Gallium arsenide thin films on tungsten/graphite substrates: Phase II. Final report, September 1, 1977 to November 30, 1978
The objectives of this contract are to investigate thin films of gallium arsenide on low cost substrates and to prepare solar cells with an AM1 efficiency of 6% or higher by August 1978. Efforts during this year have been directed to (1) the deposition and characterization of gallium arsenide films on tungsten/graphite and graphite substrates, including the initial stage of the deposition process, (2) the effects of the addition of hydrogen chloride to the reactant mixture on the microstructure of gallium arsenide, (3) the deposition of titanium dioxide films as antireflection coatings, (4) the fabrication and characterization of gallium arsenide solar cells on tungsten/graphite and graphite substrates, and (5) the investigation of the temperature coefficients and stabilities of thin film gallium arsenide MOS solar cells. Results are reported. (WHK)
- Research Organization:
- Southern Methodist Univ., Dallas, TX (USA)
- OSTI ID:
- 5757878
- Report Number(s):
- SAN-1284-T2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gallium arsenide thin films on tungsten/graphite substrates: Phase II. Quarterly project report No. 3, March 1--May 31, 1978
Gallium arsenide thin films on tungsten/graphite substrates. Phase II. Quarterly project report, March 1, 1978-May 31, 1978
Related Subjects
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
ALLOYS
ANTIREFLECTION COATINGS
ARSENIC COMPOUNDS
ARSENIDES
CARBON
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COATINGS
COST
CRYSTAL STRUCTURE
DEPOSITION
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
FABRICATION
GALLIUM ARSENIDE SOLAR CELLS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GRAPHITE
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
MICROSTRUCTURE
NONMETALS
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
REFRACTORY METALS
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRAL RESPONSE
STABILITY
STRESSES
SUBSTRATES
SULFUR ADDITIONS
SURFACE COATING
THERMAL STRESSES
TRANSITION ELEMENTS
TUNGSTEN