Method of manufacturing a cadmium sulphide photo-voltaic device
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United States of America Patent
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Sep 13, 1983
Grant Date -
N/A
app pub date -
Dec 9, 1981
filing date -
Dec 12, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to the manufacture of a cadmium sulphide photo-voltaic device. A substrate such as a glass is coated with successive layers which are made, in order, of tin oxide, cadmium sulphide, cuprous sulphide and copper to build up a photo-voltaic junction. In order to achieve a fast deposition rate of the cadmium sulphide while achieving a well ordered crystal structure the cadmium sulphide layer is deposited in two stages, the first involving spraying of a weak precursor solution and the second a substantially more concentrated solution to achieve at least a five times increase in the deposition rate. The invention also describes improved techniques for spraying and reducing the effects of the resistivity of the tin oxide first electrode.
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