Electrophotographic photoreceptor withstanding repeated use contains a 2,5-bis-quinone-substituted thiophene compound as electron transporter

摘要

An electrophotographic photoreceptor has a photosensitive layer directly or via a base layer on an electrically-conductive substrate, the photosensitive layer containing a 2,5-bis-quinone-substituted thiophene compound. An electrophotographic photoreceptor has a photosensitive layer directly or via a base layer on an electrically-conductive substrate, the photosensitive layer containing a 2,5-bis-quinone-substituted thiophene compound of formula (I); R1 - R4 and R9 - R12 = H, optionally substituted 1-12C alkyl, optionally substituted cycloalkyl, optionally substituted aryl or 1-6C alkoxy; R5 and R6 = H, optionally substituted 1-12C alkyl, optionally substituted aryl or optionally substituted heterocyclic; and R7 and R8 = H, optionally substituted 1-12C alkyl, optionally substituted aryl or 1-6C alkoxy, each substituent being halogen, 1-6C alkyl or alkoxy, aryl or heterocyclic