High efficiency GaAs/CuInSe/sub 2/ tandem junction solar cells

Conference Record of the Twentieth IEEE Photovoltaic Specialists Conference Pub Date : 1988-01-01 DOI:10.1109/PVSC.1988.105743

N. Kim, R. Burgess, B. Stanbery, R. Mickelsen, J. Avery, R. McClelland, B. King, M. Boden, R. Gale

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引用次数: 8

Abstract

High-efficiency, mechanically stacked tandem junction solar cells based on a double-heterostructure GaAs single-crystal thin-film top cell and a polycrystalline CuInSe/sub 2/ (CIS) thin-film bottom cell were developed to meet the power needs projected for future spacecraft. The best performance of these tandem cells achieved so far is 21.3% AM0, one sun, for a 1 cm/sup 2/ four-terminal device at 28 degrees C. A GaAs subcell efficiency of 18.8% and a CuInSe/sub 2/ subcell efficiency of 2.5% were measured for this device. Top cell efficiency up to 19.5% and lower cell efficiency up to 2.83% were measured for other tandem cells. A 3.0% CIS cell was achieved using a GaAs filter with a glycerol optical matching medium. This demonstrated efficiency provides for specific powers up to 620 W/kg when 50 mu m thick substrate and cover glasses are incorporated. Favorable results were obtained from thermal cycling experiments conducted to evaluate survivability of thin GaAs films in adhesive/glass sandwich structures.<>

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高效GaAs/CuInSe/ sub2 /串联结太阳能电池

基于双异质结构GaAs单晶薄膜顶电池和多晶CuInSe/sub 2/ (CIS)薄膜底电池，研制了高效、机械堆叠的串联结太阳能电池，以满足未来航天器的电力需求。到目前为止，这些串联电池的最佳性能是21.3%的AM0，一个太阳，1 cm/sup 2/四端器件，在28℃下，该器件的GaAs亚电池效率为18.8%，CuInSe/sub 2/亚电池效率为2.5%。其他串联电池的最高效率可达19.5%，较低效率可达2.83%。使用GaAs滤光片和甘油光学匹配介质获得3.0%的CIS细胞。当结合50 μ m厚的基板和覆盖玻璃时，该效率可提供高达620 W/kg的比功率。通过热循环实验来评估GaAs薄膜在胶粘剂/玻璃夹层结构中的生存能力，获得了良好的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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