Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of a light-emitting element is provided. A novel light-emitting element with high emission efficiency and high heat resistance is provided. A heterocyclic compound represented by General Formula (G 1 ). A represents any of a dibenzothiophenyl group, a dibenzofuranyl group, and a carbazolyl group. DBq represents a dibenzo[f,h]quinoxalinyl group. In addition, n is 0 or 1. Each of Ar 1 to Ar 4 independently represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms. In Ar 1 to Ar 4 , the adjacent arylene groups may be bonded to each other to form a ring. When the adjacent arylene groups in Ar 1 to Ar 4 form a fluorene skeleton, the fluorene skeleton may have a substituent.
1. A heterocyclic compound represented by Formula (G8-1):
wherein the dibenzo[f,h]quinoxaline group is bonded to the para position of the benzene ring bonding to R 41 to R 44 from the benzene ring bonding to R 51 to R 54 ,
wherein the condensed ring comprising Z is bonded to the para position of the benzene ring bonding to R 61 to R 64 from the benzene ring bonding to R 51 to R 54 ,
wherein Z represents sulfur, and
wherein each of R 11 to R 19 , R 21 to R 27 , R 41 to R 44 , R 51 to R 54 , and R 61 to R 64 independently represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
2. A light-emitting device comprising:
a light-emitting portion; and
a substrate,
wherein the light-emitting portion comprises a light-emitting element comprising the heterocyclic compound according to claim 1 .
3. An electronic device comprising:
a display portion; and
an antenna, a battery, a housing, a speaker, a microphone, or an operation key,
wherein the display portion comprises the light-emitting device according to claim 2 .
4. A lighting device comprising:
the light-emitting device according to claim 2 ; and
a housing, a connection terminal, or a protective cover.
5. The heterocyclic compound according to claim 1 , wherein each of R 11 to R 19 , R 21 to R 27 , R 41 to R 44 , R 51 to R 54 , and R 61 to R 64 is independently represented by any of Formulae (S01) to (S25):
6. A heterocyclic compound represented by Formula (G1):
wherein A represents any of a substituted or unsubstituted dibenzothiophenyl group,
wherein DBq represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group,
wherein n is 0,
wherein each of Ar 1 , Ar 2 and Ar 3 independently represents one of a substituted or unsubstituted meta-phenylene group and a substituted or unsubstituted para-phenylene group, and
wherein Ar 1 is a meta-phenylene group, Ar 2 is a para-phenylene group, and Ar 3 is a meta-phenylene group in Formula (G1), or Ar 1 is a para-phenylene group, Ar 2 is a meta-phenylene group, and Ar 3 is a para-phenylene group in Formula (G1).
7. The heterocyclic compound according to claim 6 , wherein Ar 1 represents a para-phenylene group.
8. The heterocyclic compound according to claim 6 , wherein the heterocyclic compound is 2-[3″-(dibenzothiophen-4-yl)-3,1′:4′,1″-terphenyl-1-yl]dibenzo[f,h]quinoxaline.
9. A light-emitting device comprising:
a light-emitting portion; and
a substrate,
wherein the light-emitting portion comprises a light-emitting element comprising the heterocyclic compound according to claim 6 .
10. The light-emitting device according to claim 9 , wherein the heterocyclic compound is included in a light-emitting layer of the light-emitting element.
11. The light-emitting device according to claim 9 , wherein the heterocyclic compound is included in an electron-transport layer.
12. An electronic device comprising:
a display portion; and
an antenna, a battery, a housing, a speaker, a microphone, or an operation key,
wherein the display portion comprises the light-emitting device according to claim 9 .
13. A lighting device comprising:
the light-emitting device according to claim 9 ; and
a housing, a connection terminal, or a protective cover.