Novel duplex vapor-electrochemical method for silicon solar cells. Quarterly progress report Nos. 2 and 3, May 1, 1976--October 31, 1976

Technical Report · Mon Nov 01 00:00:00 EST 1976

DOI:https://doi.org/10.2172/7307173· OSTI ID:7307173

Kapur, V. K.; Nanis, L.

Silicon can be produced by the reduction of SiF/sub 4/ gas with sodium in a reaction that initiates at temperatures lower than 175/sup 0/C. The kinetics of the reaction can be affected by varying the partial pressure of SiF/sub 4/ gas. Emission spectrographic analysis of product silicon shows the major impurity to be sodium; but the metallic impurities that are known to degrade solar cell efficiency, such as Ti, V, Zr, and Cr, were not detected and must be less than 10 ppM.

• Research Organization: Stanford Research Inst., Menlo Park, CA (USA)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA); JET PROPULSION LABORATORY
• DOE Contract Number: NAS-7-100-954471
• OSTI ID: 7307173
• Report Number(s): ERDA/JPL/954471-76/2; ERDA/JPL/954471-76/3
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SILICON
CHEMICAL PREPARATION
IMPURITIES
SILICON SOLAR CELLS
EFFICIENCY
SILANES
SODIUM
ALKALI METALS
DIRECT ENERGY CONVERTERS
ELEMENTS
HYDRIDES
HYDROGEN COMPOUNDS
METALS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SEMIMETALS
SILICON COMPOUNDS
SOLAR CELLS
SYNTHESIS
140501* - Solar Energy Conversion- Photovoltaic Conversion