High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization
AuthorsSaidaminov, Makhsud I.
Abdelhady, Ahmed L.
Burlakov, Victor M.
Mohammed, Omar F.
KAUST DepartmentKAUST Solar Center (KSC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
KAUST Catalysis Center (KCC)
Materials Science and Engineering Program
Imaging and Characterization Core Lab
Permanent link to this recordhttp://hdl.handle.net/10754/559595
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AbstractSingle 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.
CitationHigh-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization 2015, 6:7586 Nature Communications
PublisherNature Publishing Group
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