Heterocyclic compound, light-emitting element, display module, lighting module, light-emitting device, display device, lighting device, and electronic device
Provided is a heterocyclic compound that can be used for a carrier-transport material, a host material, or a light-emitting material in a light-emitting element. The heterocyclic compound has an indolo[3,2,1-jk]carbazole skeleton and a dibenzo[f,h]quinoxaline skeleton which are linked to each other through an arylene group. The wide band gap of the heterocyclic compound allows excitation of a green-emissive phosphorescent material, which contributes to the formation of a highly efficient light-emitting element.
1. A compound represented by a formula (G0):
A 1 -Ar-A 2 (G0),
wherein:
A 1 represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group;
A 2 represents a substituted or unsubstituted indolo[3,2,1-jk]carbazolyl group; and
Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.
2. The compound according to claim 1 ,
wherein a substituent of any of the dibenzo[f,h]quinoxalinyl group, the indolo[3,2,1-jk]carbazolyl group, and the arylene group is selected from an alkyl group having 1 to 6 carbon atoms and an aryl group having 6 to 13 carbon atoms.
3. A light-emitting element comprising the compound according to claim 1 .
4. An electronic device comprising the light-emitting element according to claim 3 .
5. A lighting device comprising the light-emitting element according to claim 3 .
6. A compound represented by a formula (G1):
wherein:
R 1 to R 19 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms; and
Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.
7. The compound according to claim 6 ,
wherein a substituent of the arylene group is selected from an alkyl group having 1 to 6 carbon atoms and an aryl group having 6 to 13 carbon atoms.
8. The compound according to claim 6 ,
wherein the arylene group is selected from a phenylene group, a biphenyldiyl group, a naphthalenediyl group, and a fluorenediyl group.
9. The compound according to claim 6 ,
wherein the arylene group is selected from a meta-phenylene group and a 1,1′-biphenyl-3,3′-diyl group.
10. The compound according to claim 6 ,
wherein:
the compound is represented by a formula (G2):
R 1 to R 9 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms;
one of R 20 to R 24 represents a group represented by a formula (G2-1) or (G2-2), and the others each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms:
R 10 to R 19 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms; and
one of R 30 to R 34 represents a group represented by the formula (G2-1), and the others each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms.
11. The compound according to claim 6 ,
wherein:
the compound is represented by a formula (G3):
wherein R 1 to R 22 and R 24 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms.
12. The compound according to claim 6 ,
wherein the compound is represented by any of formulae (101) and (143):
13. A light-emitting element comprising the compound according to claim 6 .
14. An electronic device comprising the light-emitting element according to claim 13 .
15. A lighting device comprising the light-emitting element according to claim 13 .