Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1986-06-23
1987-12-15
Goodrow, John L.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 66, 430 84, G03G 514
Patent
active
047133082
ABSTRACT:
In an electrophotographic photosensitive member according to the present invention, a barrier layer is formed on a conductive substrate, and a photoconductive layer on the barrier layer. The photoconductive layer is formed of a microcrystalline silicon layer, whose crystallinity varies all the way through its thickness. The higher the crystallinity of the microcrystalline silicon layer, the more distinguishable are the crystalline properties, the narrower is the optical band gap, and the higher is the sensitivity to long-wavelength light. If the crystallinity becomes lower, then the amorphous properties are enhanced, and the resistance is increased in proportion. Thus, the chargeability and the sensitivity to long-wavelength light of the microcrystalline silicon layer can be improved by varying its crystallinity in the photoconductive layer.
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patent: 4420546 (1983-12-01), Kanbe et al.
patent: 4523214 (1985-06-01), Hirose et al.
patent: 4560634 (1985-12-01), Matsuo et al.
patent: 4582773 (1986-04-01), Johncock et al.
Solar Energy Materials 11 (1984), pp. 85-95.
Ikezue Tatsuya
Mitani Wataru
Sanjoh Akira
Yamamoto Mariko
Yoshizawa Shuji
Goodrow John L.
Kabushiki Kaisha Toshiba
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