Mitigation of Open-Circuit Voltage Losses in Perovskite Solar Cells Processed over Micrometer-Sized-Textured Si Substrates

Ahmed Farag; Paul Fassl; Hang HuThomas FeeneyAina QuintillaMarco A. Ruiz-PreciadoWolfram HempelDominik BagrowskiPhilipp NoackBianca WattenbergTorsten DippellUlrich W. Paetzold

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Mitigation of Open-Circuit Voltage Losses in Perovskite Solar Cells Processed over Micrometer-Sized-Textured Si Substrates

机译：Mitigation of Open-Circuit Voltage Losses in Perovskite Solar Cells Processed over Micrometer-Sized-Textured Si Substrates

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The recent development of solution-processed perovskite thin films overmicrometer-sized textured silicon bottom solar cells enables tandem solar cellswith power conversion efficiencies > 30%. Next to improved light harvesting,textured silicon wafers are the industrial standard. To achieve high performance,the open-circuit voltage losses that occur when fabricating perovskitesolar cells over such textures need to be mitigated. This study provides a practicalguideline to discriminate and address the voltage losses at the interfacesas well as in the bulk of solution-processed double cation perovskite thin filmsusing photoluminescence quantum yield measurements. Furthermore, theorigin of these losses is investigated via morphological, microstructural, andcompositional analysis and present possible mitigation strategies. The guidelinewill be beneficial for scientists working on randomly textured surfaces andprovides a deeper understanding on this timely research topic.

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《Advanced functional materials》 |2023年第3期|2210758.1-2210758.14|共14页
作者
Ahmed Farag; Paul Fassl; Hang HuThomas FeeneyAina QuintillaMarco A. Ruiz-PreciadoWolfram HempelDominik BagrowskiPhilipp NoackBianca WattenbergTorsten DippellUlrich W. Paetzold;
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Light Technology InstituteKarlsruhe Institute of Technology (KIT)Engesserstrasse 13, 76131 Karlsruhe, Germany, Institute of Microstructure TechnologyKarlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-Leopoldshafen, German;

Light Technology InstituteKarlsruhe Institute of Technology (KIT)Engesserstrasse 13, 76131 Karlsruhe, Germany;

Center for Functional NanostructuresKarlsruhe Institute of Technology (KIT)Wolfgang-Gaede-Strasse 1a, 76131 Karlsruhe, GermanyZentrum fuer Sonnenenergie- und Wasserstoff-ForschungBaden-Wuerttemberg (ZSW)Meitnerstr. 1, 70563 Stuttgart, GermanySingulus Technologies AGHanauer Landstrasse 103, D-63796 Kahl/Main, Germany;

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正文语种英语
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implied open-circuit voltage; perovskite solar cells; photoluminescence quantum yield; pyramidal textures; solvent engineering; surface passivation; voltage losses;

Mitigation of Open-Circuit Voltage Losses in Perovskite Solar Cells Processed over Micrometer-Sized-Textured Si Substrates

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