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6 November 2014 Enhancement of light absorption in organic solar cells by using plasmonic gratings
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Abstract
Organic solar cells show a commercially viable future duo to their inherent advantages, such as light weight, flexibility, and so on. Recently, a lot of progress has been made in every domain of organic solar cells. Among these, plasmonic light trapping is regarded as a promising light management technology for improving the light absorption in organic active layer. In this work, we numerically investigate the light enhancement in organic solar cell by embedding metal gratings as electrodes, including the anode and cathode. The absorption enhancement mechanism is analyzed, and the effects of grating parameters and incident angle are also investigated systematically. The results show the plasmonic gratings, especially the bottom grating, have an obvious improvement for light harvesting in organic layer, and an optical enhancement factor about 100% is obtained.
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Xiao Xiao, Zhiyou Zhang, Shiwei Xie, Yu Liu, Yucui Zhai, Dejiao Hu, and Jinglei Du "Enhancement of light absorption in organic solar cells by using plasmonic gratings", Proc. SPIE 9272, Optical Design and Testing VI, 92721S (6 November 2014); https://doi.org/10.1117/12.2073552
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