Carbazole-based compound and organic light-emitting device including organic layer including the carbazole-based compound

1. A carbazole-based compound represented by Formula 1 below:

wherein,

R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , and R 14 are each independently hydrogen, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 6 -C 30 aryloxy group, a substituted or unsubstituted C 6 -C 30 aryl group, or a substituted or unsubstituted C 2 -C 30 heteroaryl group, and wherein adjacent groups selected from R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , and R 14 may join together to form a saturated or unsaturated carbon ring.

2. The carbazole-based compound of claim 1 , which is a compound selected from compounds represented by Formulae 2 through 4 below:

wherein,

R 1 , R 2 , R 3 , and R 4 are each independently hydrogen, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 6 -C 30 aryloxy group, a substituted or unsubstituted C 6 -C 30 aryl group, or a substituted or unsubstituted C 2 -C 30 heteroaryl group.

3. The carbazole-based compound of claim 1 , wherein R 1 , R 2 , R 3 , and R 4 are each independently a substituted or unsubstituted C 1 -C 10 alkyl group, a substituted or unsubstituted C 1 -C 10 alkoxy group, a substituted or unsubstituted C 6 -C 12 aryl group, a substituted or unsubstituted C 6 -C 12 aryloxy group, or a substituted or unsubstituted C 3 -C 12 heteroaryl group.

4. The carbazole-based compound of claim 1 , wherein R 1 , R 2 , R 3 , and R 4 are each independently a C 1 -C 10 alkyl group, a phenyl group, a halophenyl group, a cyanophenyl group, a C 1 -C 10 alkylphenyl group, a C 1 -C 10 alkoxyphenyl group, a biphenyl group, a halobiphenyl group, a naphthyl group, a halonaphthyl group, a C 1 -C 10 alkylnaphthyl group, or a C 1 -C 10 alkoxynaphthyl group.

5. The carbazole-based compound of claim 1 , which is selected from compounds 1-27 below:

6. An organic light-emitting device comprising:

a first electrode;

a second electrode; and

one or more organic layers interposed between the first electrode and the second electrode, wherein at least one of the one or more organic layers comprises the carbazole-based compound of claim 1 .

7. The organic light-emitting device of claim 6 , wherein the organic layer comprising the carbazole-based compound is a hole injection layer or a hole transport layer.

8. The organic light-emitting device of claim 6 , wherein the organic layer comprising the carbazole-based compound is a single layer having both a hole injection capability and a hole transport capability.

9. The organic light-emitting device of claim 7 , which has one of the following structures:

first electrode/hole injection layer/emitting layer/second electrode;

first electrode/hole injection layer/hole transport layer/emitting layer/electron transport layer/second electrode; or

first electrode/hole injection layer/hole transport layer/emitting layer/electron transport layer/electron injection layer/second electrode.

10. The organic light-emitting device of claim 9 , further comprising a hole blocking layer or an electron blocking layer or a hole blocking layer and an electron blocking layer.

11. The organic light-emitting device of claim 8 , which has one of the following structures:

first electrode/single layer having hole injection capability and hole transport capability/emitting layer/electron transport layer/second electrode or

first electrode/single layer having hole injection capability and hole transport capability/emitting layer/electron transport layer/electron injection layer/second electrode.

12. The organic light-emitting device of claim 11 , further comprising a hole blocking layer or an electron blocking layer or a hole blocking layer and an electron blocking layer.

13. The organic light-emitting device of claim 6 , wherein the organic layer comprising the carbazole-based compound is an emitting layer.

14. The organic light-emitting device of claim 13 , wherein the emitting layer comprises a phosphorescent or fluorescent material.

15. An organic light-emitting device comprising a hole injection layer or a hole transport layer or a single layer having both hole injection and hole transport capabilities comprising the carbazole-based compound of claim 1 .

16. An organic light-emitting device comprising an emitting layer comprising the carbazole-based compound of claim 1 .