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A program continuation to develop processing procedures for advanced silicon solar cellsShallow junctions, aluminum back surface fields and tantalum pentoxide (Ta205) antireflection coatings coupled with the development of a chromium-palladium-silver contact system, were used to produce a 2 x 4 cm wraparound contact silicon solar cell. One thousand cells were successfully fabricated using batch processing techniques. These cells were 0.020 mm thick, with the majority (800) made from nominal ten ohm-cm silicon and the remainder from nominal 30 ohm-cm material. Unfiltered, these cells delivered a minimum AMO efficiency at 25 C of 11.5 percent and successfully passed all the normal in-process and acceptance tests required for space flight cells.
Document ID
19770008545
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Avery, J. E. (Spectrolab, Inc. Sylmar, CA, United States)
Scott-Monck, J. A. (Spectrolab, Inc. Sylmar, CA, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1976
Subject Category
Energy Production And Conversion
Report/Patent Number
NASA-CR-135114
Accession Number
77N15488
Funding Number(s)
CONTRACT_GRANT: NAS3-17350
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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