Recent investigations of metal oxide/CdTe heterojunction solar cells
Recent investigations of the properties of ZnO and indium--tin oxide (ITO) films both on glass and as components of single crystal p-CdTe based heterojunction solar cells are described. It was shown that ZnO films deposited by rf sputtering or spray pyrolysis can be brought within the desired conductivity range for solar cell performance. First generation n-ZnO/p-CdTe solar cells show high values of J/sub sc/ = 19 mA/cm/sup 2/ and solar efficiency n/sub s/ = 4.6% (AM2 simulation). Heterojunctions of n-ITO/p-CdTe prepared by rf sputtering give V/sub oc/ = 0.82 V, J/sub sc/ = 14.5 mA/cm/sup 2/, and n/sub s/ = 8% but properties are very sensitive to preparation variables. Preliminary structural studies have been made on the ITO films in situ on CdTe substrates to elucidate this sensitivity. The results of heat-treatments on both ZnO and ITO cells are also discussed.
- Research Organization:
- Stanford Univ., CA (USA). Dept. of Materials Science and Engineering
- DOE Contract Number:
- EY-76-S-03-0326-047
- OSTI ID:
- 6241934
- Report Number(s):
- CONF-780619-25
- Resource Relation:
- Conference: IEEE photovoltaic specialists conference, Washington, DC, USA, 5 Jun 1978
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CADMIUM TELLURIDE SOLAR CELLS
FABRICATION
SURFACE COATING
EFFICIENCY
FILMS
HEAT TREATMENTS
INDIUM OXIDES
MECHANICAL PROPERTIES
PERFORMANCE
PYROLYSIS
SPRAY COATING
SPRAYED COATINGS
SPUTTERING
SUBSTRATES
TIN OXIDES
ZINC OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COATINGS
DECOMPOSITION
DEPOSITION
DIRECT ENERGY CONVERTERS
INDIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
THERMOCHEMICAL PROCESSES
TIN COMPOUNDS
ZINC COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion