22 May 2018 Antireflective nanotextures for monolithic perovskite-silicon tandem solar cells
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Abstract
Recently, we studied the effect of hexagonal sinusoidal textures on the reflective properties of perovskite-silicon tandem solar cells using the finite element method (FEM). We saw that such nanotextures, applied to the perovskite top cell, can strongly increase the current density utilization from 91% for the optimized planar reference to 98% for the best nanotextured device (period 500 nm and peak-to-valley height 500 nm), where 100% refers to the Tiedje-Yablonovitch limit.* In this manuscript we elaborate on some numerical details of that work: we validate an assumption based on the Tiedje-Yablonovitch limit, we present a convergence study for simulations with the finite-element method, and we compare different configurations for sinusoidal nanotextures.
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Klaus Jäger, Phillip Manley, Duote Chen, Philipp Tockhorn, David Eisenhauer, Grit Köppel, Martin Hammerschmidt, Sven Burger, Steve Albrecht, Christiane Becker, "Antireflective nanotextures for monolithic perovskite-silicon tandem solar cells", Proc. SPIE 10688, Photonics for Solar Energy Systems VII, 106880A (22 May 2018); doi: 10.1117/12.2306142; https://doi.org/10.1117/12.2306142
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