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8 November 2018 AM0 performance measurement of triple-junction GaInP/InGaAs/Ge solar cells by a compound light source
Haifeng Meng, Limin Xiong, Junchao Zhang, Yingwei He, Bifeng Zhang, Chuan Cai
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Proceedings Volume 10819, Optical Metrology and Inspection for Industrial Applications V; 108190L (2018) https://doi.org/10.1117/12.2502513
Event: SPIE/COS Photonics Asia, 2018, Beijing, China
Abstract
Because of their high efficiency and power weight ratio, triple-junction GaInP/InGaAs/Ge solar cells have become the main energy source for space on-orbit applications. Calibration of space solar cells under AM0 conditions is extremely important for satellite power system design, and accurate prediction of them is critical to solar array sizing. However, it’s not easy to conduct accurate measurement for multi-junction solar cells, especially in laboratory on earth. In this paper, by employing a highly AM0 spectrum-matched light source, which combined a Xenon lamp and a Halogen lamp with special filters, a method to measure the AM0 performance for triple-junction GaInP/InGaAs/Ge solar cells will be presented. The calibrated values of reference solar cells, including two component solar cells, were come from a national standard facility based on DSR (Differential Spectral Responsivity) method. After calibrating the compound light source by using the reference solar cells, key parameters of AM0 performance of triple-junction GaInP/InGaAs/Ge solar cells would be measured out, such as short-circuit current, open-circuit voltage and maximum power, etc. Spectral mismatch and other main influencing factors are also considered. It will provide a reliable route for multi-junction space solar cells’ photoelectric property measurement in laboratories on earth.
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Haifeng Meng, Limin Xiong, Junchao Zhang, Yingwei He, Bifeng Zhang, and Chuan Cai "AM0 performance measurement of triple-junction GaInP/InGaAs/Ge solar cells by a compound light source", Proc. SPIE 10819, Optical Metrology and Inspection for Industrial Applications V, 108190L (8 November 2018); https://doi.org/10.1117/12.2502513
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KEYWORDS
Solar cells
Calibration
Xenon
Halogens
Multijunction solar cells
Standards development
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