High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization

Makhsud I. Saidaminov, Ahmed L. Abdelhady, Banavoth Murali, Erkki Alarousu, Victor M. Burlakov, Wei Peng, Ibrahim Dursun, Lingfei Wang, Yao He, Giacomo Maculan, Alain Goriely, Tom Wu, Omar F. Mohammed and Osman M. Bakr ()
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Makhsud I. Saidaminov: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Ahmed L. Abdelhady: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Banavoth Murali: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Erkki Alarousu: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Victor M. Burlakov: Mathematical Institute, University of Oxford
Wei Peng: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Ibrahim Dursun: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Lingfei Wang: Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST)
Yao He: Imaging and Characterization Lab, King Abdullah University of Science and Technology (KAUST)
Giacomo Maculan: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Alain Goriely: Mathematical Institute, University of Oxford
Tom Wu: Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST)
Omar F. Mohammed: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)
Osman M. Bakr: Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST)

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Single crystals of methylammonium lead trihalide perovskites (MAPbX3; MA=CH3NH3+, X=Br− or I−) have shown remarkably low trap density and charge transport properties; however, growth of such high-quality semiconductors is a time-consuming process. Here we present a rapid crystal growth process to obtain MAPbX3 single crystals, an order of magnitude faster than previous reports. The process is based on our observation of the substantial decrease of MAPbX3 solubility, in certain solvents, at elevated temperatures. The crystals can be both size- and shape-controlled by manipulating the different crystallization parameters. Despite the rapidity of the method, the grown crystals exhibit transport properties and trap densities comparable to the highest quality MAPbX3 reported to date. The phenomenon of inverse or retrograde solubility and its correlated inverse temperature crystallization strategy present a major step forward for advancing the field on perovskite crystallization.

Date: 2015
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DOI: 10.1038/ncomms8586

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