Compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device
A novel compound is provided. The novel compound is represented by General Formula (G1). In General Formula (G1), A represents a substituted or unsubstituted condensed aromatic ring having 10 to 30 carbon atoms or a substituted or unsubstituted condensed heteroaromatic ring having 10 to 30 carbon atoms, and R 1 represents a substituted or unsubstituted aryl group having 6 to 25 carbon atoms. Each of Y 1 and Y 2 independently represents a cycloalkyl group having a bridge structure and having 7 to 10 carbon atoms.
1 . A compound comprising:
a fused ring having 10 to 30 carbon atoms;
a first substituent bonding to the fused ring; and
a second substituent bonding to the fused ring,
wherein the fused ring is one of an aromatic ring and a heteroaromatic ring,
wherein each of the first substituent and the second substituent is a diarylamino group,
wherein the first substituent comprises:
a first nitrogen atom bonding to the fused ring;
a first benzene ring bonding to the first nitrogen atom; and
a first cycloalkyl group bonding to the first benzene ring, the first cycloalkyl group comprising a bridge structure and having 7 to 10 carbon atoms, and
wherein the second substituent comprises:
a second nitrogen atom bonding to the fused ring;
a second benzene ring bonding to the second nitrogen atom; and
a second cycloalkyl group bonding to the second benzene ring, the second cycloalkyl group comprising a bridge structure and having 7 to 10 carbon atoms.
2 . The compound according to claim 1 , wherein each of the first cycloalkyl group and the second cycloalkyl group is an adamantyl group.
3 . The compound according to claim 1 ,
wherein the first benzene ring has two substituents each comprising an alkyl group having 3 to 10 carbon atoms, and
wherein the second benzene ring has two substituents each comprising an alkyl group having 3 to 10 carbon atoms.
4 . The compound according to claim 1 , wherein the fused ring is a luminophore.
5 . The compound according to claim 1 , wherein the first substituent and the second substituent bond to the fused ring at symmetric positions of the fused ring.
6 . The compound according to claim 1 ,
wherein the first substituent further comprises a third benzene ring bonding to the first nitrogen atom, and
wherein the second substituent further comprises a fourth benzene ring bonding to the second nitrogen atom.
7 . The compound according to claim 6 , wherein each of the third benzene ring and the fourth benzene ring has two substituents.
8 . A light-emitting device comprising the compound according to claim 1 .
9 . A light-emitting device comprising:
a first electrode;
a light-emitting layer over the first electrode; and
a second electrode over the light-emitting layer,
wherein the light-emitting layer comprises the compound according to claim 1 .
10 . The light-emitting device according to claim 9 ,
wherein the light-emitting layer further comprises a host material, and
wherein the host material is a material capable of a converting triplet excitation energy into singlet excitation energy.
11 . The light-emitting device according to claim 9 ,
wherein the light-emitting layer further comprises a host material, and
wherein the host material is a material capable of emitting delayed fluorescence.
12 . The light-emitting device according to claim 11 , wherein the host material is a substance that a difference between a triplet excited energy level and a singlet excited energy level is less than or equal to 0.2 eV.
13 . A light-emitting apparatus comprising:
the light-emitting device according to claim 9 ; and
a transistor electrically connected to the light-emitting device.
14 . An electronic device comprising:
the light-emitting apparatus according to claim 13 .
15 . A lighting device comprising:
the light-emitting device according to claim 9 ; and
at least one of a housing, a cover and a support base.