NASA NTRS · 19800062529
Progress on the Dow Corning process for solar-grade silicon
Abstract
The Dow Corning approach to increasing the resistivity of solar-grade silicon from about 0.04 ohm-cm (40 ppma B) to greater than 0.1 ohm-cm (10 ppma B) involves the use of high-purity raw materials carbothermically reduced in a specially designed electric arc furnace. Final purification occurs during Czochralski crystal growth of a polycrystalline ingot. This small-scale purification technology has resulted in silicon that has been fabricated into solar cells with a maximum AM1 conversion efficiency of 13.4%.
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Hunt, L. P., Dosaj, V. D.. 1979-01-01. Progress on the Dow Corning process for solar-grade silicon. https://ntrs.nasa.gov/citations/19800062529
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