Nanotextured perovskite/silicon tandem solar cells with >28% efficiency

Philipp Tockhorn; Johannes Sutter; Klaus Jäger; Philipp Wagner; Amran Al-Ashouri; Bernd Stannowski; Steve Albrecht; Christiane Becker

doi:10.1117/12.2621667

30 May 2022 Nanotextured perovskite/silicon tandem solar cells with >28% efficiency

Philipp Tockhorn, Johannes Sutter, Klaus Jäger, Philipp Wagner, Amran Al-Ashouri, Bernd Stannowski, Steve Albrecht, Christiane Becker

Author Affiliations +

Proceedings Volume PC12150, Photonics for Solar Energy Systems IX; PC1215002 (2022) https://doi.org/10.1117/12.2621667
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

Optical simulations of perovskite/silicon tandem solar cells show that nanotexturing both sides of the perovskite top cell yields the strongest antireflective effect. Cells with an intermediate texture in-between the perovskite and silicon sub cells perform comparably to configurations with a fully planar top cell. However, in experiment intermediate-textured solar cells perform slightly better than their planar counterparts. A numerical sensitivity analysis shows that this can be attributed to the thickness of a silicon oxide layer in-between the two sub cells: this thickness affects the optics for a fully planar top cell, but does not affect the performance for intermediate texturing.

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Citation Download Citation

Philipp Tockhorn, Johannes Sutter, Klaus Jäger, Philipp Wagner, Amran Al-Ashouri, Bernd Stannowski, Steve Albrecht, and Christiane Becker "Nanotextured perovskite/silicon tandem solar cells with >28% efficiency", Proc. SPIE PC12150, Photonics for Solar Energy Systems IX, PC1215002 (30 May 2022); https://doi.org/10.1117/12.2621667

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