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Crystallization of Methylammonium Lead Halide Perovskites by Optical Trapping

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Title: Crystallization of Methylammonium Lead Halide Perovskites by Optical Trapping
Authors: Yuyama, Ken-ichi Browse this author
Islam, Md Jahidul Browse this author
Takahashi, Kiyonori Browse this author
Nakamura, Takayoshi Browse this author →KAKEN DB
Biju, Vasudevanpillai Browse this author
Keywords: laser manipulation
optical trapping
perovskites
photoluminescence
single crystals
Issue Date: 8-Oct-2018
Publisher: Wiley-Blackwell
Journal Title: Angewandte chemie-international edition
Volume: 57
Issue: 41
Start Page: 13424
End Page: 13428
Publisher DOI: 10.1002/anie.201806079
Abstract: Single crystals of organolead halide perovskites attract much attention to electrooptical and photovoltaic applications. They are usually prepared in precursor solutions incubated at controlled temperatures or under optimized vapor atmosphere conditions, and thus, multiple perovskite crystals are nucleated all over the solution. Multiple nucleation of crystals prevents efficient use of precursors in the preferential growth of large single crystals. An innovative approach is presented for spatiotemporally controlled, selective nucleation and growth of single crystals of lead halide perovskites by optical trapping with a focused laser beam. Upon such trapping in unsaturated precursor solutions, nucleation of MAPbX(3) (MA = CH3NH3+; X = Cl-, Br-, or I-) is induced at the focal spot through increase in the concentration of perovskite precursors in the focal volume. The rate at which the nucleated crystal grows depends upon whether the perovskite absorbs the trapping laser or not. These findings suggest that optical trapping would be useful to prepare various perovskite single crystals and modify their optical and electronic properties; thereby, offering new methods for engineering of perovskite crystals.
Rights: This is the peer reviewed version of the following article: Ken‐ichi Yuyama, Md Jahidul Islam, Kiyonori Takahashi, Takayoshi Nakamura, and Vasudevanpillai Biju. Crystallization of Methylammonium Lead Halide Perovskites by Optical Trapping. Angewandte chemie-international edition. Volume 57, Issue 41. October 8, 2018. Pages 13424-13428, which has been published in final form at https://doi.org/10.1002/anie.201806079 . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
URI: http://hdl.handle.net/2115/75726
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柚山 健一

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