Kesterites and Chalcopyrites: A Comparison of Close Cousins; Preprint
Chalcopyrite solar cells based on CuInSe2 and associated alloys have demonstrated high efficiencies, with current annual shipments in the hundreds of megawatts (MW) range and increasing. Largely due to concern over possible indium (In) scarcity, a related set of materials, the kesterites, which comprise Cu2ZnSnS4 and associated alloys, has received increasing attention. Similarities and differences between kesterites and chalcopyrites are discussed as drawn from theory, depositions, and materials characterization. In particular, we discuss predictions from density functional theory, results from vacuum co-evaporation, and characterization via x-ray diffraction, scanning electron microscopy, electron beam-induced current, quantum efficiency, secondary ion mass spectroscopy, and luminescence.
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- Conference: Presented at the 2011 Materials Research Society Spring Meeting, 25-29 April 2011, San Francisco, California
- Research Org:
- National Renewable Energy Laboratory (NREL), Golden, CO.
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- Country of Publication:
- United States
- 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; ALLOYS; CHALCOPYRITE; ELECTRONS; FUNCTIONALS; INDIUM; LUMINESCENCE; MASS SPECTROSCOPY; QUANTUM EFFICIENCY; SCANNING ELECTRON MICROSCOPY; SOLAR CELLS; X-RAY DIFFRACTION CHALCOPYRITE; KESTERITE; CIGS; CZTS; SOLAR CELLS; Solar Energy - Photovoltaics
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