Electrophotographic sensitive member with amorphous Si barrier layer
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United States of America Patent
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Jun 23, 1987
Issued Date -
N/A
app pub date -
Jul 15, 1986
filing date -
Apr 1, 1983
priority date (Note) -
Expired
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Abstract
The invention relates to improvements in an electrophotographic sensitive member having a photoconductive layer formed with amorphous silicon produced by glow discharge decomposition or sputtering. An electrophotographic sensitive member is formed by laminating an amorphous silicon barrier layer and an amorphous photoconductive layer successively on an electrically conductive substrate, the first mentioned layer containing an impurity of Group IIIa of Periodic Table of Elements, or nitrogen and impurity of Group IIIa of same Table, and also containing oxygen within a range of 0.1 to 20.0 atomic % at the point of the layer and in a progressively decreasing pattern throughout the rest thereof. Constructed as such, the photosensitive member has an increased photosensitivity to near-infrared beams, a large charge-holding capability, and low-rate dark attenuation characteristics. In addition, it is less expensive to manufacture.
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