Research and development of low cost processes for integrated solar arrays. Final report, April 15, 1974--January 14, 1976
Results of a program to study process routes leading to a low cost large area integrated silicon solar array manufacture for terrestrial applications are reported. Potential processes for the production of solar-grade silicon are evaluated from thermodynamic, economic, and technical feasibility points of view. Upgrading of the present arc-furnace process is found most favorable. Experimental studies of the Si/SiF/sub 4/ transport and purification process show considerable impurity removal and reasonable transport rates. Silicon deformation experiments indicate production of silicon sheet by rolling at 1350/sup 0/C is feasible. Significant recrystallization by strain-anneal technique has been observed. Experimental recrystallization studies using an electron beam line source are discussed. A maximum recrystallization velocity of approximately 9 m/hr is calculated for silicon sheet. A comparative process rating technique based on detailed cost analysis is presented.
- Research Organization:
- Univ. of Pennsylvania, Philadelphia, PA (United States); Dow Corning Corp., Hemlock, MI (USA)
- DOE Contract Number:
- E(11-1)-2721
- OSTI ID:
- 7322549
- Report Number(s):
- COO-2721-76/1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SILICON
COST
IMPURITIES
SILICON SOLAR CELLS
PRODUCTION
SOLAR CELL ARRAYS
FABRICATION
DIRECT ENERGY CONVERTERS
ELEMENTS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHOTOVOLTAIC POWER PLANTS
POWER PLANTS
SEMIMETALS
SOLAR CELLS
SOLAR POWER PLANTS
140501* - Solar Energy Conversion- Photovoltaic Conversion