Tandem thin-film solar cell using Cd/sub y/Zn/sub 1-y/Te as the wide bandgap component. Annual subcontract report, 1 April 1985-1 April 1986
The objective of this research program was to develop CdZnTe as the wide-bandgap component for all-thin-film, polycrystalline tandem solar cell. Single-crystal and polycrystalline CdZnTe films containing about 0.20 mole fraction of ZnTe corresponging to a bandgap of 1.65 eV were deposited by congruent evaporation in uhv on sapphire and ITO/glass substrates. CdZnTe and single-crystal CdTe films, semi-insulating as grown films, were annealed to p-type in Te overpressures. The Hall mobilities and carrier concentration ranges for the films were respectively 20 to 75 cm/sup 2//V-s and 5 x 10/sup 4/ - 10/sup 16/ cm/sup -3/. The use of Hg(Cd,Zn) Te alloys reduced contact resistances as low as 0.1 ohm-cm/sup 2/. Indium Schottky barriers of 0.9 eV were observed on CdZnTe single-crystal thin films.
- Research Organization:
- Ford Aerospace and Communications Corp., Newport Beach, CA (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 5557075
- Report Number(s):
- SERI/STR-211-2972; ON: DE86010720
- Country of Publication:
- United States
- Language:
- English
Similar Records
High efficiency cadmium telluride and zinc telluride based thin-film solar cells. Annual subcontract report, 1 March 1990--28 February 1992
High Efficiency Cadmium Telluride and Zinc Telluride Based Thin-Film Solar Cells, Annual Subcontract Report, 1 March 1990 - 28 Februawry 1992
Related Subjects
CADMIUM TELLURIDE SOLAR CELLS
FABRICATION
TESTING
ANNEALING
CARRIER MOBILITY
CASCADE SOLAR CELLS
CRYSTAL GROWTH
ELECTRIC CONTACTS
THIN FILMS
ZINC TELLURIDES
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTRICAL EQUIPMENT
EQUIPMENT
FILMS
HEAT TREATMENTS
MOBILITY
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
SOLAR EQUIPMENT
TELLURIDES
TELLURIUM COMPOUNDS
ZINC COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion