Cadmium sulfide/copper sulfide heterojunction cell research. Technical progress report, September 1-November 30, 1979
Several all sputter deposited Cu/sub 2/S/CdS cells have been prepared to date with J/sub SC/ approx. = 3 mA/cm/sup 2/ under simulated AM1 illumination. The best AM1 conversion efficiency obtained is 0.6%. This is shown to be typical of sputtered CdS in Cu/sub 2/S/CdS cells investigated to date. The sputtered Cu/sub 2/S appears to be satisfactory for solar cell applications. Presented evidence indicates that the poor conversion efficiency is due to a low-junction electric field intensity on the CdS side of the heterojunction. A multilayer CdS structure has been developed which may allow the tailoring of the junction electric field intensity to a selected high value to obtain high-junction collection efficiency. Other areas of cell development advances included: (1) determination of effect of Cu cones in Cu/sub 2/S on Cu/sub 2/S/CdS cell performance; (2) solution of CdS pinhole problem; and (3) open circuit voltage improvement by heat treatment.
- Research Organization:
- Lockheed Missiles and Space Co., Palo Alto, CA (USA). Research Labs.
- DOE Contract Number:
- EG-77-C-01-4042
- OSTI ID:
- 5227865
- Report Number(s):
- DSE-8033-1/3; LMSC-D-682102
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CADMIUM COMPOUNDS
CADMIUM SULFIDE SOLAR CELLS
CADMIUM SULFIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER SULFIDES
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
EQUIPMENT
FABRICATION
HEAT TREATMENTS
INORGANIC PHOSPHORS
PERFORMANCE
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR CELLS
SOLAR EQUIPMENT
SPUTTERING
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CADMIUM COMPOUNDS
CADMIUM SULFIDE SOLAR CELLS
CADMIUM SULFIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER SULFIDES
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
EQUIPMENT
FABRICATION
HEAT TREATMENTS
INORGANIC PHOSPHORS
PERFORMANCE
PHOSPHORS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR CELLS
SOLAR EQUIPMENT
SPUTTERING
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS