CuIn1−xGaxSe2-based photovoltaic cells from electrodeposited precursor films |
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Authors: | Raghu N Bhattacharya Arturo M Fernandez |
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Affiliation: | National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401-3393, USA |
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Abstract: | We have developed an electrodeposition bath based on a buffer solution so that the stability of the electrodeposition process is enhanced and no metal oxides or hydroxides precipitate out of solution. The buffer-solution-based bath also deposits more gallium in the precursor films. As-deposited precursors are stoichiometric or slightly Cu-rich CuIn1−xGaxSe2. Only a minimal amount of indium was added to the electrodeposited precursor films by physical vapor deposition to obtain a 9.4%-efficient device. |
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Keywords: | Electrodeposition Cu(In Ga)Se2 Photovoltaic cell Buffer solution |
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