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Silane pyrolysis in a free-space reactorThe Union Carbide process for producing silicon for photovoltaic applications proceeds via high purity silane as an intermediate. Decomposition of silane is accomplished in a freespace reactor which utilizes recirculating product hydrogen and silicon to transfer energy from a heated wall to an entering silane jet. Reaction occurs away from the wall, minimizing problems with wall deposition and contamination. A series of long duration and throughput tests has proven the feasibility of this concept. High purity powder can be produced at flows up to 4.5 kg/hr (10 lb/hr) in a 0.2 m (8 inch) diameter reactor with better than 99.99% conversion efficiency. This work is funded by DOE under JPL's Low Cost Solar Array (LSA) program.
Document ID
19820061482
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Lay, J. R.
(Union Carbide Corp. Tonawanda, NY, United States)
Iya, S. K.
(Union Carbide Corp. Tonawanda, NY, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Engineering (General)
Meeting Information
Meeting: Photovoltaic Specialists Conference
Location: Kissimmee, FL
Start Date: May 12, 1981
End Date: May 15, 1981
Accession Number
82A45017
Funding Number(s)
CONTRACT_GRANT: JPL-954334
Distribution Limits
Public
Copyright
Other

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