There is provided an improved light receiving member for use in electrophotography comprising a substrate for electrophotography and a light receiving layer constituted by a photoconductive layer and a surface layer, the photoconductive layer being formed of an amorphous material containing silicon atoms...http://www.google.com/patents/US4788120?utm_source=gb-gplus-sharePatent US4788120 - Light receiving member for use in electrophotography having an amorphous silicon layer
