Photosensitive material for electrophotography

Details Photosensitive material for electrophotography Photosensitive material for electrophotography

1988-05-10

1990-01-02

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 65, 430 67, G03G 514

Patent

active

048912905

ABSTRACT:
A photosensitive material for electrophotography is provided, which comprises in sequence an aluminum substrate, a charge transport layer, a hole injection layer, a charge generation layer, and a surface protection layer, wherein the surface protection layer comprises an arsenic-selenium alloy containing from 35 atomic % to 45 atomic % arsenic.
The photosensitive material may also include a buffer layer comprising an arsenic-selenium alloy disposed between the surface protection layer and the charge generation layer, said buffer layer having a graduated arsenic concentration in which the concentration of arsenic increases in the direction of the surface protection layer. These layers provide enhanced lifetime for the materials while maintaning good print quality. Further, the insertion of the buffer layer allows for high temperature operation.

REFERENCES:
patent: 4296191 (1981-10-01), Jacobson et al.
patent: 4537849 (1985-08-01), Arai
patent: 4554230 (1985-11-01), Foley et al.
patent: 4675265 (1987-06-01), Kazama et al.
patent: 4710442 (1987-12-01), Koelling et al.

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