METHOD FOR PREPARATION OF A PHOTORECEPTOR
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31
Xerox Disclosure Journal
A photoreceptor is prepared by in-itia1ly depositing on a con-ductive substrate a layer of a solution or a dispersion of bis(diphenylmethyldiselenide) (DPMDS) and an electrically insulating film-forming polymeric resin binder material. The layer is dried until it is substantially free of any solvent and then subjected to thermal energy which is capable of effecting decomposition of the DPMDS to elemental selenium. Heating an approximately 6 micron thick layer for about 5 minutes at about 150°C is sufficient to cause the decompo-sition of the DPMDS. The DPMDS undergoes carbon-selenium bond scission substantially completely so that substantially all of the selenium atoms are deposited in the binder matrix as elemental selenium. The decomposition products formed as a result of the extrusion of selenium from the DPMDS do not react with each other to reverse the reaction or form other organoselenium compounds so the photoconductive layer is very stable.