申请人:KAO CORPORATION
公开号:EP0347854A2
公开(公告)日:1989-12-27
A photoreceptor is useful for electrophotography and comprises (a) an electrically conductive substrate, (b) an electrric charge carrier generation layer and (c) an electric charge carrier transport layer containing therein an electric charge carrier transport compound having the formula (1):
in which R1, R1′ and R1˝ each are hydrogen, a linear or branched alkyl, a linear or branched alkyl having a substituent(s), an aryl or an aryl having a substituent(s), R2, R3, R2′, R3′, R2˝ and R3˝ each are hydrogen, a linear or branched alkyl, a linear or branched alkyl having a substituent(s), an aryl, an aryl having a substituent(s), an alkenyl, an alkenyl having a substituent(s), a heterocyclic ring or a heterocyclic ring having a substituent(s), R2 and R3 may form a ring with their adjacent carbon, R2′ and R3′ may form a ring with their adjacent carbon and R2˝ and R3˝ may form a ring with their adjacent carbon, A is a trivalent, aromatic hydrocarbon group.
一种光感受器可用于电致发光,它包括(a)导电基底,(b)电荷载流子产生层和(c)电荷载流子传输层,其中含有具有式(1)的电荷载流子传输化合物:
其中 R1、R1′和 R1˝各自为氢、直链或支链烷基、具有取代基的直链或支链烷基、芳基或具有取代基的芳基,R2、R3、R2′、R3′、R2˝ 和 R3˝ 各为氢、直链或支链烷基、具有取代基的直链或支链烷基、芳基、具有取代基的芳基、R2 和 R3 可与相邻的碳形成一个环,R2′ 和 R3′ 可与相邻的碳形成一个环,R2˝ 和 R3˝ 可与相邻的碳形成一个环,A 是三价芳香烃基团。