期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 90, 期 1, 页码 57-67出版社
ELSEVIER
DOI: 10.1016/j.solmat.2005.01.011
关键词
multijunction solar cell; temperature coefficient; concentration; annual output
The temperature dependences of the electrical characteristics of InGaP/InGaAs/Ge triple-junction solar cells under concentration were evaluated. For these solar cells, conversion efficiency (eta) decreased with increasing temperature, and increased with increasing concentration ratio owing to an increase in open-circuit voltage. The decrease in eta with increasing temperature decreases with increasing concentration ratio. Moreover, the annual output of a concentrator system with a high-efficiency triple-junction cell was estimated utilizing the experimental solar cell's characteristics obtained in this study and field-test meteorological data collected for 1 year at the Nara Institute of Science and Technology, and compared with that of a nonconcentration flat-plate system. (C) 2005 Elsevier B.V. All rights reserved.
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