Light-emitting device, display device, electronic device, organic compound, and lighting device
View Patent ↗An organic compound that enables provision of a light-emitting device with high emission efficiency and high reliability is provided. An organic compound represented by General Formula (G1-1) below is provided. Note that in General Formula (G1-1) below, R1 to R10 each independently represent any one of hydrogen, an alkyl group having 3 to 10, inclusive, carbon atoms, and a substituted or unsubstituted cycloalkyl group having 3 to 10, inclusive, carbon atoms, and Ar1 and Ar2 each independently represent an aromatic hydrocarbon group having 6 to 13, inclusive, carbon atoms with a substituent. The Ar1 and the Ar2 each include, as the substituent, one or more of a cycloalkyl group having 3 to 12, inclusive, carbon atoms and a cycloalkyl group having a bridge structure and having 7 to 10, inclusive, carbon atoms.
1 . An organic compound represented by General Formula (G1-1),
wherein R 1 to R 10 each independently represent any one of hydrogen, an alkyl group having 3 to 10, inclusive, carbon atoms, and a substituted or unsubstituted cycloalkyl group having 3 to 10, inclusive, carbon atoms,
wherein in the case where the cycloalkyl group has a substituent, the substituent is any of an alkyl group having 1 to 7, inclusive, carbon atoms, a cycloalkyl group having 5 to 7, inclusive, carbon atoms, and an aryl group having 6 to 12, inclusive, carbon atoms,
wherein Ar 1 and Ar 2 each independently represent an aromatic hydrocarbon group having 6 to 13, inclusive, carbon atoms with a substituent, and
wherein Ar 1 and Ar 2 each comprise, as the substituent, one or more of a cycloalkyl group having 3 to 12, inclusive, carbon atoms and a cycloalkyl group having a bridge structure and having 7 to 10, inclusive, carbon atoms.
2 . The organic compound according to claim 1 ,
wherein Ar 1 and Ar 2 each represent a phenyl group with a substituent.
3 . An organic compound represented by General Formula (G1-2),
wherein R 1 to R 10 each independently represent any one of hydrogen, an alkyl group having 3 to 10, inclusive, carbon atoms, and a substituted or unsubstituted cycloalkyl group having 3 to 10, inclusive, carbon atoms,
wherein in the case where the cycloalkyl group has a substituent, the substituent is any of an alkyl group having 1 to 7, inclusive, carbon atoms, a cycloalkyl group having 5 to 7, inclusive, carbon atoms, and an aryl group having 6 to 12, inclusive, carbon atoms,
wherein Ar 1 and Ar 2 each independently represent an aromatic hydrocarbon group having 6 to 13, inclusive, carbon atoms with three or more substituents, and
wherein Ar 1 and Ar 2 each comprise, as the substituents, two or more selected from an alkyl group having 1 to 10, inclusive, carbon atoms, a cycloalkyl group having 3 to 12, inclusive, carbon atoms, and a cycloalkyl group having a bridge structure and having 7 to 10, inclusive, carbon atoms.
4 . The organic compound according to claim 3 ,
wherein Ar 1 and Ar 2 each comprise three to five substituents.
5 . The organic compound according to claim 3 ,
wherein Ar 1 and Ar 2 each represent a phenyl group with a substituent.
6 . The organic compound according to claim 5 ,
wherein the substituents of Ar 1 and Ar 2 are bonded to both ortho positions and para positions of Ar 1 and Ar 2 .
7 . The organic compound according to claim 1 ,
wherein Ar 1 and Ar 2 each comprise three substituents.
8 . The organic compound according to claim 1 ,
wherein the substituents of Ar 1 and Ar 2 are each a cyclohexyl group.
9 . An organic compound represented by General Formula (G2),
wherein R 1 to R 10 and R 21 to R 24 each independently represent any one of hydrogen, an alkyl group having 3 to 10, inclusive, carbon atoms, and a substituted or unsubstituted cycloalkyl group having 3 to 10, inclusive, carbon atoms,
wherein in the case where the cycloalkyl group has a substituent, the substituent is any of an alkyl group having 1 to 7, inclusive, carbon atoms, a cycloalkyl group having 5 to 7, inclusive, carbon atoms, and an aryl group having 6 to 12, inclusive, carbon atoms, and
wherein X 1 to X 6 each independently represent any one of an alkyl group having 1 to 10, inclusive, carbon atoms, a cycloalkyl group having 3 to 12, inclusive, carbon atoms, and a cycloalkyl group having a bridge structure and having 7 to 10, inclusive, carbon atoms.
10 . The organic compound according to claim 9 ,
wherein R 21 to R 24 each represent hydrogen.
11 . The organic compound according to claim 9 ,
wherein X 1 to X 6 each represent a cycloalkyl group having 3 to 12, inclusive, carbon atoms.
12 . The organic compound according to claim 9 ,
wherein X 1 to X 6 each represent a cyclohexyl group.
13 . The organic compound according to claim 1 ,
wherein R 1 to R 10 each represent hydrogen.
14 . A light-emitting device material comprising the organic compound according to claim 1 .
15 . A light-emitting material for a light-emitting device, comprising the organic compound according to claim 1 , for receiving excitation energy from a material configured to convert triplet excitation energy into light emission, and converting the excitation energy into light emission from a singlet excited state in a light-emitting layer.
16 . A light-emitting device comprising the organic compound according to claim 1 .
17 . A light-emitting device comprising, in a light-emitting layer, a material configured to convert triplet excitation energy into light emission and the organic compound according to claim 1 configured to convert singlet excitation energy into light emission.
18 . An electronic device comprising the light-emitting device according to claim 16 , and a sensor, an operation button, a speaker, or a microphone.
19 . A light-emitting apparatus comprising the light-emitting device according to claim 16 , and a transistor or a substrate.
20 . A lighting device comprising the light-emitting device according to claim 16 , and a housing.