Efficient multiphysics modeling of thin-film solar cells with periodically textured surfaces

Farid Elsehrawy; Alberto Tibaldi; Federica Cappelluti

doi:10.1117/12.2511126

27 February 2019 Efficient multiphysics modeling of thin-film solar cells with periodically textured surfaces

Farid Elsehrawy, Alberto Tibaldi, Federica Cappelluti

Proceedings Volume 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII; 109130K (2019) https://doi.org/10.1117/12.2511126
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Diffraction gratings have emerged as one of the main strategies for effective light trapping in thin-film solar cells. The simulation of such photonic structures requires computationally intensive 2D or 3D full-wave approaches, which are therefore unfeasible for computer-aided design purposes. This would be even more challenging in view of performing self-consistent coupling with electronic transport models to fully account for carrier collection and carrier-photon interactions. In this work this problem has been addressed by means of a novel and computationally efficient multiphysics approach for coupled electrical-optical simulations, based on the multimodal scattering matrix formalism, wherein the grating is modeled by a scattering matrix that can be easily derived from simulations performed by rigorous coupled wave analysis.

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Farid Elsehrawy, Alberto Tibaldi, and Federica Cappelluti "Efficient multiphysics modeling of thin-film solar cells with periodically textured surfaces", Proc. SPIE 10913, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VIII, 109130K (27 February 2019); https://doi.org/10.1117/12.2511126

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