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

H - Electricity

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31/136

H01L 31/04 (2006.01) C30B 25/00 (2006.01) H01L 31/032 (2006.01)

Patent

CA 1265922

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 signi- ficance 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 pyrite, FeS2) 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.

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