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Proceedings Paper

Thermal test and analysis of concentrator solar cells
Author(s): Min Cui; Nuofu Chen; Jinliang Wu; Lei Liu; Peng Wang; Yanshuo Wang; Yiming Bai
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Paper Abstract

Under high concentration the temperature of photovoltaic solar cells is very high. It is well known that the efficiency and performance of photovoltaic solar cells decrease with the increase of temperature. So cooling is indispensable for a concentrator photovoltaic solar cell at high concentration. Usually passive cooling is widely considered in a concentrator system. However, the thermal conduction principle of concentrator solar cells under passive cooling is seldom reported. In this paper, GaInP/GaAs/Ge triple junction solar cells were fabricated using metal organic chemical vapor deposition technique. The thermal conductivity performance of monolithic concentrator GaInP/GaAs/Ge cascade solar cells under 400X concentration with a heat sink were studied by testing the surface and backside temperatures of solar cells. The tested result shows that temperature difference between both sides of the solar cells is about 1K. A theoretical model of the thermal conductivity and thermal resistance of the GaInP/GaAs/Ge triple junction solar cells was built, and the calculation temperature difference between both sides of the solar cells is about 0.724K which is consistent with the result of practical test. Combining the theoretical model and the practical testing with the upper surface temperature of tested 310K, the temperature distribution of the solar cells was researched.

Paper Details

Date Published: 4 January 2008
PDF: 6 pages
Proc. SPIE 6841, Solid State Lighting and Solar Energy Technologies, 684117 (4 January 2008); doi: 10.1117/12.755323
Show Author Affiliations
Min Cui, Institute of Semiconductors (China)
Nuofu Chen, Institute of Semiconductors (China)
Institute of Mechanics (China)
Jinliang Wu, Institute of Semiconductors (China)
Lei Liu, Institute of Semiconductors (China)
Peng Wang, Institute of Semiconductors (China)
Yanshuo Wang, Institute of Semiconductors (China)
Yiming Bai, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 6841:
Solid State Lighting and Solar Energy Technologies
Jinmin Li; Yuwen Zhao; Nuofu Chen; Ling Wu; Yubo Fan; Vladimir M. Andreev; Yong-Hang Zhang; Jai Singh; Michael E. Coltrin, Editor(s)

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