Multilayered photoresponsive device for electrophotography

Abstract

This invention is directed to an improved photoresponsive device comprised of a substrate, a hole blocking layer, an optional adhesive layer, an inorganic photogenerating layer, an organic photoconductive layer sensitive to infra-red radiation, and a top coating of a hole transport layer. More specifically, the present invention is directed to an improved photoresponsive device comprised in the order stated of the following layers: (1) a conductive substrate, (2) a metal oxide hole blocking layer, (3) an adhesive layer, (4) an inorganic photogenerating layer, (5) a photoconductive composition capable of enhancing or reducing the intrinsic properties of the photogenerating layer, which composition is selected from the group consisting of organic photoconductive compositions, charge transfer complex compositions, sensitizers, or mixtures thereof, and (6) a hole transport layer.

Dependencies are inferred from the claim text.