Means responsive to light in a sandwich structure and an electrophotographic imaging process making use of such a device

摘要

A multi-layer electrophotographic material has a layer of trigonal selenium or gold to act as hole-injecting material; a layer of halogen-doped selenium- arsenic alloy to act as hole- transport material; a layer of a selenium- tellurium alloy as charge- generator material, and a layer of organic resin electrical insulation.