Solar cell with chalcopyrite absorber layer
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United States of America Patent
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May 6, 1997
Grant Date -
N/A
app pub date -
Dec 1, 1995
filing date -
Dec 1, 1994
priority date (Note) -
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Abstract
A substrate-independent manufacturing method for a solar cell with chalcopyrite absorber layer (4, 5) is proposed wherein a desired alkali content is obtained in the finished absorber layer by dosed addition of Na, K, or Li during the manufacturing process. An additional drive-in of alkali ions from a potentially alkali-containing substrate (1) is prevented by providing a diffusion barrier layer (2) between substrate and absorber layer.
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