Development of stable high-efficiency polycrystalline thin film solar cells based on CuInSe/sub 2/
CuInSe/sub 2//CdS cells have been made with a variety of back contacts and with single and double layers of CuInSe/sub 2/. An improvement in fill factor and open circuit voltage was achieved by using a Mo/Pt back contact. Subsequently it was shown that the same performance could be obtained by lowering the substrate temperature during the CuInSe/sub 2/ deposition. Cells of about 8% efficiency have been made and with short circuit currents of up to 40 mA/cm/sup 2/. CdTe films have been grown with and without intentional doping to yield high resistivity p-type material in the as deposited conditions. Subsequent air heat treatments and annealing in a Te overpressure have been successfully used to lower the resistivity by one or two orders of magnitude. Material characterization studies on the CdTe films are reported.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 6928067
- Report Number(s):
- SERI/STR-211-2232; ON: DE84004484
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stable high-efficiency CuInSe/sub 2/-based polycrystalline thin-film tandem solar cells. Semiannual report, March 16-September 15, 1984
Stable, high-efficiency, CuInSe/sub 2/-based polycrystalline thin-film tandem solar cells. Semiannual subcontract report, 16 March 1985-15 September 1985
Related Subjects
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CADMIUM COMPOUNDS
CADMIUM TELLURIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER SELENIDE SOLAR CELLS
CRYSTAL GROWTH
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
DIRECT ENERGY CONVERTERS
EQUIPMENT
FILMS
GRAIN SIZE
INDIUM SELENIDE SOLAR CELLS
MICROSTRUCTURE
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
POLYCRYSTALS
SCATTERING
SIZE
SOLAR CELLS
SOLAR EQUIPMENT
TELLURIDES
TELLURIUM COMPOUNDS
TEMPERATURE EFFECTS
THIN FILMS
X-RAY DIFFRACTION