Amorphous silicon photovoltaic devices and method of making same
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United States of America Patent
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Jun 5, 2001
Grant Date -
N/A
app pub date -
Mar 16, 2000
filing date -
Jun 18, 1997
priority date (Note) -
Expired
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Abstract
A process for producing a thin film semiconductor solar cell, said solar cell at least comprising: a p-type layer, and an n-type layer, which are deposited on carrier material, wherein the composition of the p-type layer, especially the optical band gap and/or the specific conductivity, and/or the composition of the n-type layer, especially the optical band gap and/or the specific conductivity thereof, are varied on a continuous way in time and/or space, by controlling the composition and/or flow of predetermined gases at the location where the respective semiconductor layer is formed.
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