Method of preparing photosensitive element for use in electropho

Details Method of preparing photosensitive element for use in electropho Method of preparing photosensitive element for use in electropho

1974-02-01

1976-11-09

Klein, David

Gas separation: apparatus

Magnetic separating means

427109, G03G 504

Patent

active

039908941

ABSTRACT:
In a photosensitive element including an electroconductive layer, a photoconductive layer manifesting persistent internal polarization and a highly insulative layer and utilized in the method of electrophotography wherein a first electric field is applied to deposit a charge of one polarity on the surface of the highly insulative layer, and a second field is applied to deposit a charge of the opposite polarity concurrently with the projection of a light image to form a latent image on the surface of the highly insulative layer, there is provided a vapor deposited layer at the interface between the photoconductive layer and the highly insulative layer which consists of a mixture of a first Se-Te alloy having a percentage of Te therein such that it is a highly photosensitive material and a second Se-Te alloy having a percentage of Te therein such that it has high charge trapping capability.

REFERENCES:
patent: 3355289 (1967-11-01), Hall et al.
patent: 3489560 (1970-01-01), Joseph
patent: 3723105 (1973-03-01), Kitajima et al.

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