Triarylamine derivative, light-emitting substance, light-emitting element, light-emitting device, and electronic device
A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; α represents a substituted or unsubstituted naphthyl group; β represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and R 1 to R 8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.
1. An electronic device comprising:
an electrode; and
a layer comprising a triarylamine derivative adjacent to the electrode;
wherein the triarylamine derivative is represented by a general formula (G1),
wherein Ar comprises any of substituents represented by structural formulae (Ar-1) to (Ar-4),
wherein α represents substituent represented by structural formulae (α-1) or (α-2),
wherein β represents any of substituents represented by structural formulae (β-1) to (β-3),
wherein n and m each independently represent 1 or 2, and
wherein R 1 to R 8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a phenyl group.
2. The electronic device according to claim 1 , wherein n and m in the general formula (G1) represents 1.
3. The electronic device according to claim 1 , further comprising a light-emitting layer adjacent to the layer comprising the triarylamine derivative.
4. The electronic device according to claim 1 , further comprising at least one of a housing, an operation key, and a battery.
5. The electronic device according to claim 1 , wherein the layer comprising the triarylamine derivative is included in a display portion.
6. The electronic device according to claim 1 , wherein the layer comprising the triarylamine derivative is included in a light source.
7. The electronic device according to claim 1 , wherein the triarylamine derivative is represented by a structure formula (1),
8. A light-emitting device comprising:
a first electrode;
a first light-emitting layer over the first electrode;
a charge generation layer over the first light-emitting layer;
a layer comprising a triarylamine derivative over the charge generation layer;
a second light-emitting layer over the layer comprising the triarylamine derivative; and
a second electrode over the second light-emitting layer,
wherein the triarylamine derivative is represented by a general formula (G1),
wherein Ar comprises any of substituents represented by structural formulae (Ar-1) to (Ar-4),
wherein α represents substituent represented by structural formulae (α-1) or (α-2),
wherein β represents any of substituents represented by structural formulae (β-1) to (β-3),
wherein n and m each independently represent 1 or 2, and
wherein R 1 to R 8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a phenyl group.
9. The light-emitting device according to claim 8 , wherein n and m in the general formula (G1) represents 1.
10. The light-emitting device according to claim 8 , wherein the first light-emitting layer comprises a fluorescent light-emitting substance.
11. The light-emitting device according to claim 8 , wherein the second light-emitting layer comprises a phosphorescent light-emitting substance.
12. The light-emitting device according to claim 8 , wherein the second light-emitting layer comprises the triarylamine derivative as a host material.
13. The light-emitting device according to claim 8 , wherein the charge generation layer comprises a composite material of an organic compound and a metal oxide.
14. The light-emitting device according to claim 8 , wherein the triarylamine derivative is represented by a structure formula (1),