Qiong Wang, Joel A. Smith, Dieter Skroblin, Julian A. Steele, Christian Michael Wolff, Pietro Caprioglio, Martin Stolterfoht, Hans Köbler, Silver-Hamill Turren-Cruz, Meng Li, Christian Gollwitzer, Dieter Neher, Antonio Abate
- Inorganic perovskites with cesium (Cs+) as the cation have great potential as photovoltaic materials if their phase purity and stability can be addressed. Herein, a series of inorganic perovskites is studied, and it is found that the power conversion efficiency of solar cells with compositions CsPbI1.8Br1.2, CsPbI2.0Br1.0, and CsPbI2.2Br0.8 exhibits a high dependence on the initial annealing step that is found to significantly affect the crystallization and texture behavior of the final perovskite film. At its optimized annealing temperature, CsPbI1.8Br1.2 exhibits a pure orthorhombic phase and only one crystal orientation of the (110) plane. Consequently, this allows for the best efficiency of up to 14.6% and the longest operational lifetime, T-S80, of approximate to 300 h, averaged of over six solar cells, during the maximum power point tracking measurement under continuous light illumination and nitrogen atmosphere. This work provides essential progress on the enhancement of photovoltaic performance and stability of CsPbI3 - xBrxInorganic perovskites with cesium (Cs+) as the cation have great potential as photovoltaic materials if their phase purity and stability can be addressed. Herein, a series of inorganic perovskites is studied, and it is found that the power conversion efficiency of solar cells with compositions CsPbI1.8Br1.2, CsPbI2.0Br1.0, and CsPbI2.2Br0.8 exhibits a high dependence on the initial annealing step that is found to significantly affect the crystallization and texture behavior of the final perovskite film. At its optimized annealing temperature, CsPbI1.8Br1.2 exhibits a pure orthorhombic phase and only one crystal orientation of the (110) plane. Consequently, this allows for the best efficiency of up to 14.6% and the longest operational lifetime, T-S80, of approximate to 300 h, averaged of over six solar cells, during the maximum power point tracking measurement under continuous light illumination and nitrogen atmosphere. This work provides essential progress on the enhancement of photovoltaic performance and stability of CsPbI3 - xBrx perovskite solar cells.…
MetadatenAuthor details: | Qiong WangORCiD, Joel A. SmithORCiD, Dieter SkroblinORCiD, Julian A. SteeleORCiD, Christian Michael WolffORCiDGND, Pietro CaprioglioORCiDGND, Martin StolterfohtORCiDGND, Hans KöblerORCiD, Silver-Hamill Turren-CruzORCiD, Meng Li, Christian GollwitzerORCiD, Dieter NeherORCiDGND, Antonio AbateORCiD |
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URN: | urn:nbn:de:kobv:517-opus4-525374 |
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DOI: | https://doi.org/10.25932/publishup-52537 |
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ISSN: | 1866-8372 |
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Title of parent work (German): | Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe |
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Publication series (Volume number): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (1210) |
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Publication type: | Postprint |
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Language: | English |
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Date of first publication: | 2020/04/27 |
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Publication year: | 2020 |
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Publishing institution: | Universität Potsdam |
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Release date: | 2021/11/18 |
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Tag: | ISOS-L-1I protocol; cesium lead halides; crystal orientation; inorganic perovskites; phase purity; photostability |
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Issue: | 9 |
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Article number: | 2000213 |
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Number of pages: | 11 |
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Source: | Sol. RRL, 4: 2000213. https://doi.org/10.1002/solr.202000213 |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Peer review: | Referiert |
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Publishing method: | Open Access / Green Open-Access |
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License (German): | CC-BY - Namensnennung 4.0 International |
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External remark: | Bibliographieeintrag der Originalveröffentlichung/Quelle |
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