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Polycrystalline silicon availability for photovoltaic and semiconductor industriesMarkets, applications, and production techniques for Siemens process-produced polycrystalline silicon are surveyed. It is noted that as of 1982 a total of six Si materials suppliers were servicing a worldwide total of over 1000 manufacturers of Si-based devices. Besides solar cells, the Si wafers are employed for thyristors, rectifiers, bipolar power transistors, and discrete components for control systems. An estimated 3890 metric tons of semiconductor-grade polycrystalline Si will be used in 1982, and 6200 metric tons by 1985. Although the amount is expected to nearly triple between 1982-89, research is being carried out on the formation of thin films and ribbons for solar cells, thereby eliminating the waste produced in slicing Czolchralski-grown crystals. The free-world Si production in 1982 is estimated to be 3050 metric tons. Various new technologies for the formation of polycrystalline Si at lower costs and with less waste are considered. New entries into the industrial Si formation field are projected to produce a 2000 metric ton excess by 1988.
Document ID
19830032430
Document Type
Reprint (Version printed in journal)
Authors
Ferber, R. R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Costogue, E. N. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Pellin, R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Publication Information
Publication: International Journal of Solar Energy
Volume: 1
Issue: 2, 19
Subject Category
CHEMISTRY AND MATERIALS (GENERAL)
Distribution Limits
Public
Copyright
Other