Triarylamine derivative, light-emitting substance, light-emitting element, light-emitting device, and electronic device
View Patent ↗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. A triarylamine derivative represented by a general formula (G1),
wherein Ar represents 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 triarylamine derivative according to claim 1 , wherein n and m in the general formula (G1) represents 1.
3. The triarylamine derivative according to claim 1 , wherein the triarylamine derivative is represented by a structural formula (1),
4. The triarylamine derivative according to claim 1 , wherein the triarylamine derivative is represented by a structural formula (2),
5. A light-emitting device comprising:
an anode;
a cathode; and
an EL layer between the anode and the cathode, the EL layer comprising a triarylamine derivative represented by a general formula (G1),
wherein Ar represents 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.
6. The light-emitting device according to claim 5 , wherein the EL layer further comprises a fluorescent light-emitting substance.
7. The light-emitting device according to claim 5 , wherein the EL layer further comprises a phosphorescent light-emitting substance.
8. The light-emitting device according to claim 5 , wherein the EL layer comprises a light-emitting layer, and
wherein the light-emitting layer comprises the triarylamine derivative as a host material.
9. The light-emitting device according to claim 5 , wherein the EL layer comprises a hole transporting layer, and
wherein the hole transporting layer comprises the triarylamine derivative.
10. An electronic device comprising a light-emitting device for a display portion, the light-emitting device comprising:
an anode;
a cathode; and
an EL layer between the anode and the cathode, the EL layer comprising a triarylamine derivative represented by a general formula (G1),
wherein Ar represents 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.
11. The electronic device according to claim 10 , wherein the EL layer further comprises a fluorescent light-emitting substance.
12. The electronic device according to claim 10 , wherein the EL layer further comprises a phosphorescent light-emitting substance.
13. The electronic device according to claim 10 , wherein the EL layer comprises a light-emitting layer, and
wherein the light-emitting layer comprises the triarylamine derivative as a host material.
14. The electronic device according to claim 10 , wherein the EL layer comprises a hole transporting layer, and
wherein the hole transporting layer comprises the triarylamine derivative.