Three-dimensional coherent x-ray diffraction imaging of ferroelastic domains in single CsPbBr3 perovskite nanoparticles
(2021) In New Journal of Physics 23(6).- Abstract
Metal halide perovskites attract significant interest due to their remarkable performance in optoelectronic devices. However, the gap in understanding the relationship between their nanoscale structure and properties limits their application towards novel devices. In this work, twinned ferroelastic domains in single 500 nm CsPbBr3 particles are studied with 3D Bragg coherent x-ray diffraction imaging. A preferential double-domain structure is revealed in four identical particles, with one domain oriented along the [110] and the other along the [002] direction. The particles exhibit similar scattering volume ratios of 0.12 0.026 between twin phases, suggesting the possibility of a deterministic formation process. The domains exhibit a... (More)
Metal halide perovskites attract significant interest due to their remarkable performance in optoelectronic devices. However, the gap in understanding the relationship between their nanoscale structure and properties limits their application towards novel devices. In this work, twinned ferroelastic domains in single 500 nm CsPbBr3 particles are studied with 3D Bragg coherent x-ray diffraction imaging. A preferential double-domain structure is revealed in four identical particles, with one domain oriented along the [110] and the other along the [002] direction. The particles exhibit similar scattering volume ratios of 0.12 0.026 between twin phases, suggesting the possibility of a deterministic formation process. The domains exhibit a difference in lattice tilt of 0.59 degrees, in excellent agreement with calculations of the lattice mismatch at the (112) twin boundary. These results provide important insights both for the fundamental understanding of ferroelastic nanoscale materials and for the performance improvement of perovskite-based devices. Moreover, this work paves the way towards real-time imaging of the domain dynamics in ferroic systems.
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- author
- Dzhigaev, D LU ; Zhang, Z LU ; Marçal, L A B LU ; Sala, S LU ; Björling, A LU ; Mikkelsen, A LU and Wallentin, J LU
- organization
- publishing date
- 2021-06
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- BCDI, coherent x-ray imaging, domains, ferroelastic, perovskites, synchrotron, twinning
- in
- New Journal of Physics
- volume
- 23
- issue
- 6
- article number
- 063035
- pages
- 11 pages
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85108857366
- ISSN
- 1367-2630
- DOI
- 10.1088/1367-2630/ac02e0
- language
- English
- LU publication?
- yes
- id
- 2d66ba32-4517-4849-9de9-090e4de6fb67
- date added to LUP
- 2021-07-08 10:20:53
- date last changed
- 2023-11-08 16:13:29
@article{2d66ba32-4517-4849-9de9-090e4de6fb67, abstract = {{<p>Metal halide perovskites attract significant interest due to their remarkable performance in optoelectronic devices. However, the gap in understanding the relationship between their nanoscale structure and properties limits their application towards novel devices. In this work, twinned ferroelastic domains in single 500 nm CsPbBr3 particles are studied with 3D Bragg coherent x-ray diffraction imaging. A preferential double-domain structure is revealed in four identical particles, with one domain oriented along the [110] and the other along the [002] direction. The particles exhibit similar scattering volume ratios of 0.12 0.026 between twin phases, suggesting the possibility of a deterministic formation process. The domains exhibit a difference in lattice tilt of 0.59 degrees, in excellent agreement with calculations of the lattice mismatch at the (112) twin boundary. These results provide important insights both for the fundamental understanding of ferroelastic nanoscale materials and for the performance improvement of perovskite-based devices. Moreover, this work paves the way towards real-time imaging of the domain dynamics in ferroic systems.</p>}}, author = {{Dzhigaev, D and Zhang, Z and Marçal, L A B and Sala, S and Björling, A and Mikkelsen, A and Wallentin, J}}, issn = {{1367-2630}}, keywords = {{BCDI; coherent x-ray imaging; domains; ferroelastic; perovskites; synchrotron; twinning}}, language = {{eng}}, number = {{6}}, publisher = {{IOP Publishing}}, series = {{New Journal of Physics}}, title = {{Three-dimensional coherent x-ray diffraction imaging of ferroelastic domains in single CsPbBr<sub>3</sub> perovskite nanoparticles}}, url = {{http://dx.doi.org/10.1088/1367-2630/ac02e0}}, doi = {{10.1088/1367-2630/ac02e0}}, volume = {{23}}, year = {{2021}}, }