Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling

H. H. Hsiao; H. C. Chang; Y. R. Wu

doi:10.1117/12.2079582

16 March 2015 Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling

H. H. Hsiao, H. C. Chang, Y. R. Wu

Author Affiliations +

Proceedings Volume 9358, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV; 935808 (2015) https://doi.org/10.1117/12.2079582
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper.

Citation Download Citation

H. H. Hsiao, H. C. Chang, and Y. R. Wu "Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling", Proc. SPIE 9358, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV, 935808 (16 March 2015); https://doi.org/10.1117/12.2079582

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