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Theoretical results on the tandem junction solar cell based on its Ebers-Moll transistor modelA one-dimensional theoretical model of the tandem junction solar cell (TJC) with base resistivity greater than about 1 ohm-cm and under low level injection has been derived. This model extends a previously published conceptual model which treats the TJC as an npn transistor. The model gives theoretical expressions for each of the Ebers-Moll type currents of the illuminated TJC and allows for the calculation of the spectral response, I(sc), V(oc), FF and eta under variation of one or more of the geometrical and material parameters and 1MeV electron fluence. Results of computer calculations based on this model are presented and discussed. These results indicate that for space applications, both a high beginning of life efficiency, greater than 15% AM0, and a high radiation tolerance can be achieved only with thin (less than 50 microns) TJC's with high base resistivity (greater than 10 ohm-cm).
Document ID
19810042695
Document Type
Conference Proceedings
Authors
Goradia, C. (Cleveland State Univ. OH, United States)
Vaughn, J. (Cleveland State University Cleveland, Ohio, United States)
Baraona, C. R. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
ENERGY PRODUCTION AND CONVERSION
Meeting Information
Photovoltaic Specialists Conference(San Diego, CA)
Distribution Limits
Public
Copyright
Other