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dc.contributor.authorXiao, Xun
dc.contributor.authorZhou, Jian
dc.contributor.authorSong, Kepeng
dc.contributor.authorZhao, Jingjing
dc.contributor.authorZhou, Yu
dc.contributor.authorRudd, Peter Neil
dc.contributor.authorHan, Yu
dc.contributor.authorLi, Ju
dc.contributor.authorHuang, Jinsong
dc.date.accessioned2021-02-28T08:13:01Z
dc.date.available2020-12-02T07:45:33Z
dc.date.available2021-02-28T08:13:01Z
dc.date.issued2021-02-26
dc.date.submitted2020-11-16
dc.identifier.citationXiao, X., Zhou, J., Song, K., Zhao, J., Zhou, Y., Rudd, P. N., … Huang, J. (2021). Layer number dependent ferroelasticity in 2D Ruddlesden–Popper organic-inorganic hybrid perovskites. Nature Communications, 12(1). doi:10.1038/s41467-021-21493-w
dc.identifier.issn2041-1723
dc.identifier.doi10.1038/s41467-021-21493-w
dc.identifier.urihttp://hdl.handle.net/10754/666220
dc.description.abstractAbstractFerroelasticity represents material domains possessing spontaneous strain that can be switched by external stress. Three-dimensional perovskites like methylammonium lead iodide are determined to be ferroelastic. Layered perovskites have been applied in optoelectronic devices with outstanding performance. However, the understanding of lattice strain and ferroelasticity in layered perovskites is still lacking. Here, using the in-situ observation of switching domains in layered perovskite single crystals under external strain, we discover the evidence of ferroelasticity in layered perovskites with layer number more than one, while the perovskites with single octahedra layer do not show ferroelasticity. Density functional theory calculation shows that ferroelasticity in layered perovskites originates from the distortion of inorganic octahedra resulting from the rotation of aspherical methylammonium cations. The absence of methylammonium cations in single layer perovskite accounts for the lack of ferroelasticity. These ferroelastic domains do not induce non-radiative recombination or reduce the photoluminescence quantum yield.
dc.description.sponsorshipThe experimental work at UNC is financially supported by Center for Hybrid Organic-Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the US Department of Energy. Li also thanks the financial support from the Department of the Defense, Defense Threat Reduction Agency under award HDTRA1-20-2-0002. The content of the information does not necessarily reflect the position or the policy of the federal government, and no official endorsement should be inferred.
dc.publisherSpringer Nature
dc.relation.urlhttp://www.nature.com/articles/s41467-021-21493-w
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleLayer number dependent ferroelasticity in 2D Ruddlesden–Popper organic-inorganic hybrid perovskites
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Science Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalNature Communications
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC 27599, USA.
dc.contributor.institutionDepartment of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. .
dc.identifier.volume12
dc.identifier.issue1
kaust.personSong, Kepeng
kaust.personHan, Yu
dc.date.accepted2021-01-29
refterms.dateFOA2020-12-02T07:46:53Z


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
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