Enhancing the Electronic Properties and Stability of High-EfficiencyTin-Lead Mixed Halide Perovskite Solar Cells via DopingEngineering
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https://doi.org/10.1021/acs.jpclett.2c00699 |
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Title
Enhancing the Electronic Properties and Stability of High-EfficiencyTin-Lead Mixed Halide Perovskite Solar Cells via DopingEngineeringAuthor (s)
Date
2022-03-31Publisher
American Chemical SocietyISSN
1948-7185Bibliographic citation
Enhancing the Electronic Properties and Stability of High-Efficiency Tin–Lead Mixed Halide Perovskite Solar Cells via Doping Engineering Shahrir Razey Sahamir, Muhammad Akmal Kamarudin, Teresa S. Ripolles, Ajay Kumar Baranwal, Gaurav Kapil, Qing Shen, Hiroshi Segawa, Juan Bisquert, and Shuzi Hayase The Journal of Physical Chemistry Letters 2022 13 (13), 3130-3137 DOI: 10.1021/acs.jpclett.2c00699Type
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info:eu-repo/semantics/publishedVersionSubject
Abstract
Overcoming Voc loss to increase the efficiency of perovskite solar cells (PSCs) has been aggressively studied. In this work, we introduce and compare rubidium iodide (RbI) and potassium iodide (KI) alkali metal halides ... [+]
Overcoming Voc loss to increase the efficiency of perovskite solar cells (PSCs) has been aggressively studied. In this work, we introduce and compare rubidium iodide (RbI) and potassium iodide (KI) alkali metal halides (AMHs) as dopants in a tin–lead (SnPb)-based perovskite system to improve the performance of PSCs by enhancing their Voc. Improvement in terms of surface morphology, crystallinity, charge transfer, and carrier transport in the SnPb perovskites was observed with the addition of AMH dopants. Significant power conversion efficiency improvement has been achieved with the incorporation of either dopant, and the highest efficiency was 21.04% in SnPb mixed halide PSCs when the RbI dopant was employed. In conclusion, we can outline the enhancement strategy that yields a remarkable efficiency of >20% with a smaller Voc loss and improved storage, light, and thermal stability in SnPb PSCs via doping engineering. [-]
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J. Phys. Chem. Lett. 2022, 13, 3130−3137Rights
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