Anthracene derivative, material for light emitting element, light emitting element, light emitting device, and electronic device
View Patent ↗It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material. The structure for solving the above problems in accordance with the present invention is an anthracene derivative simultaneously having a diphenylanthracene structure and a carbazole skeleton in a molecule as represented by structural formula ( 1 ):
1. An anthracene derivative represented by general formula (2):
wherein:
R 1 to R 13 are hydrogen, and
A 1 and A 2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 14 carbon atoms, or a substituted or unsubstituted diarylamino group.
2. An anthracene derivative represented by general formula (3):
wherein:
R 1 to R 13 hydrogen, and
A 1 and A 2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 14 carbon atoms, or a substituted or unsubstituted diarylamino group.
3. The anthracene derivative according to claim 1 , wherein A 1 and A 2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.
4. The anthracene derivative according to claim 2 , wherein A 1 and A 2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.
5. The anthracene derivative according to claim 1 , wherein A 1 is a substituted or unsubstituted diarylamino group and A 2 is hydrogen or a substituted or unsubstituted diarylamino group.
6. The anthracene derivative according to claim 2 , wherein A 1 is a substituted or unsubstituted diarylamino group and A 2 is hydrogen or a substituted or unsubstituted diarylamino group.
7. The anthracene derivative according to claim 2 , wherein A 1 is hydrogen and A 2 is a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.
8. An anthracene derivative represented by general formula (4):
wherein A 1 and A 2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 14 carbon atoms, or a substituted or unsubstituted diarylamino group.
9. The anthracene derivative according to claim 8 , wherein A 1 and A 2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.
10. The anthracene derivative according to claim 8 , wherein A 1 is a substituted or unsubstituted diarylamino group and A 2 is hydrogen or a substituted or unsubstituted diarylamino group.
11. The anthracene derivative according to claim 8 , wherein A 1 is hydrogen and A 2 is a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.
12. An anthracene derivative according to any one of claims 1 through 10 , wherein a band gap is from 2.7 eV to 3.0 eV.
13. An anthracene derivative according to any one of claims 1 through 12 , wherein maximum light emission is in the range of 400 nm to 500 nm.
14. An anthracene derivative represented by structural formula (5):
15. An anthracene derivative represented by structural formula (6):
16. An anthracene derivative represented by structural formula (7):
17. An anthracene derivative represented by structural formula (8):
18. An anthracene derivative represented by structural formula (9):
19. An anthracene derivative represented by structural formula (57):
20. An anthracene derivative represented by structural formula (23):
21. A light emitting element comprising:
a first electrode;
a second electrode; and
a light emitting layer between the first electrode and the second electrode,
wherein the light emitting layer contains the anthracene derivative according to any one of claims 1 , 2 , 8 , 14 - 18 , 19 , and 20 .
22. A light emitting device comprising the light emitting element according to claim 21 .
23. An electronic device comprising a display area, wherein the display area includes the light emitting element according to claim 21 .
24. The light emitting element according to claim 21 , further comprising:
a hole transporting layer between the first electrode and the light emitting layer; and
an electron transporting layer between the light emitting layer and the second electrode,
wherein the light emitting layer further contains a dopant with a band gap that is smaller than the band gap of the anthracene derivative.
25. The electronic device according to claim 23 , wherein the light emitting element emits white light.