Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound has a benzofuroquinoxaline skeleton or a benzothienoquinoxaline skeleton. The organic compound is represented by General Formula (G1). In the formula, Q represents O or S, and each of R1 to R8 independently represents any of hydrogen, a halogeno group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. At least one of R1 to R8 includes a substituted or unsubstituted condensed aromatic or heteroaromatic ring having 3 to 24 carbon atoms.
1. An organic compound represented by General Formula (G1):
wherein Q represents O,
wherein each of R 1 to R 8 independently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms, and
wherein at least one of R 1 to R 8 comprises a substituted or unsubstituted condensed aromatic ring having 3 to 24 carbon atoms or a substituted or unsubstituted condensed heteroaromatic ring having 3 to 24 carbon atoms.
2. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 4 and at least one of R 5 to R 8 each comprise a substituted or unsubstituted condensed aromatic ring having 3 to 24 carbon atoms or a substituted or unsubstituted condensed heteroaromatic ring having 3 to 24 carbon atoms.
3. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 8 comprises any of substituted or unsubstituted naphthalene, fluorene, phenanthrene, triphenylene, dibenzothiophene, dibenzofuran, and carbazole rings.
4. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 4 and at least one of R 5 to R 8 each comprise any of substituted or unsubstituted naphthalene, fluorene, phenanthrene, triphenylene, dibenzothiophene, dibenzofuran, and carbazole rings.
5. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 8 comprises A via a substituted or unsubstituted arylene group having 6 to 24 carbon atoms or a substituted or unsubstituted heteroarylene group having 3 to 24 carbon atoms, A being represented by any of General Formulae (A-1) to (A-4):
wherein each of R 11 to R 18 independently represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group.
6. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 4 and at least one of R 5 to R 8 each comprise A via a substituted or unsubstituted arylene group having 6 to 24 carbon atoms or a substituted or unsubstituted heteroarylene group having 3 to 24 carbon atoms, A being represented by any of General Formulae (A-1) to (A-4):
wherein each of R 11 to R 18 independently represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group.
7. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 8 comprises A represented by any of General Formulae (A-1) to (A-4):
wherein each of R 11 to R 18 independently represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group.
8. The organic compound according to claim 1 ,
wherein at least one of R 1 to R 4 and at least one of R 5 to R 8 each comprise A represented by any of General Formulae (A-1) to (A-4):
wherein each of R 11 to R 18 independently represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group.
9. The organic compound according to claim 1 , wherein the organic compound is represented by Structural Formula (100):
10. The organic compound according to claim 1 , wherein the organic compound is represented by Structural Formula (200) or Structural Formula (262):
11. A light-emitting element comprising an organic compound represented by General Formula (G1):
wherein Q represents O,
wherein each of R 1 to R 8 independently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms, and
wherein at least one of R 1 to R 8 comprises a substituted or unsubstituted condensed aromatic ring having 3 to 24 carbon atoms or a substituted or unsubstituted condensed heteroaromatic ring having 3 to 24 carbon atoms.
12. The light-emitting element according to claim 11 , comprising an EL layer between a pair of electrodes,
wherein the EL layer comprises the organic compound.
13. The light-emitting element according to claim 11 , comprising an EL layer between a pair of electrodes,
wherein the EL layer comprises a light-emitting layer, and
wherein the light-emitting layer comprises the organic compound.
14. The light-emitting element according to claim 11 , comprising an EL layer between a pair of electrodes,
wherein the EL layer comprises a light-emitting layer, and
wherein the light-emitting layer comprises the organic compound and an organometallic complex represented by the following formula:
15. A light-emitting device comprising:
the light-emitting element according to claim 11 ; and
a transistor or a substrate.
16. An electronic device comprising:
the light-emitting device according to claim 15 ; and
a microphone, a camera, an operation button, an external connection portion, or a speaker.
17. A lighting device comprising:
the light-emitting device according to claim 15 ; and
a housing, a cover, or a support.
18. A light-emitting element comprising:
an organic compound having a benzofuro[2,3-b]quinoxaline skeleton; and
a light-emitting substance,
wherein the organic compound having the benzofuro[2,3-b]quinoxaline skeleton is a host material.
19. The light-emitting element according to claim 18 , wherein the light-emitting substance comprises a substance converting triplet excitation energy into light emission.
20. The light-emitting element according to claim 18 , wherein the light-emitting substance comprises a phosphorescence material.
21. The light-emitting element according to claim 18 , wherein the light-emitting substance comprises a TADF material.
22. A light-emitting device comprising:
the light-emitting element according to claim 18 ; and
a transistor or a substrate.
23. An electronic device comprising:
the light-emitting device according to claim 22 ; and
a microphone, a camera, an operation button, an external connection portion, or a speaker.
24. A lighting device comprising:
the light-emitting device according to claim 22 ; and
a housing, a cover, or a support.