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In situ imaging of temperature-dependent fast and reversible nanoscale domain switching in a single-crystal perovskite

Marçal, Lucas A.B. LU ; Dzhigaev, Dmitry LU orcid ; Zhang, Zhaojun LU ; Sanders, Ella ; Rothman, Amnon ; Zatterin, Edoardo ; Bellec, Ewen ; Schülli, Tobias U. ; Mikkelsen, Anders LU and Joselevich, Ernesto , et al. (2022) In Physical Review Materials 6(5).
Abstract

Metal halide perovskites exhibit a rich crystal structure, with multiple phases as well as ferroelastic domains, which is crucial for the optical and electrical properties. The average crystal phase-transition temperatures can be shifted by size, strain, or defects, but it is not clear whether such differences can also appear locally within a single crystal. The experimental study of domain dynamics within nanocrystals is challenging and requires a method capable of probing crystal lattice variations with both high spatial and temporal resolution. Here, we show that in situ full-field diffraction x-ray microscopy can be used to image domains in a single crystal CsPbBr3 nanoplatelet as the temperature traverses the orthorhombic to... (More)

Metal halide perovskites exhibit a rich crystal structure, with multiple phases as well as ferroelastic domains, which is crucial for the optical and electrical properties. The average crystal phase-transition temperatures can be shifted by size, strain, or defects, but it is not clear whether such differences can also appear locally within a single crystal. The experimental study of domain dynamics within nanocrystals is challenging and requires a method capable of probing crystal lattice variations with both high spatial and temporal resolution. Here, we show that in situ full-field diffraction x-ray microscopy can be used to image domains in a single crystal CsPbBr3 nanoplatelet as the temperature traverses the orthorhombic to tetragonal phase transition, at 150 nm spatial resolution and 6 s time resolution. The images reveal sudden domain pattern changes faster than the temporal resolution. Surprisingly, we observe substantial local variations during heating, with domain changes occurring at different temperatures within the single crystal. The nanoplatelet exhibits a high-temperature domain pattern completely different from the low-temperature one, but both patterns are reproducible, and we reversibly switch between them in multiple cycles. These results demonstrate that single CsPbBr3 crystals can exhibit substantial local variation of their basic crystal properties.

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publication status
published
subject
in
Physical Review Materials
volume
6
issue
5
article number
054408
publisher
American Physical Society
external identifiers
  • scopus:85130628037
ISSN
2475-9953
DOI
10.1103/PhysRevMaterials.6.054408
language
English
LU publication?
yes
additional info
Funding Information: This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 801847). This research was also funded by the Olle Engkvist foundation, NanoLund, and Marie Sklodowska Curie Actions Cofund, Project INCA 600398. We acknowledge ESRF for time on the ID01 Beamline under Proposal No. MA-4714. E.J. acknowledges support from the Israel Science Foundation (Grant No. 2444/19). Publisher Copyright: © 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by "https://www.kb.se/samverkan-och-utveckling/oppen-tillgang-och-bibsamkonsortiet/bibsamkonsortiet.html"Bibsam.
id
5b6d3530-a925-4dc1-8200-1ab87db5d07c
date added to LUP
2022-07-14 12:27:45
date last changed
2023-11-21 06:16:59
@article{5b6d3530-a925-4dc1-8200-1ab87db5d07c,
  abstract     = {{<p>Metal halide perovskites exhibit a rich crystal structure, with multiple phases as well as ferroelastic domains, which is crucial for the optical and electrical properties. The average crystal phase-transition temperatures can be shifted by size, strain, or defects, but it is not clear whether such differences can also appear locally within a single crystal. The experimental study of domain dynamics within nanocrystals is challenging and requires a method capable of probing crystal lattice variations with both high spatial and temporal resolution. Here, we show that in situ full-field diffraction x-ray microscopy can be used to image domains in a single crystal CsPbBr3 nanoplatelet as the temperature traverses the orthorhombic to tetragonal phase transition, at 150 nm spatial resolution and 6 s time resolution. The images reveal sudden domain pattern changes faster than the temporal resolution. Surprisingly, we observe substantial local variations during heating, with domain changes occurring at different temperatures within the single crystal. The nanoplatelet exhibits a high-temperature domain pattern completely different from the low-temperature one, but both patterns are reproducible, and we reversibly switch between them in multiple cycles. These results demonstrate that single CsPbBr3 crystals can exhibit substantial local variation of their basic crystal properties. </p>}},
  author       = {{Marçal, Lucas A.B. and Dzhigaev, Dmitry and Zhang, Zhaojun and Sanders, Ella and Rothman, Amnon and Zatterin, Edoardo and Bellec, Ewen and Schülli, Tobias U. and Mikkelsen, Anders and Joselevich, Ernesto and Wallentin, Jesper}},
  issn         = {{2475-9953}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Materials}},
  title        = {{In situ imaging of temperature-dependent fast and reversible nanoscale domain switching in a single-crystal perovskite}},
  url          = {{http://dx.doi.org/10.1103/PhysRevMaterials.6.054408}},
  doi          = {{10.1103/PhysRevMaterials.6.054408}},
  volume       = {{6}},
  year         = {{2022}},
}