Method of manufacture of chalcogenide-based photovoltaic cells
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United States of America Patent
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May 31, 2016
Grant Date -
Nov 17, 2011
app pub date -
Apr 28, 2011
filing date -
Apr 30, 2010
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Abstract
The invention is a method of forming a cadmium sulfide based buffer on a copper chalcogenide based absorber in making a photovoltaic cell. The buffer is sputtered at relatively high pressures. The resulting cell has good efficiency and according to one embodiment is characterized by a narrow interface between the absorber and buffer layers. The buffer is further characterized according to a second embodiment by a relatively high oxygen content.
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