LAYERED ELECTROPHOTOGRAPHIC IMAGING MEMBERS EMPLOYING AS2SE3 GENERATOR LAYERS
Original Publication Date: 1992-Feb-29
Included in the Prior Art Database: 2004-Apr-05
Xerox Disclosure Journal
Layered electrophotographic imaging members often comprise a conductive layer, a charge generation layer and a charge transport layer. Examples of such layered electrophotographic imaging members may be found in U. S. Patent 4,265,990. It has been discovered that when the conductive layer comprises vapor deposited aluminum having an aluminum oxide surface, the charge generation layer comprises As2Se3, and the charge transport layer comprises diamine charge transport compounds dispersed in a polycarbonate resin, charge injection and dark decay of the imaging member increases with cycling. This decline in performance may be stabilized by applying a thin interface layer between the charge generation layer and the conductive layer. Interface layers that have significantly stabilized the cycling performance of layered electrophotographic imaging members through 30,000 cycles include polyvinyl butyral, polyvinyl pyrrolidone and gamma amino propyl trie thoxysilane.