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Optics in Thin-film Silicon Solar Cells with Integrated Lamellar Gratings

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Light trapping in microcrystalline silicon thin-film solar cells with integrated lamellar gratings was investigated. The influence of the grating dimensions on the short circuit current and quantum efficiency was investigated by numerical simulation of Maxwell’s equations by a Finite Difference Time Domain approach. For the red and infrared part of the optical spectrum, the grating structure leads to scattering and higher order diffraction resulting in an increased absorption of the incident light in the silicon thin-film solar cell. By studying the diffracted waves arising from lamellar gratings, simple design rules for optimal grating dimensions were derived.

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Authors and Affiliations

  1. School of Engineering and Science, Jacobs University Bremen, 28759, Bremen, Germany

    Rahul Dewan, Darin Madzharov, Andrey Raykov & Dietmar Knipp

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  1. Rahul Dewan
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  2. Darin Madzharov
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  3. Andrey Raykov
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  4. Dietmar Knipp
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Dewan, R., Madzharov, D., Raykov, A. et al. Optics in Thin-film Silicon Solar Cells with Integrated Lamellar Gratings. MRS Online Proceedings Library 1153, 720 (2008). https://doi.org/10.1557/PROC-1153-A07-20

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  • DOI: https://doi.org/10.1557/PROC-1153-A07-20

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