Electrophotosensitive member with multiple layers of amorphous s

Details Electrophotosensitive member with multiple layers of amorphous s Electrophotosensitive member with multiple layers of amorphous s

1985-07-10

1987-08-11

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 84, 430 95, G03G 5082

Patent

active

046861645

ABSTRACT:
The present invention relates to a photosensitive member containing an a-Si:Ge layer with an a-Si intermediate layer.
A photosensitive member containing a-Si:Ge has an excellent sensitivity to long wave light so that it is suitable for an electrophotographic system equipped with laser beam printer. However, the sensitivity of the member had not been improved because of their weak dark resistance and lower mobility of carrier in general.
In the present invention, it is provided a photosensitive member having a-Si:Ge layer excellent in the sensitivity to long wave length by controlling the balance between the Ge content and the thickness of the a-Si:Ge layer and the concentration of oxygen or oxygen and carbon in the electroconductive layer.

REFERENCES:
patent: 4394426 (1983-07-01), Shimizu et al.
patent: 4409308 (1983-11-01), Shimizu et al.
patent: 4451546 (1984-05-01), Kawamura et al.
patent: 4471042 (1984-09-01), Komatsu et al.
patent: 4490450 (1984-12-01), Shimizu et al.
patent: 4491626 (1985-01-01), Kawamura et al.

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