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Optimizing Composition and Morphology for Large-Grain Perovskite Solar Cells via Chemical Control
Journal article   Peer reviewed

Optimizing Composition and Morphology for Large-Grain Perovskite Solar Cells via Chemical Control

Hsinhan Tsai, Wanyi Nie, Pradeep Cheruku, Nathan H. Mack, Ping Xu, Gautam Gupta, Aditya D. Mohite and Hsing-Lin Wang
Chemistry of materials, Vol.27(16), pp.5570-5576
08/25/2015
DOI: https://doi.org/10.1021/acs.chemmater.5b02378

Abstract and subjects

Chemistry Chemistry, Physical Materials Science Materials Science, Multidisciplinary Physical Sciences Science & Technology Technology
We report solid iodine as a precursor additive for achieving purified organometallic perovskite crystals. By adding iodine, we found that the reaction can be pushed toward pure iodine phase rather than the kinetically favored chlorine phase. This approach can be applied in large crystalline perovskite solar cells and improved the average efficiency from 9.83% to 15.58%.

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