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Optical Absorption of Thin Film Solar Cells with Hybrid Arranged Bottom Grating

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Abstract

Crystalline silicon thin film solar cells with hybrid arranged bottom grating are proposed. Optical absorption efficiency and photocurrent density are calculated to get optimized bottom grating parameters. Compared with mono arranged Ag grating or Al-doped zinc-oxide grating, hybrid arranged bottom grating could couple more near-infrared region lights into the active absorber layer. Optical absorption enhancement profiles are plotted for monolayer grating solar cells with four different bottom grating arrangements, which agree with dispersion characteristics well. The absorption enhancement profiles illustrate the mechanism of the more coupling of near-infrared lights. Electrical modeling is considered in the end and it is found that hybrid arranged bottom grating’s thin film solar cell outperforms the thin film solar cells with mono arranged bottom gratings evidently.

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Acknowledgements

The authors acknowledge support by the projects National Natural Science Foundation of China under Grant Nos. 51435003.

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Authors and Affiliations

  1. School of Mechanical Engineering, Hefei University of Technology, Hefei, Anhui Province, 230009, China

    Ke Chen, Yuanyuan Wang, Hongmei Zheng, Rui Wu, Xiaopeng Yu & Guojun Zhang

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  1. Ke Chen
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  2. Yuanyuan Wang
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  3. Hongmei Zheng
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  4. Rui Wu
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  5. Xiaopeng Yu
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  6. Guojun Zhang
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Correspondence to Yuanyuan Wang.

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Chen, K., Wang, Y., Zheng, H. et al. Optical Absorption of Thin Film Solar Cells with Hybrid Arranged Bottom Grating. Plasmonics 13, 815–823 (2018). https://doi.org/10.1007/s11468-017-0577-2

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  • DOI: https://doi.org/10.1007/s11468-017-0577-2

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