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Optimization of solar cell contacts by system cost-per-watt minimizationNew, and considerably altered, optimum dimensions for solar-cell metallization patterns are found using the recently developed procedure whose optimization criterion is the minimum cost-per-watt effect on the entire photovoltaic system. It is also found that the optimum shadow fraction by the fine grid is independent of metal cost and resistivity as well as cell size. The optimum thickness of the fine grid metal depends on all these factors, and in familiar cases it should be appreciably greater than that found by less complete analyses. The optimum bus bar thickness is much greater than those generally used. The cost-per-watt penalty due to the need for increased amounts of metal per unit area on larger cells is determined quantitatively and thereby provides a criterion for the minimum benefits that must be obtained in other process steps to make larger cells cost effective.
Document ID
19780039728
Document Type
Reprint (Version printed in journal)
Authors
Redfield, D. (RCA Laboratories Princeton, N.J., United States)
Date Acquired
August 9, 2013
Publication Date
December 1, 1977
Publication Information
Publication: RCA Review
Volume: 38
Subject Category
ENERGY PRODUCTION AND CONVERSION
Funding Number(s)
CONTRACT_GRANT: JPL-954352
Distribution Limits
Public
Copyright
Other