Optimization of triangle grating structures for light trapping in thin film silicon solar cells

Leijie Ling; Yonggang Wu; Zihuan Xia; Naibo Chen; Zhenhua Wang

doi:10.1117/12.887556

18 February 2011 Optimization of triangle grating structures for light trapping in thin film silicon solar cells

Leijie Ling, Yonggang Wu, Zihuan Xia, Naibo Chen, Zhenhua Wang

Proceedings Volume 7995, Seventh International Conference on Thin Film Physics and Applications; 79950K (2011) https://doi.org/10.1117/12.887556
Event: Seventh International Conference on Thin Film Physics and Applications, 2010, Shanghai, China

Abstract

The influence of different triangular grating shapes on the absorption performance of the thin-film silicon solar cell is discussed in this paper. A finite difference time domain method is used to make the numerical simulation. By studying the shape of the triangular grating, the designs of structure are optimized to achieve higher short circuit currents and quantum efficiencies. We find that the blaze grating structure is the ideal initial texture for thin-film solar cells. Compared with the triangular grating, the short circuit current of the blaze grating is improved by 7.09% for the entire spectrum. The short circuit current for the short wavelength is increased by 13.5% whereas the short circuit current in the red and infrared part of spectrum is increased by 86.5%.

Citation Download Citation

Leijie Ling, Yonggang Wu, Zihuan Xia, Naibo Chen, and Zhenhua Wang "Optimization of triangle grating structures for light trapping in thin film silicon solar cells", Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79950K (18 February 2011); https://doi.org/10.1117/12.887556

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