Compound and organic light emitting device using the same
The present disclosure relates to a novel compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
1. A compound represented by the following Chemical Formula 1:
wherein in Chemical Formula 1,
both R 1 and R 2 are methyl, or both R 1 and R 2 are phenyl,
L 1 and L 2 are each independently a bond; or substituted or unsubstituted C 6-60 arylene,
provided that when both R 1 and R 2 are methyl, L 1 is substituted or unsubstituted C 6-60 arylene, and
Ar 1 and Ar 2 are each independently substituted or unsubstituted C 6-60 aryl; or C 2-60 heteroaryl containing O or S.
2. The compound of claim 1 , wherein
the compound represented by Chemical Formula 1 is represented by the following Chemical Formulas 1-1, 1-2, or 1-3:
wherein, in Chemical Formula 1-1 to 1-3,
R 1 , R 2 , L 1 , L 2 , Ar 1 , and Ar 2 are as defined in claim 1 .
3. The compound of claim 1 , wherein
L 1 and L 2 are each independently a bond, phenylene, biphenyldiyl, terphenyldiyl, quarterphenyldiyl, naphthalenediyl, anthracenediyl, dimethylfluorenediyl, phenanthrendiyl, pyrenediyl, or triphenylenediyl,
provided that when both R 1 and R 2 are methyl, L 1 is phenylene, biphenyldiyl, terphenyldiyl, quarterphenyldiyl, naphthalenediyl, anthracenediyl, dimethylfluorenediyl, phenanthrendiyl, pyrenediyl, or triphenylenediyl.
4. The compound of claim 1 , wherein
both R 1 and R 2 are phenyl,
L 1 is a bond, and
L 2 is a bond, or phenylene.
5. The compound of claim 1 , wherein
Ar 1 and Ar 2 are each independently phenyl unsubstituted or substituted with any one substituent selected from the group consisting of C 1-4 alkyl, halogen, cyano, and tri(C 1-4 alkyl)silyl; biphenylyl; terphenylyl; quaterphenylyl; naphthyl; anthracenyl; phenanthrenyl; triphenylenyl; dimethylfluorenyl; diphenylfluorenyl; dibenzofuranyl; or dibenzothiophenyl.
6. The compound of claim 1 , wherein the compound represented by the Chemical Formula 1 is any one selected from the group consisting of:
7. An organic light emitting device comprising a first electrode; a second electrode provided to face the first electrode; and at least one layer of organic material layers provided between the first electrode and the second electrode, wherein the at least one layer of the organic material layers comprises the compound according to claim 1 .
8. The organic light emitting device of claim 7 , wherein the at least one layer of the organic material layers comprises a hole injection layer, wherein the hole injection layer comprises the compound.
9. The organic light emitting device of claim 7 , wherein the at least one layer of the organic material layers comprises a hole transport layer, wherein the hole transport layer comprises the compound.
10. The organic light emitting device of claim 7 , wherein the at least one layer of the organic material layers comprises an electron blocking layer, wherein the electron blocking layer comprises the compound.