| 摘要 |
A triarylamine dimer derivative is represented by the following chemical formula Ä1Ü <CHEM> (in the chemical formula Ä1Ü: -Ar<1>, -Ar<2>, -Ar<3> and -Ar<4> are aryl groups being to have a substitutional group respectively, -R<1> and -R<2> are same or different to each other and one thereof is selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxyl group and a halogen atom; m and n are from 0 to 4; and with a proviso that -Ar<1> and -Ar<2>, -Ar<3> and -Ar<4> are being to bind respectively to compose a cyclic structure group having a nitrogen atom) having an amorphous phase indicated by spectrum of powder X-ray diffractometry. The triarylamine dimer derivative is used for a charge transport material, an electrophotographic photosensitive conductor having thereof, an electroluminescence elemental device having a hole transport material thereof. |
