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Shape-Dependent Kinetics of Halide Vacancy Filling in Organolead Halide Perovskites
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. https://doi.org/10.1002/adom.202100355], which has been published in final form at [https://doi.org/10.1002/adom.202100355]. 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/2115/86949 |
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)
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Submitter: BIJU, Vasudevan Pillai
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