Hydrazone-based charge transport compounds

摘要

Improved organophotoreceptor include:(a) a charge transport compound having the formulawhere R1 has a structure of:in which Ar is selected form the group consisting of;R4 is a hydrogen or an aromatic group and R2 and R3 are, independently, an (N,N-disubstituted) arylamine group;(b) a charge generating compound; and(c) an electrically conductive substrate.Additional improved charge transport compounds have the formulawhere R1 has a structure ofand R2 is a julolidene group or a carbazole group.