PHOTOSENSITIVE IMAGING MEMBER AND METHOD

摘要

A photosensitive imaging member (10) comprises, in order, a support substrate (12); a layer of a charge-injecting material (14); a layer of a charge transporting material (16) into which charges can be injected by the charge-injecting material (14); a layer of a charge-generating material (18) capable of injecting photo-generated charges into, and receiving charges from the charge transporting material (16); a charge-trapping layer (19); and an insulating overlayer (20). The charge-trapping layer preferably contains nitrogen-containing electron-donating molecules, such as aromatic amines having one of the following formulae: wherein Z is Ar or R, Ar being an aromatic radical or a substituted aromatic radical, and R being an aliphatic radical or a substituted aliphatic radical.