8 December 2004 A V-shaped module technique for promoting generation photocurrent density of silicon solar cells
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Proceedings Volume 5774, Fifth International Conference on Thin Film Physics and Applications; (2004) https://doi.org/10.1117/12.608671
Event: Fifth International Conference on Thin Film Physics and Applications, 2004, Shanghai, China
Abstract
A V-shaped solar cell module consists of two tilted mono-crystalline cells [J. Li, China Patent No. 200410007708.6 (March, 2004)]. The angle included between the two tilted cells is 90 degrees. The two cells were fabricated by using polished silicon wafers. The scheme of both-side polished wafers has been proposed to reduce optical loss. Compared to solar cells in a planar way, the V-shaped structure enhances external quantum efficiency and leads to an increase of 15% in generation photocurrent density. The following three kinds of trapped photons are suggested to contribute to the increase: (1) infrared photons converted from visible photons due to a transformation mechanism, (2) photons reflected from top contact metal, and (3) a residual reflection which can not be eliminated by an antireflection coating.
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Jianming Li, Jianming Li, Ming Chong, Ming Chong, Xiaofeng Duan, Xiaofeng Duan, Jiadong Xu, Jiadong Xu, Min Gao, Min Gao, Fenglian Wang, Fenglian Wang, } "A V-shaped module technique for promoting generation photocurrent density of silicon solar cells", Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); doi: 10.1117/12.608671; https://doi.org/10.1117/12.608671
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