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Continuous Czochralski Growth. Silicon Sheet Growth Development of the Large Area Silicon Sheet Task of the Low Cost Silicon Solar Array ProjectDuring the reporting period, a successful 100 kilogram run was performed. Six ingots of 13 cm diameter were grown, ranging in size from 15.5 kg to 17.7 kg. Melt replenishment methods included both poly rod and lump feed material. Samples from each ingot were prepared for solar cell fabrication and analyses, impurity analysis, and structural studies. The furnace was converted to the 14-inch hot zone and preliminary heat runs were performed. Two sucessful runs were demonstrated, by growing 25 kg ingots from 30 kg melts. Also, a 100 kg run was attempted, utilizing the 14 inch crucible hot zone, but was prematurely terminated due to excessive monoxide which accumulated on the viewports and a seed failure.
Document ID
19790018325
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Merz, F. (Kayex Corp. Rochester, NY, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1979
Subject Category
Energy Production And Conversion
Report/Patent Number
JPL-9950-109
DOE/JPL-954888-79/6
NASA-CR-158730
QPR-6
Accession Number
79N26496
Funding Number(s)
CONTRACT_GRANT: JPL-954888
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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