Photoactive pyrite layer and process for making and using same

Details Photoactive pyrite layer and process for making and using same Photoactive pyrite layer and process for making and using same

1985-07-24

1987-03-10

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

252 623R, 252 623V, 2525011, 252519, 423561R, 423565, 20412975, 204130, 204140, 204280, 204290R, 204 561, 429111, 136255, H01L 3104, H01M 636

Patent

active

046492275

ABSTRACT:
Photoactive pyrite layers, whose preparation and use represent a commercially highly interesting alternative to materials hitherto in common use. The semiconductor material chiefly used until now, e.g. for solar cells, is silicon. However, its costs of manufacture are too high to allow solar cells to be made at favorable cost. The significance of the disclosure and development of pyrite as a semiconductor material, especially for solar cells, lies in the fact that it is plentifully occurring and cheap, as well as environmentally compatible. Pyrite (iron pyrites, FeS.sub.2) can be used as a photoactive material in solar cells and in optoelectronic components. It is possible to use both naturally occurring pyrite, after a material treatment to improve the photosensitivity, as well as synthetically produced, single-crystal and polycrystalline pyrite.

REFERENCES:
patent: 4137096 (1979-01-01), Maier
patent: 4242374 (1980-12-01), Sansregret
patent: 4386142 (1983-05-01), Hodes et al.
R. C. Job et al, Final Report COO-4546-6, "An Improved Fe.sub.2 O.sub.3 Photoelectrochemical Cell", Oct. 1978, DOE Contract EG-77-S-02-4546.
W. Jaegermann et al, J. Appl. Electrochem. vol. 13, pp. 743-750 (1983).
Chem. Abstr., vol. 91, 201139e (1979).
H. M. Kuhne et al, J. Electrochem. Soc., vol. 130, pp. 1448-1449 (1983).

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