmol) was added, and the mixture was stirred at room temperature for 1 hour and 30 minutes. The resultant was cooled to 0 ° C, N, N-diisopropylethyl acetate (1.19 ml, 7.01 mmol) was added, and the mixture was heated at 120 ° C for 4 hours, and the reaction was terminated using sodium acetate solution (1.0 M). The organic layer obtained from the mixture was extracted using ethyl acetate, and then MgSO 4 After drying at 40° C. to remove the solvent, the mixture was purified by column chromatography using methylene chloride (MC):hexane (volume ratio 1:4) to obtain 0.6 g of compound R3 (solid).

[0334] LCMS (m / z) calculated value: 902.368 g / mol, found value: [M+] 903.353 g / mol

[0335] [Evaluation example 1]

[0336] The molecular structures of compounds 1, 121, 576, 516, and compounds R1 to R4 were optimized using the B3LYP / 6-31G(D,P) function, and DFT (density functional) calculations were performed using the Gaussian 16 program to obtain the HOMO energy level, LUMO energy level, and S 1 Energy level, T 1 Energy level, and ΔEst(S 1 Energy and T 1 The results are summarized in Table 2.

[0337] [Table 2]

[0338] [ka]

[0339] From Table 2, it is confirmed that compounds 1, 121, 576, and 516 have electrical properties suitable for a light-emitting device.

[0340] [Example 1]

[0341] A glass substrate on which an ITO electrode having a thickness of 1,500 Å was formed was cut into a size of 50 mm x 50 mm x 0.5 mm, and ultrasonically cleaned in acetone / isopropyl alcohol and pure water for 15 minutes each, and then UV (ultraviolet) ozone cleaning was performed for 30 minutes.

[0342] Next, m-MTDATA was evaporated onto the ITO electrode (anode) on the glass substrate to form a hole injection layer with a thickness of 600 Å, and α-NPD was evaporated onto the hole injection layer to form a hole transport layer with a thickness of 250 Å.

[0343] On the hole transport layer, compound 1 (emitter) and mCP (host) were co-deposited in a weight ratio of 10:90 to form a 400 Å-thick light-emitting layer.

[0344] BAlq was evaporated on the light-emitting layer to form a 50 Å-thick hole-blocking layer, Alq3 was evaporated on the hole-blocking layer to form a 300 Å-thick electron-transporting layer, LiF was evaporated on the top of the electron-transporting layer to form a 10 Å-thick electron-injecting layer, and Al was vacuum-evaporated on the electron-injecting layer to form a 1,200 Å-thick second electrode (cathode). The resulting structure was ITO / m-MTDATA(600 Å) / α-NPD(250 Å) / mCP+Compound 1(10 wt%)(400 Å) / BAlq(50 Å) / Alq 3 A light-emitting device having a (300 Å) / LiF(10 Å) / Al(1,200 Å) structure was fabricated.

[0345] [ka]

[0346] [Examples 2 to 4 and Comparative Examples R1 to R3]

[0347] A light emitting device was manufactured in the same manner as in Example 1, except that the compound shown in Table 3 was used as the emitter instead of Compound 1 when forming the light emitting layer.

[0348] [Evaluation example 2]

[0349] For each of the light-emitting devices fabricated in Examples 1 to 4 and Comparative Examples R1 to R3, the emission peak wavelength (maximum emission peak wavelength), half-width (FWHM), driving voltage, external quantum efficiency at 1,000 nit (EQE at 1,000 nit), and lifetime (LT95 at 1,000 nit) of the electroluminescence (EL) spectrum were evaluated, and the results are shown in Table 3. The emission peak wavelength and half-width of the EL spectrum were measured for each organic light-emitting device using a luminance meter (Minolta Cs-1000A). 2 The driving voltage and external quantum efficiency were evaluated using a current-voltage meter (Keithley 2400) and a luminance meter (Minolta Cs-1000A). 95 at 1,000nit) is the time (hr) it takes for the brightness to drop to 95% of the initial brightness of 100%, and is expressed as a relative value (%).

[0350] [Table 3]

[0351] [ka]

[0352] From Table 3, it can be seen that the light-emitting devices of Examples 1 to 4 emit blue light and have improved driving voltage, improved external quantum efficiency, and improved life characteristics compared to the light-emitting devices of Comparative Examples R1 to R3. [Explanation of symbols]

[0353] 11 1st electrode 12 Hole transport region 15 Light-emitting layer 17 Electron transport area 19 Second electrode

Claims

1. A fused ring compound represented by the following chemical formula 1: 【Chemistry 1】 In Formula 1, Ar ０ is a group represented by the following chemical formula 2: 【Chemistry 2】 In the formula 1 and the formula 2, Ring Y １ Or Ring Y ３ are, independently of each other, C ５ -C ６０ Carbocyclic group or C ３ -C ６０ is a heterocyclic group, W １ is a single bond, O, S, N (Ar １ ), N(T １１ ), C(T １２ ) (T １３ ), or Si(T １２ ) (T １３ ) and W ２ is a single bond, O, S, N (Ar ２ ), N(T ２１ ), C(T ２２ ) (T ２３ ), or Si(T ２２ ) (T ２３ ) and n1 and n2 are each independently 0 or 1; If n1 is 0, then *-(W １ ) ｎ１ -*' does not exist, If n2 is 0, then *-(W ２ ) ｎ２ -*' does not exist, The sum of n1 and n2 is 1 or more, Ar １ and Ar ２ Each of the groups represented by Chemical Formula 2 is R ０ teeth, Hydrogen, deuterium, -F, or a cyano group, or C substituted or unsubstituted with deuterium, -F, cyano group, or any combination thereof １ -C ６０ is an alkyl group, R １ Or R ４ are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano group, or any combination thereof １ -C ６０ an alkyl group, or Deuterium, -F, cyano group, C １ -C ６０ Alkyl group, C ６ -C ６０ aryl groups, or any combination thereof, substituted or unsubstituted C ６ -C ６０ is an aryl group, a1 is an integer from 0 to 3; a2 and a4 are each independently an integer from 0 to 4; a3 and m are each independently an integer from 0 to 5; In Chemical Formula 2, * represents a binding site with Chemical Formula 1; Z １ Or Z ３ , T １１ Or T １３ , and T ２１ Or T ２３ are each independently hydrogen, deuterium, -F, -Cl, -Br, -I, -SF ５ , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 １ -C ６０ Alkylthio group, 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 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 a heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, -N(Q １ ) (Q ２ ), -Si(Q ３ ) (Q ４ ) (Q ５ ), -Ge(Q ３ ) (Q ４ ) (Q ５ ), -B(Q ６ ) (Q ７ ), -P(=O)(Q ８ ) (Q ９ ), -P(Q ８ ) (Q ９ ), or a group represented by chemical formula 2, b1 and b2 are each independently an integer from 0 to 10; b3 is an integer from 1 to 5; The formula 1 satisfies at least one of the following <Condition 1> and <Condition 2>: <Condition 1> b1 is 1 or more, and b1 Z １ At least one of the groups contains a carbazole group; <Condition 2> b2 is 1 or more, and b2 Z ２ At least one of the groups contains a carbazole group; b 3 Zs ３ At least one of the C is unsubstituted or substituted with deuterium, -F, a cyano group, or any combination thereof. １ -C ６０ is an alkyl group, Z １ , Z ２ , Z ３ , T １１ , T １２ , T １３ , T ２１ , T ２２ , and T ２３ Two or more of the groups are optionally linked to each other and are substituted or unsubstituted C ５ -C ３０ A carbocyclic group or a substituted or unsubstituted C １ -C ３０ Forming a heterocyclic group, The substituted C ５ -C ３０ Carbocyclic groups, substituted C １ -C ３０ Heterocyclic groups, 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 １ -C ６０ Alkylthio group, 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, -CD ３ , -CD ２ H, -CDH ２ , -CF ３ , -CF ２ H, -CFH ２ , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, C １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, or C １ -C ６０ Alkylthio groups, Deuterium, -F, -Cl, -Br, -I, -CD ３ , -CD ２ H, -CDH ２ , -CF ３ , -CF ２ H, -CFH ２ , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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, -N(Q １１ ) (Q １２ ), -Si(Q １３ ) (Q １４ ) (Q １５ ), -Ge(Q １３ ) (Q １４ ) (Q １５ ), -B(Q １６ ) (Q １７ ), -P(=O)(Q １８ ) (Q １９ ), -P(Q １８ ) (Q １９ ), or any combination thereof; １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, or C １ -C ６０ Alkylthio groups, Deuterium, -F, -Cl, -Br, -I, -CD ３ , -CD ２ H, -CDH ２ , -CF ３ , -CF ２ H, -CFH ２ , a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, 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 １ -C ６０ Alkylthio 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, -N(Q ２１ ) (Q ２２ ), -Si(Q ２３ ) (Q ２４ ) (Q ２５ ), -Ge(Q ２３ ) (Q ２４ ) (Q ２５ ), -B(Q ２６ ) (Q ２７ ), -P(=O)(Q ２８ ) (Q ２９ ), -P(Q ２８ ) (Q ２９ ), or any combination thereof, substituted or unsubstituted, 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 a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group; -N(Q ３１ ) (Q ３２ ), -Si(Q ３３ ) (Q ３４ ) (Q ３５ ), -Ge(Q ３３ ) (Q ３４ ) (Q ３５ ), -B(Q ３６ ) (Q ３７ ), -P(=O)(Q ３８ ) (Q ３９ ), or -P(Q ３８ ) (Q ３９ ),or Any combination thereof, Q １ Or Q ９ , Q １１ Or Q １９ , Q ２１ Or Q ２９ , and Q ３１ Or Q ３９ are each independently hydrogen, deuterium, -F, or Deuterium, -F, cyano group, C １ -C ６０ Alkyl group, C ６ -C ６０ aryl groups, or any combination thereof, substituted or unsubstituted, １ -C ６０ Alkyl group, C ２ -C ６０ Alkenyl group, C ２ -C ６０ Alkynyl group, C １ -C ６０ Alkoxy group, C １ -C ６０ Alkylthio 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 It is a heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group.

2. Ring Y １ Or Ring Y ３ are each independently a benzene group, a naphthalene group, a phenanthrene group, a pyridine group, a pyrimidine group, a pyridazine group, a pyrazine group, a quinoline group, an isoquinoline group, a dibenzofuran group, a dibenzothiophene group, a carbazole group, a fluorene group, a dibenzosilole group, an azadibenzofuran group, an azadibenzothiophene group, an azacarbazole group, an azafluorene group, or an azadibenzosilole group.

3. n1 is 1, W １ is N(Ar １ ) or N(T １１ 2. The fused ring compound according to claim 1, wherein

4. R ０ teeth, Hydrogen, deuterium, -F, or a cyano group, or C substituted or unsubstituted with deuterium, -F, cyano group, or any combination thereof １ -C ２０ is an alkyl group, R １ Or R ４ are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano group, or any combination thereof １ -C ２０ an alkyl group, or Deuterium, -F, cyano group, C １ -C ２０ 2. The fused ring compound according to claim 1, which is a phenyl group substituted or unsubstituted with an alkyl group, a phenyl group, or any combination thereof.

5. a2 is 1; R ２ is deuterium, -F, cyano group, C １ -C ２０ 2. The fused ring compound according to claim 1, which is a phenyl group substituted or unsubstituted with an alkyl group, a phenyl group, or any combination thereof.

6. Z １ Or Z ３ , T １１ Or T １３ , and T ２１ Or T ２３ are independent of each other, Hydrogen, deuterium, -F, or a cyano group; Deuterium, -F, cyano group, C １ -C ２０ C, substituted or unsubstituted with an alkyl group, a phenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, a dibenzosilolyl group, or any combination thereof; １ -C ２０ an alkyl group, a phenyl group, a biphenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, or a dibenzosilolyl group, or -N(Q １ ) (Q ２ ) and Q １ and Q. ２ are each independently deuterium, -F, a cyano group, C １ -C ２０ C, substituted or unsubstituted with an alkyl group, a phenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, a dibenzosilolyl group, or any combination thereof; １ -C ２０ 2. The fused ring compound according to claim 1, which is an alkyl group, a phenyl group, a biphenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a carbazolyl group, a fluorenyl group, or a dibenzosilolyl group.

7. Each of b1 and b2 is 1 or more; Z １ and Z ２ 2. The fused ring compound according to claim 1, wherein at least one of the following is a group represented by the following chemical formula 3: 【Chemistry 3】 In the above Chemical Formula 3, Z １１ Or Z １８ are independent of each other, Hydrogen, deuterium, -F, or a cyano group; C substituted or unsubstituted with deuterium, -F, cyano group, or any combination thereof １ -C ２０ an alkyl group, or Deuterium, -F, cyano group, C １ -C ２０ alkyl groups, phenyl groups, or phenyl groups unsubstituted or substituted with any combination thereof; * indicates the binding site with Chemical Formula 1.

8. The fused ring compound according to claim 1, wherein the group represented by the chemical formula 2 is a group represented by one of the following chemical formulas 2-1 to 2-3. 【Chemistry 2-1】 【Chemistry 2-2】 【Chemistry 2-3】 In the above chemical formulas 2-1 to 2-3, R ０ The description of the above is the same as that of claim 1, R １１ Or R １３ The explanation for each of the above is given in claim 1. １ The explanation is the same as that given in R ２１ Or R ２４ The explanation for each of the above is given in claim 1. ２ The explanation is the same as that given in R ３１ Or R ３５ The explanation for each of the above is given in claim 1. ３ The explanation is the same as that given in * indicates the bonding site with nitrogen in Chemical Formula 1.

9. The fused ring compound according to claim 1, wherein the group represented by the chemical formula 2 is a group represented by the following chemical formula 2-1(1): 【Chemistry 2-1(1)】 In the above chemical formula 2-1(1), R ０ The description of the above is the same as that of claim 1, R １１ Or R １３ The explanation for each of the above is given in claim 1. １ The explanation is the same as that given in R ２１ , R ２３ , and R ２４ The explanation for each of the above is given in claim 1. ２ The explanation is the same as that given in R ３１ Or R ３５ The explanation for each of the above is given in claim 1. ３ The explanation is the same as that given in R ２５ Or R ２９ are independent of each other, Hydrogen, deuterium, -F, or a cyano group, or C substituted or unsubstituted with deuterium, -F, cyano group, or any combination thereof １ -C ２０ is an alkyl group, * indicates the binding site with Chemical Formula 1.

10. The fused ring compound according to claim 1, represented by the following formula 1A: 【Chemistry 1A】 In the above Formula 1A, W １ is O, S, N (Ar １ ), N(T １１ ), C(T １２ ) (T １３ ), or Si(T １２ ) (T １３ ) and Ar ０ , Ar １ , and T １１ Or T １３ The description of each of the above is the same as that of claim 1, Z １１ and Z １２ The explanation for each of the above is given in claim 1. １ The explanation is the same as that given in Z ２１ and Z ２２ The explanation for each of the above is given in claim 1. ２ The explanation is the same as that given in Z １１ , Z １２ , Z ２１ , and Z ２２ At least one of the following is a deuterium atom, -F, a cyano group, or C １ -C ２０ an N-carbazolyl group unsubstituted or substituted with alkyl groups, phenyl groups, or any combination thereof; Z ３ is a C substituted or unsubstituted with deuterium, -F, a cyano group, or any combination thereof; １ -C ２０ It is an alkyl group.

11. 2. The fused ring compound of claim 1, comprising at least one deuterium, at least one tert-butyl group, or any combination thereof.

12. A first electrode; A second electrode; an intermediate layer disposed between the first electrode and the second electrode, the intermediate layer including a light-emitting layer; A light-emitting device, wherein the intermediate layer contains one or more kinds of the fused ring compound according to claim 1 .

13. The light-emitting device according to claim 12 , wherein the fused ring compound is contained in the light-emitting layer.

14. The light emitting device according to claim 13, wherein the light emitted from the light emitting layer has a peak emission wavelength of 440 nm to 470 nm.

15. The light emitting device according to claim 13, wherein the fused ring compound contained in the light emitting layer serves as an emitter.

16. The light emitting device of claim 13 , wherein the light emitting layer further comprises a sensitizer, and the sensitizer and the fused ring compound are different from each other.

17. 17. The light-emitting device of claim 16, wherein the sensitizer is an organometallic compound, a delayed fluorescent material, a prompt fluorescent material, or any combination thereof.

18. the organometallic compound comprises a transition metal and a tetradentate ligand bound to the transition metal; the transition metal is platinum or palladium; 20. The light-emitting device of claim 17, wherein the tetradentate ligand comprises a carbene moiety bound to the transition metal.

19. The light emitting device according to claim 13, wherein the fused ring compound contained in the light emitting layer is a sensitizer.

20. An electronic device comprising the light-emitting element according to claim 12.

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