Electrophotographic sensitized body having a diffusion blocking

Details Electrophotographic sensitized body having a diffusion blocking Electrophotographic sensitized body having a diffusion blocking

1987-09-02

1989-02-14

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 65, 430 69, 430 84, G03G 514

Patent

active

048046060

ABSTRACT:
An electrophotographic sensitized body having a photoconductive layer comprising hydrogenated amorphous silicon on a substrate which comprises conductive material selected from the group consisting of A1, A1-Si (0.2-1.2 wt. %) - Mg (0.45-1.2 wt. %) alloy, super duralmine and extra super duralmine. Provided between the substrate and the photoconductive layer is a diffusion blocking layer 0.005-5 microns in thickness comprising a material selected from the group consisting of titanium nitride, tantalum nitride, hafnium nitride, platinum silicide, nickel silicide, palladium silicide, titanium silicide, hafnium silicide, tantalum silicide, tungsten silicide, vanadium silicide, niobium silicide, molybdenum silicide, zirconium silicide, tungsten carbide, titanium carbide, molybdenum carbide, hafnium carbide, vanadium carbide, niobium carbide, tantalum carbide and metallic chrome. The decrease in specific resistance of the photoconductive layer caused by diffusion of the substrate constituent to the photoconductive layer is prevented and the sensitivity to the light in the region of oscillatory wavelength of semiconductor is remarkably improved.

REFERENCES:
patent: 4521800 (1985-06-01), Howe
patent: 4640004 (1987-02-01), Thomas et al.
patent: 4641168 (1987-02-01), Yamazaki et al.
patent: 4687723 (1987-08-01), Ohshima et al.

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