7 March 2014 Towards numerical simulation of nonhomogeneous thin-film silicon solar cells
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We have developed an algorithm for the numerical simulation of the electrical and optical properties of a thin-film silicon solar cell. The intrinsic layer in the p-i-n solar cell is nonhomogeneous in the thickness direction. This nonhomogeneity is to be engineered via variations in the composition of the amorphous silicon. A layer of a transparent conducting oxide is welded to the p layer and the n layer is backed by a periodically corrugated metallic back reflector. The nonhomogeneous intrinsic layer may trap the incident light better than a homogeneous layer and increase the generation rate of electron-hole pairs. The periodically corrugated metallic back reflector can excite surface plasmon-polariton waves as well as waveguide modes. The generation rate of electron-hole pairs is computed using the rigorous coupledwave approach and the drift-diffusion model is used for the computation of the current density-voltage characteristics of the solar cell.
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Tom H. Anderson, Muhammad Faryad, Tom G. Mackay, Akhlesh Lakhtakia, "Towards numerical simulation of nonhomogeneous thin-film silicon solar cells", Proc. SPIE 8981, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III, 898115 (7 March 2014); doi: 10.1117/12.2041663; https://doi.org/10.1117/12.2041663

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