Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
A novel organic compound with which the emission characteristics, emission efficiency, and reliability of a light-emitting element can be improved; a light-emitting element including the organic compound; and a light-emitting device, an electronic device, and a lighting device each including the light-emitting element. The light-emitting element includes a hole-transport layer and a light-emitting layer between a pair of electrodes. At least one of the hole-transport layer and the light-emitting layer includes an organic compound having a skeleton represented by General Formula (G0).
1. A light-emitting element comprising:
a hole-transport layer and a light-emitting layer between a pair of electrodes,
wherein at least one of the hole-transport layer and the light-emitting layer includes an organic compound having a skeleton represented by a formula (G1),
wherein:
Ar 2 is any one of an unsubstituted phenyl group, an unsubstituted biphenyl group, and a group having 3 to 6 benzene rings which are bonded at meta-positions;
Ar 3 is any one if a phenylene group, a biphenyldiyl group, and an arylene group having 3 to 6 rings which are bonded at meta-positions; and
R 1 to R 8 are each independently any one of hydrogen, an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group.
2. The light-emitting element according to claim 1 ,
wherein Ar 2 is a phenyl group or a biphenyl group, and
wherein Ar 3 is a phenylene group or a biphenyldiyl group.
3. The light-emitting element according to claim 2 , wherein Ar 3 is a metaphenylene group or a biphenyl-3,3′-diyl group.
4. A light-emitting device comprising the light-emitting element according to claim 1 .
5. An electronic device comprising the light-emitting device according to claim 4 .
6. A lighting device comprising the light-emitting device according to claim 4 .
7. An organic compound represented by a formula (G1),
wherein:
Ar 2 is any one of an unsubstituted phenyl group, an unsubstituted biphenyl group, and a group having 3 to 6 benzene rings which are bonded at meta-positions;
Ar 3 is any one of a phenylene group, a biphenyldiyl group, and an arylene group having 3 to 6 benzene rings which are bonded at meta-positions; and
R 1 to R 8 are each independently any one of hydrogen, an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group.
8. The organic compound according to claim 7 ,
wherein Ar 2 is a phenyl group or a biphenyl group, and
wherein Ar 3 is a phenylene group or a biphenyldiyl group.
9. The organic compound according to claim 8 , wherein Ar 3 is a metaphenylene group or a biphenyl-3,3′-diyl group.
10. The organic compound according to claim 7 , wherein the organic compound is represented by a formula (G2-1)
11. The organic compound according to claim 7 , wherein the organic compound is represented by a formula (G2-2)
12. The organic compound according to claim 7 , wherein the organic compound is represented by a formula (G3)
13. An organic compound represented by a formula (G1),
wherein:
Ar 2 is an unsubstituted phenyl group or an unsubstituted biphenyl group;
Ar 3 is any one of a phenylene group, a biphenyldiyl group, and an arylene group having 3 to 6 benzene rings which are bonded at meta-postions; and
R 1 to R 8 are each independently any one of hydrogen, an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group.
14. The organic compound according to claim 13 , wherein Ar 3 is a phenylene group or a biphenyldiyl group.
15. The organic compound according to claim 14 , wherein Ar 3 is a metaphenylene group or a biphenyl-3,3′-diyl group.