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Shape-Dependent Kinetics of Halide Vacancy Filling in Organolead Halide Perovskites

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Title: Shape-Dependent Kinetics of Halide Vacancy Filling in Organolead Halide Perovskites
Authors: Okamoto, Takuya Browse this author →KAKEN DB
Shahjahan, Md Browse this author
Biju, Vasudevanpillai Browse this author
Keywords: crystal shape
halide perovskites
halide vacancy
single crystals
time-resolved photoluminescence
Issue Date: 4-Oct-2021
Publisher: Wiley-Blackwell
Journal Title: Advanced optical materials
Volume: 9
Issue: 19
Start Page: 2100355
Publisher DOI: 10.1002/adom.202100355
Abstract: Halide perovskites show high photoluminescence quantum yields and tunable bandgap. While perovskites' optical properties significantly degrade due to the ionic and electronic defects, a correlation among their structure, size, defects, and degradation rate remains concealed. The authors report the crystal shape- and halide vacancy-dependent stability of methylammonium lead bromide single crystals. The vacancies are filled in the cubic-, plate-, and rod-shaped crystals by the halide-soaking and light-soaking processes. The differences in the stability, photoluminescence intensity, lifetime, and vacancy filling rates in these geometrical shapes derive from their specific surface-to-volume ratios. The shape-dependent vacancy filling helps to correlate the electron microscope images, elemental compositions, and the photoluminescence intensity and lifetime.
Rights: This is the peer reviewed version of the following article: [Okamoto, T., Shahjahan, Md., Biju, V., Shape-Dependent Kinetics of Halide Vacancy Filling in Organolead Halide Perovskites. Adv. Optical Mater. 2021, 9, 2100355.], which has been published in final form at []. 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)
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: BIJU, Vasudevan Pillai

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