Photoelectric element, picture-reading device including the same, and process for production thereof
AssigneeRicoh Company, Ltd.
InventorsKouji Mori, Hideo Segawa, Kouichi Sakurai, Masanori Itagaki
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Abstract
A photoelectric device comprises a substrate, a counter electrode, and a photoelectric element interposed therebetween in deposited state and comprising, in successively deposited state, a transparent electroconductive film, a CdS film, a CdTe film, and an As.sub.2 Se.sub.3 film. This device is produced by successively depositing the films while the substrate is maintained at respective specific temperatures, the CdS film and the CdTe film being respectively heat treated at respective specific temperatures and in specific atmospheres after deposition.
Claims17
A photoelectric element comprising:
- (I) a transparent electroconductive film;
- (II) a first film of II-VI compound having a relatively large band gap;
- (III) a second film of II-VI compound having a band gap smaller than that of the first film;
- and (IV) an amorphous chalcogenide film, said films (I) through (IV) being successively deposited in the order named.
Dependencies are inferred from the claim text.