Thin-film cadmium sulfide/mixed copper ternary heterojunction solar cells. Technical progress report, September 30, 1977-September 30, 1978
The objective of the work reported is to fabricate efficient thin-film photovoltaic cells in which one of the semiconductors is cadmium sulfide and the other is an alloy of two or more copper ternary chalcopyrite semiconductors of the type CuInS/sub 2/, CuInSe/sub 2/, etc. The alloys are chosen to provide perfect lattice matching with CdS. By recourse to pentenary alloys of the type Cu/sub x/Ag/sub 1-x/InS/sub 2//sub z/Se/sub 2//sub (1-z)/ it is possible within certain constraints to adjust energy gap and lattice constant independently. A goal of the program is to identify alloys of this type having perfect lattice matching with respect to CdS and energy gap of approximately 1.5 eV and to fabricate solar cells with this material as one of the constituents. Materials synthesis for use in sputter targets and thin film preparation are discussed. Films were prepared by r-f sputtering, vacuum evaporation, neutral argon beam sputtering, and spray pyrolysis. Also discussed are attendance of meetings, presentations of papers and publications, planned activity for the next period. Contract activities are summarized from the time of initiation. (LEW)
- Research Organization:
- Brown Univ., Providence, RI (USA). Div. of Engineering
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC03-77ET20415
- OSTI ID:
- 6971725
- Report Number(s):
- DOE/ET/20415-4; ON: DE82021085
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CADMIUM SULFIDE SOLAR CELLS
FABRICATION
HETEROJUNCTIONS
CADMIUM SULFIDES
DEPOSITION
COPPER ALLOYS
COPPER SELENIDES
CRYSTAL LATTICES
ENERGY GAP
INDIUM SELENIDES
PYROLYSIS
SPRAY COATING
SPUTTERING
VACUUM EVAPORATION
ALLOYS
CADMIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
CRYSTAL STRUCTURE
DECOMPOSITION
DIRECT ENERGY CONVERTERS
EQUIPMENT
EVAPORATION
INDIUM COMPOUNDS
INORGANIC PHOSPHORS
JUNCTIONS
PHASE TRANSFORMATIONS
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SELENIDES
SELENIUM COMPOUNDS
SEMICONDUCTOR JUNCTIONS
SOLAR CELLS
SOLAR EQUIPMENT
SULFIDES
SULFUR COMPOUNDS
SURFACE COATING
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion