An organic electroluminescence device, comprising:
- a cathode:
- an anode;
- and
- an organic thin-film layer interposed between the cathode and the anode, wherein the organic thin-film layer comprises a light emitting layer and at least one selected from the group consisting of a hole transporting layer and a hole injecting layer, and
- wherein at least one selected from the group consisting of the hole transporting layer and the hole injecting layer comprises an aromatic amine derivative represented by formula (9):
- wherein:
- at least one of Ar3 to Ar5 represents the substituent A and at least one of Ar3 to Ar5 represents the substituent B;
- a group out of Ar3 to Ar5 except the substituent A and the substituent B represents a substituted or unsubstituted aryl group having 6 to 25 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 25 ring carbon atoms, wherein an optional substituent of the aryl group and the heteroaryl group is a linear or branched alkyl group having 1 to 15 carbon atoms, a cycloalkyl group having 3 to 15 ring carbon atoms, a trialkylsilyl group having linear or branched alkyl groups each having 1 to 15 carbon atoms, a triarylsilyl group having aryl groups each having 6 to 25 ring carbon atoms, an alkylarylsilyl group having a linear or branched alkyl group having 1 to 15 carbon atoms and an aryl group having 6 to 25 ring carbon atoms, an aryl group having 6 to 25 ring carbon atoms, a halogen atom, or a cyano group:
- the substituent A is represented by formula (1);
- the substituent B is represented by formula (2);
- wherein:
- L1 and L2 each represent a substituted or unsubstituted arylene group having 6 to 25 ring carbon atoms, and a substituent which L1 and L2 may have is a linear or branched alkyl group having 1 to 15 carbon atoms, a cycloalkyl group having 3 to 15 ring carbon atoms, a trialkylsilyl group having linear or branched alkyl groups each having 1 to 15 carbon atoms, a triarylsilyl group having aryl groups each having 6 to 25 ring carbon atoms, an alkylarylsilyl group having a linear or branched alkyl group having 1 to 15 carbon atoms and an aryl group having 6 to 25 ring carbon atoms, an aryl group having 6 to 25 ring carbon atoms, a halogen atom, or a cyano group;
- Ar1 represents a substituted or unsubstituted aryl group having 6 to 25 ring carbon atoms, and a substituent which Ar1 may have is selected from the group consisting of a linear or branched alkyl group having 1 to 15 carbon atoms, a cycloalkyl group having 3 to 15 ring carbon atoms, a trialkylsilyl group having linear or branched alkyl groups each having 1 to 15 carbon atoms, a triarylsilyl group having aryl groups each having 6 to 25 ring carbon atoms, an alkylarylsilyl group having a linear or branched alkyl group having 1 to 15 carbon atoms and an aryl group having 6 to 25 ring carbon atoms, an aryl group having 6 to 25 ring carbon atoms, a halogen atom, and a cyano group;
- a represents an integer of 0 to 3, and b, c, and d each independently represent an integer of 0 to 4;
- and
- R1 to R4 each independently represent a linear or branched alkyl group having 1 to 15 carbon atoms, a cycloalkyl group having 3 to 15 ring carbon atoms, a trialkylsilyl group having linear or branched alkyl groups each having 1 to 15 carbon atoms, a triarylsilyl group having aryl groups each having 6 to 25 ring carbon atoms, an alkylarylsilyl group having a linear or branched alkyl group having 1 to 15 carbon atoms and an aryl group having 6 to 25 ring carbon atoms, an aryl group having 6 to 25 ring carbon atoms, a halogen atom, or a cyano group, and a plurality of R1's to R4's adjacent to each other may be bonded to each other to form a saturated or unsaturated, divalent group that forms a ring.