Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1987-07-30
1989-02-07
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 58, 430 65, 430 67, G03G 5082, G03G 514
Patent
active
048031399
ABSTRACT:
An electrophotographic photoreceptor is constituted by forming a barrier layer, a photoconductive layer, and a surface layer on an aluminum substrate drum, in the order stated. The photoconductive layer of this electrophotographic photoreceptor has a superlattice structure constituted by alternately stacking thin a-SiC:H layers having carbon contents different from each other. In this superlattice structure, the optical bandgaps of the respective layers differ from each other, a-SiC:H having a higher carbon content serves as a potential barrier, and a-SiC:H having a lower carbon content serves as a potential well. When light is radiated on the photoconductive layer, a large number of photocarriers are generated. The photocarriers having one polarity pass through the barrier by way of a tuneling effect, and propagate in the photoconductive layer.
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Gottfried H. Dohler, Scientific American, "Solid-State Superlattices", vol. 249, No. 5, Nov. 1983, pp. 144 -151.
Ikezue Tatsuya
Yoshizawa Shuji
Kabushiki Kaisha Toshiba
Martin Roland E.
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