Organic compound, light-emitting element, display module, lighting module, light-emitting device, display device, electronic device, and lighting device
A novel organic compound that can be used as an electron-injection material or an electron-transport material of a light-emitting element is provided. An organic compound with which a display device having less crosstalk can be obtained is provided. A light-emitting device, a display device, and an electronic device each having less crosstalk are provided. An organic compound including two or three benzo[h]quinazoline rings is provided. In the organic compound, two or three benzo[h]quinazoline rings are preferably included in the substituent including an aromatic ring or a heteroaromatic ring and having 3 to 30 carbon atoms. When two or three benzo[h]quinazoline rings are included in a substituent particularly including a heteroaromatic ring and having 3 to 30 carbon atoms, a high electron-transport property can be obtained.
1. A light-emitting element comprising:
a first electrode;
a first light-emitting unit over the first electrode;
a second light-emitting unit over the first light-emitting unit;
a first layer between the first light-emitting unit and the second light-emitting unit;
a second layer between the first electrode and the first layer; and
a second electrode over the second light-emitting unit,
wherein the first light-emitting unit comprises a first light-emitting layer,
wherein the second light-emitting unit comprises a second light-emitting layer,
wherein the second layer comprises an organic compound represented by a general formula (G1):
wherein a substituent A represents a substituted or unsubstituted aromatic ring having 3 to 30 carbon atoms or a substituted or unsubstituted heteroaromatic ring having 3 to 30 carbon atoms,
wherein each of R 1 to R 7 independently represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 6 to 13 carbon atoms, and
wherein n is 2 or 3.
2. A display module comprising the light-emitting element according to claim 1 .
3. A lighting module comprising the light-emitting element according to claim 1 .
4. An electronic device comprising the light-emitting element according to claim 1 .
5. The electronic device according to claim 4 , further comprising,
a first light-emitting element;
a second light-emitting element; and
a third light-emitting element,
wherein the second light-emitting element is between the first light-emitting element and the third light-emitting element.
6. The light-emitting element according to claim 1 , wherein the second layer is in contact with the first layer.
7. The light-emitting element according to claim 1 , wherein the organic compound is represented by a general formula (G2):
8. The light-emitting element according to claim 1 , wherein the organic compound is represented by a general formula (G3):
9. The light-emitting element according to claim 1 , wherein the substituent A represents a substituent comprising one or more pyridine skeletons or one or more rings each comprising a benzene skeleton and having less than or equal to 30 carbon atoms.
10. The light-emitting element according to claim 1 , wherein the organic compound is represented by a general formula (G4):
11. The light-emitting element according to claim 1 , wherein R 1 represents a phenyl group or a naphthyl group.
12. A light-emitting element comprising:
a first electrode;
a first layer over the first electrode;
a second layer over the first layer;
a third layer over the second layer; and
a second electrode over the third layer,
wherein the second layer comprises at least one of an alkali metal or an alkaline earth metal,
wherein the first layer comprises a first light-emitting substance and an organic compound represented by a general formula (G1):
wherein a substituent A represents a substituted or unsubstituted aromatic ring having 3 to 30 carbon atoms or a substituted or unsubstituted heteroaromatic ring having 3 to 30 carbon atoms,
wherein each of R 1 to R 7 independently represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 6 to 13 carbon atoms,
wherein n is 2 or 3, and
wherein the third layer comprises a second light-emitting substance.
13. The light-emitting element according to claim 12 , wherein the second layer is in contact with the first layer.
14. The light-emitting element according to claim 12 , wherein the organic compound is represented by a general formula (G2):
15. The light-emitting element according to claim 12 ,
wherein the organic compound is represented by a general formula (G3):
16. The light-emitting element according to claim 12 , wherein the substituent A represents a substituent comprising one or more pyridine skeletons or one or more rings each comprising a benzene skeleton and having less than or equal to 30 carbon atoms.
17. The light-emitting element according to claim 12 , wherein the organic compound is represented by a general formula (G4):
18. The light-emitting element according to claim 12 , wherein R 1 represents a phenyl group or a naphthyl group.
19. An electronic device comprising the light-emitting element according to claim 12 , further comprising,
a first light-emitting element;
a second light-emitting element; and
a third light-emitting element,
wherein the second light-emitting element is between the first light-emitting element and the third light-emitting element.
20. A display module comprising the light-emitting element according to claim 12 .
21. A lighting module comprising the light-emitting element according to claim 12 .