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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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Hempel, Wolfram
Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2024An Integrated Deposition and Passivation Strategy for Controlled Crystallization of 2D/3D Halide Perovskite Filmscitations
- 2022Mitigation of Open‐Circuit Voltage Losses in Perovskite Solar Cells Processed over Micrometer‐Sized‐Textured Si Substratescitations
- 2019Influence of molybdenum back contact on the PID effect for Cu(In,Ga)Se2 solar cells
- 2019Influence of Molybdenum Back Contact on the PID Effect for Cu(In,Ga)Se2 Solar Cellscitations
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article
Mitigation of Open‐Circuit Voltage Losses in Perovskite Solar Cells Processed over Micrometer‐Sized‐Textured Si Substrates
Abstract
The recent development of solution-processed perovskite thin films over micrometer-sized textured silicon bottom solar cells enables tandem solar cells with 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 perovskite solar cells over such textures need to be mitigated. This study provides a practical guideline to discriminate and address the voltage losses at the interfaces as well as in the bulk of solution-processed double cation perovskite thin films using photoluminescence quantum yield measurements. Furthermore, the origin of these losses is investigated via morphological, microstructural, and compositional analysis and present possible mitigation strategies. The guideline will be beneficial for scientists working on randomly textured surfaces and provides a deeper understanding on this timely research topic.