Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 76, Issue 3, Pages 331-337Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0927-0248(02)00285-4
Keywords
electrodeposition; Cu(In, Ga)Se-2; photovoltaic cell; buffer solution
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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. (C) 2002 Elsevier Science B.V. All rights reserved.
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