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Effect of thickness on silicon solar cell efficiencyA computer-aided-design study on the dependence of the efficiency peak of a back-surface field solar cell on the concentrations of the recombination and dopant impurities is presented. The illuminated current-voltage characteristics of more than 100 cell designs are obtained using the transmission line circuit model to numerically solve the Shockley equations. Using an AM 1 efficiency of 17% as a target value, it is shown that the efficiency versus thickness dependence has a broad maximum which varies by less than 1% over more than a three-to-one range of cell thicknesses from 30 to 100 microns. An optically reflecting back surface will give only a slight improvement of AM 1 efficiency, about 0.7%, in this thickness range. Attention is given to the dependence of the efficiency on patchiness across the back-surface field low-high junction in thin cells.
Document ID
19820049161
Document Type
Reprint (Version printed in journal)
Authors
Sah, C.-T. (Illinois, University Urbana, IL, United States)
Yamakawa, K. A. (Illinois Univ. Urbana, IL, United States)
Lutwack, R. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 10, 2013
Publication Date
May 1, 1982
Publication Information
Publication: IEEE Transactions on Electron Devices
Volume: ED-29
Subject Category
ENERGY PRODUCTION AND CONVERSION
Distribution Limits
Public
Copyright
Other