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Proceedings Paper

Measurement and characterization of triple junction solar cells using a close matched multizone solar simulator
Author(s): Jeffrey H. Warner; Robert J. Walters; Scott R. Messenger; Justin R. Lorentzen; Geoffrey P. Summers; Hector L. Cotal; Nassar H. Karam
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Paper Abstract

The photovoltaic characterization of triple-junction InGaP2/GaAs/Ge solar cells is presented. Measurements made using a single light source solar simulator are compared with other measurements made using a multi-light source solar simulator that provides a close match to the air mass zero (AM0) solar spectrum. The output spectrum of the solar simulators has been measured, and two methods for calibrating the simulator output intensity haven been employed. The spectral response of the solar cells has been characterized through quantum efficiency measurements. These data are analyzed to determine the effect of the simulator spectrum on the measured photovoltaic response, and in particular, areas where spectral mismatch between the simulator and AM0 can lead to inaccurate performance predictions are highlighted. In addition, the effects of the different calibration techniques on the measured data are studied. Exploiting the capabilities of the multi-source, close matched simulator, the response of each of the three sub-junctions are studied individually, and the interplay between the spectral response of the sub-junctions and the incident spectrum is investigated.

Paper Details

Date Published: 3 November 2004
PDF: 11 pages
Proc. SPIE 5520, Organic Photovoltaics V, (3 November 2004); doi: 10.1117/12.559734
Show Author Affiliations
Jeffrey H. Warner, Naval Research Lab. (United States)
Univ. of Maryland/Baltimore County (United States)
Robert J. Walters, Naval Research Lab. (United States)
Scott R. Messenger, SFA, Inc. (United States)
Justin R. Lorentzen, SFA, Inc. (United States)
Geoffrey P. Summers, Naval Research Lab. (United States)
Univ. of Maryland/Baltimore County (United States)
Hector L. Cotal, Spectrolab, Inc. (United States)
Nassar H. Karam, Spectrolab, Inc. (United States)


Published in SPIE Proceedings Vol. 5520:
Organic Photovoltaics V
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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