Multilayer electrophotographic amorphous silicon element for ele

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product

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430 60, 430 65, 430 95, 2525011, 427 74, 357 2, G03G 5082

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045268495

ABSTRACT:
An amorphous silicon based photoconductive element for use in electrophotographic copying processes, which exhibits a suitably low dark discharge rate with other good photoelectric properties, is composed of an electrically conductive support having applied thereto, in sequence, a barrier layer consisting essentially of a doped hydrogen-containing amorphous silicon, an intermediate layer consisting essentially of substantially undoped hydrogen-containing amorphous silicon, an intermediate barrier layer consisting essentially of doped hydrogen-containing amorphous silicon and a main, charge receiving layer consisting essentially of substantially undoped hydrogen-containing amorphous silicon.

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