AMORPHOUS SILICON PHOTOCONDUCTIVE MEMBER INCLUDING AN INTERMEDIATE COMPOSITE BARRIER LAYER

摘要

A photoconductive member comprising a support for a photoconductive member, a photoconductive layer constituted of an amorphous material comprising silicon atom as a matrix and a barrier layer between said support and said photoconductive layer, said barrier layer having a double-layer structure and comprising a first barrier layer constituted of an amorphous material comprising silicon atom as a matrix and containing impurities which control the property of conductivity and a second barrier layer constituted of an electrically insulating material different from said amorphous material constituting said first barrier layer. The device has excellent electrical, optical and photoconductive characteristics and excellent environmental stability.