Optics Express | |
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년도 | 2013 |
학술지명 | Optics Express |
논문명 | Multi-scale and angular analysis of ray-optical light trapping schemes in thin-film solar cells: Micro lens array, V-shaped configuration and double parabolic trapper |
게재권/집 | 21/S2 |
수록페이지 | A276 |
저자명 | Changsoon Cho, and Jung-Yong Lee* |
Link |
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Abstract An efficient light trapping scheme is a key to enhancing the power conversion efficiency (PCE) of thin-film photovoltaic (PV) cells by compensating for the insufficient light absorption. To handle optical components from nano-scale to micro-scale seamlessly, a multi-scale optical simulation is carefully designed in this study and is used to qualitatively analyze the light trapping performances of a micro lens array (MLA), a V-shaped configuration, and the newly proposed scheme, which is termed a double parabolic trapper (DPT) according to both daily and annual movement of the sun. DPT has the potential to enhance the PCE significantly, from 5.9% to 8.9%, for PCDTBT:PC70BM-based polymer solar cells by perfectly trapping the incident light between two parabolic PV cells. |