Non-porous and porous Al.sub.2 O.sub.3 barrier zones in layered

Details Non-porous and porous Al.sub.2 O.sub.3 barrier zones in layered Non-porous and porous Al.sub.2 O.sub.3 barrier zones in layered

1981-08-05

1983-01-18

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430526, 430 64, G03G 514

Patent

active

043692427

ABSTRACT:
The present invention relates to novel electrophotographic imaging systems and particularly to novel electrophotographic photoreceptors. These photoreceptors comprise a conductive substrate, an inorganic barrier-charge transport layer, and a photoconductive insulative layer. The barrier charge transport layer comprises aluminum oxide having a non-porous zone adjacent the substrate, and a porous charge transport zone.

REFERENCES:
patent: 2901348 (1959-08-01), Dessauer et al.
patent: 3816840 (1974-06-01), Kotz
patent: 3837851 (1974-09-01), Shattuck et al.
patent: 3928034 (1975-12-01), Rogensburger
patent: 4025339 (1977-05-01), Kuehnle

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