Patent ID: 6322942
Filing Date: 2001-11-27
Classification: G03G

Abstract:
A xerographic photoreceptor primarily formed by the hydrogenated amorphous silicon material, wherein the xerographic photoreceptor is photosensitive body used in copying and manufactured by a plasma enhanced low pressure chemical vapor deposition system (PE-LPCVD), wherein a conductive aluminum substrate is grown with a Al.sub.2 O.sub.3 oxidation layer, a n type hydrogenated amorphous silicon charge blocking layer, a hydrogenated intrinsic amorphous silicon layer charge generation transport layer and hydrogenated amorphous carbon surface protecting layer, thus the xerographic photoreceptor has a high photosensitivity and a long lifetime; method for manufacturing the xerographic photoreceptor comprising the steps of:a. placing the aluminum substrate into a furnace, baking the aluminum substrate under a temperature of 90.about.95.degree. C. by thermal oxidation method, thus the aluminum substrate is grown as an Al.sub.2 O.sub.3 oxidation layer;b. placing the aluminum substrate into a gas deposition system, filling gas into the system, the radio frequency power being set at 30 W, the temperature of the substrate being set at 150.degree. C., the deposition pressure being set at 0.75 Torr for growing a n type hydrogenated amorphous silicon blocking layer on the aluminum substrate with an Al.sub.2 O.sub.3 oxidation layer;c. placing the n type hydrogenated amorphous silicon blocking layer into a gas deposition system, and filling into mixing gases with a radio frequency power being set at 30 W, the temperature of the substrate being set at 150.degree. C., the deposit pressure being set at 2 Torr for growing an intrinsic hydrogenated amorphous silicon charge generation transport layer on the n type hydrogenated amorphous silicon blocking layer on the aluminum substrate with an Al.sub.2 O.sub.3 oxidation layer;d. placing the intrinsic hydrogenated amorphous silicon charge generation transport layer into the gas deposition system, and then filling mixing gas with a radio frequency power being set at 40 W, the temperature of the substrate being set at 25.degree. C., the deposition pressure being set at 0.8 Torr for growing a hydrogenated amorphous carbon surface protecting layer on the aluminum substrate with the intrinsic hydrogenated amorphous silicon charge generation transport layer.