Thin film polycrystalline silicon solar cells. Quarterly technical progress report No. 2, 1 January 1980-31 March 1980
During this second quarter of the program, data on the effects of trace amounts (ppM level) of oxygen on the MoSi/sub 2/ substrate separation layer have been refined. Analysis of the composit substrate process has indicated that its complexity and expense are too great for practical development; as a result of this, and continued success with Mo substrates, efforts on composite substrates have been discontinued. By extensive operation of the semicontinuous plasma deposition system, operational characteristics have been further defined, permitting requirements for designing a truly continuous microcrystalline silicon film deposition system to be determined. Gas chromatography has been used to characterize the silicon deposition process using the silicon bearing gases SiCl/sub 4/, SiHCl/sub 3/, and SiH/sub 2/Cl/sub 2/; in all cases, deposition efficiency was found to be higher when using plasma than with conventional CVD. Solar cell fabrication and evaluation efforts have indicated that silicon films separated from Molybdenum substrates can yield cells up to 12.8% efficiency under AM1 illumination, and with average efficiencies above 11%.
- Research Organization:
- Motorola, Inc., Phoenix, AZ (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 5416639
- Report Number(s):
- DOE/CH/00178-T1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thin film polycrystalline silicon solar cells. Quarterly technical progress report No. 3, 1 April 1980-30 June 1980
Exploratory development of thin film polycrystallline silicon photovoltaic devices. Production of self-supporting microcrystalline silicon films. Topical report No. 1
Related Subjects
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
CHROMATOGRAPHY
CRYOGENIC FLUIDS
CRYSTAL STRUCTURE
CRYSTALS
DEPOSITION
DIRECT ENERGY CONVERTERS
ELEMENTS
EQUIPMENT
FABRICATION
FLUIDS
GAS CHROMATOGRAPHY
HEATING
LASER-RADIATION HEATING
METALS
MICROSTRUCTURE
MOLYBDENUM
MOLYBDENUM COMPOUNDS
MOLYBDENUM SILICATES
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PLASMA ARC SPRAYING
PLASMA HEATING
POLYCRYSTALS
RECRYSTALLIZATION
REFRACTORY METALS
SEMIMETALS
SEPARATION PROCESSES
SILICATES
SILICON
SILICON COMPOUNDS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SPRAY COATING
SUBSTRATES
SURFACE COATING
TRACE AMOUNTS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS