Hetero-cyclic compound and organic light emitting device using the same

1. A hetero-cyclic compound represented by the following Chemical Formula 1:

in Chemical Formula 1,

L1 and L2 are the same as or different from each other, and each independently a direct bond or a substituted or unsubstituted C 6 to C 60 arylene group,

Ar1 is selected from the group consisting of a substituted or unsubstituted pyridine group; a substituted or unsubstituted pyrimidine group; a substituted or unsubstituted triazine group; a substituted or unsubstituted quinoline group; a substituted or unsubstituted quinazoline group; a substituted or unsubstituted phenanthroline group; and a substituted or unsubstituted benzoimidazole group,

Ar2 is represented by any one of the following Chemical Formulae 3 and 4,

in Chemical Formulae 3 and 4,

Y1 to Y4 are the same as or different from each other, and each independently a substituted or unsubstituted C 6 to C 60 aromatic hydrocarbon ring; or a substituted or unsubstituted C 2 to C 60 aromatic hetero ring,

R1 to R7 are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 2 to C 60 alkenyl group; a substituted or unsubstituted C 2 to C 60 alkynyl group; a substituted or unsubstituted C 1 to C 60 alkoxy group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 2 to C 60 heterocycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; a substituted or unsubstituted C 2 to C 60 heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group which is unsubstituted or substituted with a C 1 to C 20 alkyl group, a substituted or unsubstituted C 6 to C 60 aryl group, or a C 2 to C 60 heteroaryl group, or two or more adjacent groups combine with each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring, and

R, R′, and R″ are the same as or different from each other, and are each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group.

2. The hetero-cyclic compound of claim 1 , wherein Chemical Formula 3 is represented by any one of the following structural formulae:

in the structural formulae, X1 to X6 are the same as or different from each other, and each independently NR, S, O, or CR′R″,

R8 to R14 are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 2 to C 60 alkenyl group; a substituted or unsubstituted C 2 to C 60 alkynyl group; a substituted or unsubstituted C 1 to C 60 alkoxy group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 2 to C 60 heterocycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; a substituted or unsubstituted C 2 to C 60 heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group which is unsubstituted or substituted with a C 1 to C 20 alkyl group, a substituted or unsubstituted C 6 to C 60 aryl group, or a C 2 to C 60 heteroaryl group, or two or more adjacent groups combine with each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring,

R, R′, and R″ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group, and

m is an integer of 0 to 8, and n, o, p, q, r, and s are each independently an integer of 0 to 6.

3. The hetero-cyclic compound of claim 1 , wherein Chemical Formula 4 is represented by any one of the following structural formulae:

in the structural formulae, X7 and X8 are the same as or different from each other, and each independently NR, S, O, or CR′R″,

R15 to R18 are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 2 to C 60 alkenyl group; a substituted or unsubstituted C 2 to C 60 alkynyl group; a substituted or unsubstituted C 1 to C 60 alkoxy group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 2 to C 60 heterocycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; a substituted or unsubstituted C 2 to C 60 heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group which is unsubstituted or substituted with a C 1 to C 20 alkyl group, a substituted or unsubstituted C 6 to C 60 aryl group, or a C 2 to C 60 heteroaryl group, or two or more adjacent groups combine with each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring, and

R, R′, and R″ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group, and

t is an integer of 0 to 7.

4. The hetero-cyclic compound of claim 1 , wherein Chemical Formula 1 is represented by any one of the following Chemical Formulae 5 to 10:

in Chemical Formulae 5 to 10,

the definitions of R1 to R6, L1, and Ar1 are the same as those in Chemical Formula 1,

X1, X4, and X5 are the same as or different from each other, and each independently NR, S, O, or CR′R″,

R8, R9, R12, R13, and R16 are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 2 to C 60 alkenyl group; a substituted or unsubstituted C 2 to C 60 alkynyl group; a substituted or unsubstituted C 1 to C 60 alkoxy group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 2 to C 60 heterocycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; a substituted or unsubstituted C 2 to C 60 heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group which is unsubstituted or substituted with a C 1 to C 20 alkyl group, a substituted or unsubstituted C 6 to C 60 aryl group, or a C 2 to C 60 heteroaryl group, or two or more adjacent groups combine with each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring,

R, R′, and R″ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group, and

m is an integer of 0 to 8, n, q, and r are each independently an integer of 0 to 6, and t is an integer of 0 to 7.

5. The hetero-cyclic compound of claim 1 , wherein R1 to R6 of Chemical Formula 1 are each independently hydrogen or deuterium.

6. The hetero-cyclic compound of claim 2 , wherein R8 to R14 of the structural formulae are each independently hydrogen; deuterium; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group.

7. The hetero-cyclic compound of claim 3 , wherein R5 to R18 of the structural formulae are each independently hydrogen; deuterium; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group.

8. The organic light emitting device of claim 1 , wherein Chemical Formula 1 is represented by any one of the following compounds:

9. An organic light emitting device comprising:

a positive electrode;

a negative electrode; and

one or more organic material layers provided between the positive electrode and the negative electrode,

wherein one or more layers of the organic material layers comprise the hetero-cyclic compound of claim 1 .

10. The organic light emitting device of claim 9 , wherein the organic material layer comprise at least one layer of a hole blocking layer, an electron injection layer, and an electron transport layer, and at least one layer of the hole blocking layer, the electron injection layer, and the electron transport layer comprises the hetero-cyclic compound.

11. The organic light emitting device of claim 9 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the hetero-cyclic compound.

12. The organic light emitting device of claim 9 , wherein the organic material layer comprises one or more layers of a hole injection layer, a hole transport layer, and a layer which injects and transports holes simultaneously, and one layer of the layers comprises the hetero-cyclic compound.

13. The organic light emitting device of claim 9 , wherein the organic material layer comprising the hetero-cyclic compound further comprises a compound represented by the following Chemical Formula 2:

in Chemical Formula 2,

R1′ to R4′ are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 2 to C 60 alkenyl group; a substituted or unsubstituted C 2 to C 60 alkynyl group; a substituted or unsubstituted C 1 to C 60 alkoxy group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 2 to C 60 heterocycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; a substituted or unsubstituted C 2 to C 60 heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group which is unsubstituted or substituted with a C 1 to C 20 alkyl group, a substituted or unsubstituted C 6 to C 60 aryl group, or a C 2 to C 60 heteroaryl group, or two or more adjacent groups combine with each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring,

L1′ is a direct bond or a substituted or unsubstituted C 6 to C 60 arylene group,

Ar1′ is a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group including at least one of S and O,

Ar2′ is a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group,

R, R′, and R″ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group, and

m′, p′ and q′ are each independently an integer of 0 to 4, and

n′ is an integer of 0 to 2.

14. The organic light emitting device of claim 13 , wherein Chemical Formula 2 is represented by any one of the following Chemical Formulae 11 to 22:

in Chemical Formulae 11 to 22, the definitions of L1, Ar1, Ar2, R1 to R4, m, n, p, and q are the same as those in Chemical Formula 2.

15. The organic light emitting device of claim 13 , wherein Chemical Formula 2 is represented by any one of the following compounds:

16. A composition for an organic material layer of an organic light emitting device, comprising:

both a hetero-cyclic compound represented by the following Chemical Formula 1 and a compound represented by the following Chemical Formula 2:

in Chemical Formulae 1 and 2,

L1 and L2 are the same as or different from each other, and each independently a direct bond or a substituted or unsubstituted C 6 to C 60 arylene group,

Ar1 is a substituted or unsubstituted C 2 to C 60 heteroaryl group comprising at least one N,

Ar2 is represented by any one of the following Chemical Formulae 3 and 4,

Y1 to Y4 are the same as or different from each other, and each independently a substituted or unsubstituted C 6 to C 60 aromatic hydrocarbon ring; or a substituted or unsubstituted C 2 to C 60 aromatic hetero ring,

R1 to R7 and R1′ to R4′ are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; a halogen group; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 2 to C 60 alkenyl group; a substituted or unsubstituted C 2 to C 60 alkynyl group; a substituted or unsubstituted C 1 to C 60 alkoxy group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 2 to C 60 heterocycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; a substituted or unsubstituted C 2 to C 60 heteroaryl group; —SiRR′R″; —P(═O)RR′; and an amine group which is unsubstituted or substituted with a C 1 to C 20 alkyl group, a substituted or unsubstituted C 6 to C 60 aryl group, or a C 2 to C 60 heteroaryl group, or two or more adjacent groups combine with each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring,

L1′ is a direct bond or a substituted or unsubstituted C 6 to C 60 arylene group,

Ar1′ is a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group including at least one of S and O,

Ar2′ is a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group,

R, R′, and R″ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group,

m′, p′ and q′ are each independently an integer of 0 to 4, and

n′ is an integer of 0 to 2.

17. The composition for the organic material layer of the organic light emitting device of claim 16 , wherein a weight ratio of the hetero-cyclic compound represented by Chemical Formula 1:the compound represented by Chemical Formula 2 in the composition is 1:10 to 10:1.