Performance of multi-junction silicon-based thin film solar cells under concentrated sunlight
Performance of multi-junction silicon-based thin film solar cells under concentrated sunlight
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DOI：
10.1109/pvsc.2011.6186033
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发表时间：
2011-06
期刊：
影响因子：
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通讯作者：
S. Kasashima;Ryohei Uzawa;Bancha Janthong;S. Inthisang;T. Krajangsang;P. Sichanugrist;M. Konagai
中科院分区：
文献类型：
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作者：
S. Kasashima;Ryohei Uzawa;Bancha Janthong;S. Inthisang;T. Krajangsang;P. Sichanugrist;M. Konagai
多结硅基薄膜聚光太阳能电池是实现低成本和高效率的理想选择。为了将硅基薄膜太阳能电池应用于聚光光伏，需要揭示硅基薄膜太阳能电池性能和光强的依赖关系。基于这些原因，本研究对几种类型的单结和多结串联太阳能电池进行了计算和实验研究。从模拟和测量结果中，我们观察到双结和三结太阳能电池随着光强的增加而获得高开路电压和大的开路电压对数增量。另一方面，为了在低光照浓度下实现高效率的多结硅基薄膜太阳能电池，需要提高填充系数的下降。
Multi-junction silicon-based thin-film concentrator solar cells are promising candidate to achieve both low-cost and high-efficiency. For the application of silicon-based thin film solar cells to concentrator photovoltaics, it is required to be revealed the light intensity dependence of the performance of silicon-based thin film solar cells. From these reasons, in this study both calculation and experimental studies were conducted with several types of single-junction and multi-junction tandem solar cells. From both simulation and measurement results, we observed that double- and triple-junction solar cells achieve high open-circuit voltage and large logarithmic increment in open-circuit voltage with increasing light intensities. On the other hand, it became clear that the drop of fill factor is required to be improved for the realization of the multi-junction silicon-based thin-film solar cells with very high efficiency under low concentration ratios of sunlight.