2 May 2012 Computational investigation of silicon thin-film solar cells with grating structures fabricated by holographic lithography
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Abstract
Light trapping due to rough interfaces is a common and industrially applied technique to enhance cell performance in silicon thin-film solar cells. The induced scattering enhances the absorption and consequently the conversion efficiency of the device. Periodic structures promise to further enhance the light trapping, allowing a beneficial reduction of the absorber layer thickness. In this work, solar cells with transparent front contacts with a two-dimensional (2D) grating structure produced by holographic lithography are investigated. The grating structures are characterized by various means and the results are used to calibrate finite-difference time-domain (FDTD) simulations. With the computational method, the influence of the grating height on the solar cell performance is investigated.
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Martin Theuring, Martin Theuring, Jürgen Lacombe, Jürgen Lacombe, Kambulakwao Chakanga, Kambulakwao Chakanga, Ruben Hünig, Ruben Hünig, Klaus Huska, Klaus Huska, Martin Vehse, Martin Vehse, Karsten von Maydell, Karsten von Maydell, Uli Lemmer, Uli Lemmer, Carsten Agert, Carsten Agert, } "Computational investigation of silicon thin-film solar cells with grating structures fabricated by holographic lithography", Proc. SPIE 8438, Photonics for Solar Energy Systems IV, 84381Q (2 May 2012); doi: 10.1117/12.921799; https://doi.org/10.1117/12.921799
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