Chemical nature of ferroelastic twin domains in CH                         3                         NH                         3                         PbI                         3                          perovskite

Yongtao Liu; Liam Collins; Roger Proksch; Songkil Kim; Brianna R. Watson; Benjamin Doughty; Tessa R. Calhoun; Mahshid Ahmadi; Anton V. Ievlev; Stephen Jesse; Scott T. Retterer; Alex Belianinov; Kai Xiao; Jingsong Huang; Bobby G. Sumpter; Sergei V. Kalinin; Bin Hu; Olga S. Ovchinnikova

doi:10.1038/s41563-018-0152-z

Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite

Yongtao Liu, Liam Collins, Roger Proksch, Songkil Kim, Brianna R. Watson, Benjamin Doughty, Tessa R. Calhoun, Mahshid Ahmadi, Anton V. Ievlev, Stephen Jesse, Scott T. Retterer, Alex Belianinov, Kai Xiao, Jingsong Huang, Bobby G. Sumpter, Sergei V. Kalinin, Bin Hu, Olga S. Ovchinnikova

Research output: Contribution to journal › Article › peer-review

187 Scopus citations

Abstract

The extraordinary optoelectronic performance of hybrid organic–inorganic perovskites has resulted in extensive efforts to unravel their properties. Recently, observations of ferroic twin domains in methylammonium lead triiodide drew significant attention as a possible explanation for the current–voltage hysteretic behaviour in these materials. However, the properties of the twin domains, their local chemistry and the chemical impact on optoelectronic performance remain unclear. Here, using multimodal chemical and functional imaging methods, we unveil the mechanical origin of the twin domain contrast observed with piezoresponse force microscopy in methylammonium lead triiodide. By combining experimental results with first principles simulations we reveal an inherent coupling between ferroelastic twin domains and chemical segregation. These results reveal an interplay of ferroic properties and chemical segregation on the optoelectronic performance of hybrid organic–inorganic perovskites, and offer an exploratory path to improving functional devices.

Original language	English
Pages (from-to)	1013-1019
Number of pages	7
Journal	Nature Materials
Volume	17
Issue number	11
DOIs	https://doi.org/10.1038/s41563-018-0152-z
State	Published - Nov 1 2018

Funding

This research was supported by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the US Department of Energy (Y.L., A.I., B.D. and O.S.O.). The research was partially sponsored by the Air Force Office of Scientific Research (AFOSR) under grant no. FA 9550-15-1-0064, AOARD (FA2386-15-1-4104), and the National Science Foundation CBET-1438181 (M.A. and B.H.) and supported by the University of Tennessee, Knoxville (B.R.W. and T.R.C.). This research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility.

Funders	Funder number
US Department of Energy
National Science Foundation	CBET-1438181
Air Force Office of Scientific Research	FA2386-15-1-4104, FA 9550-15-1-0064
Oak Ridge National Laboratory
University of Tennessee

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Liu, Y., Collins, L., Proksch, R., Kim, S., Watson, B. R., Doughty, B., Calhoun, T. R., Ahmadi, M., Ievlev, A. V., Jesse, S., Retterer, S. T., Belianinov, A., Xiao, K., Huang, J., Sumpter, B. G., Kalinin, S. V., Hu, B., & Ovchinnikova, O. S. (2018). Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite Nature Materials, 17(11), 1013-1019. https://doi.org/10.1038/s41563-018-0152-z

Liu, Yongtao ; Collins, Liam ; Proksch, Roger et al. / Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite In: Nature Materials. 2018 ; Vol. 17, No. 11. pp. 1013-1019.

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title = " Chemical nature of ferroelastic twin domains in CH 3 NH 3 PbI 3 perovskite ",

abstract = "The extraordinary optoelectronic performance of hybrid organic–inorganic perovskites has resulted in extensive efforts to unravel their properties. Recently, observations of ferroic twin domains in methylammonium lead triiodide drew significant attention as a possible explanation for the current–voltage hysteretic behaviour in these materials. However, the properties of the twin domains, their local chemistry and the chemical impact on optoelectronic performance remain unclear. Here, using multimodal chemical and functional imaging methods, we unveil the mechanical origin of the twin domain contrast observed with piezoresponse force microscopy in methylammonium lead triiodide. By combining experimental results with first principles simulations we reveal an inherent coupling between ferroelastic twin domains and chemical segregation. These results reveal an interplay of ferroic properties and chemical segregation on the optoelectronic performance of hybrid organic–inorganic perovskites, and offer an exploratory path to improving functional devices.",

author = "Yongtao Liu and Liam Collins and Roger Proksch and Songkil Kim and Watson, {Brianna R.} and Benjamin Doughty and Calhoun, {Tessa R.} and Mahshid Ahmadi and Ievlev, {Anton V.} and Stephen Jesse and Retterer, {Scott T.} and Alex Belianinov and Kai Xiao and Jingsong Huang and Sumpter, {Bobby G.} and Kalinin, {Sergei V.} and Bin Hu and Ovchinnikova, {Olga S.}",

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doi = "10.1038/s41563-018-0152-z",

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Liu, Y , Collins, L, Proksch, R, Kim, S, Watson, BR, Doughty, B, Calhoun, TR, Ahmadi, M, Ievlev, AV , Jesse, S , Retterer, ST, Belianinov, A, Xiao, K , Huang, J , Sumpter, BG, Kalinin, SV, Hu, B & Ovchinnikova, OS 2018, ' Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite ', Nature Materials, vol. 17, no. 11, pp. 1013-1019. https://doi.org/10.1038/s41563-018-0152-z

Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite . / Liu, Yongtao ; Collins, Liam; Proksch, Roger et al.
In: Nature Materials, Vol. 17, No. 11, 01.11.2018, p. 1013-1019.

Research output: Contribution to journal › Article › peer-review

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T1 - Chemical nature of ferroelastic twin domains in CH 3 NH 3 PbI 3 perovskite

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AU - Collins, Liam

AU - Proksch, Roger

AU - Kim, Songkil

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AU - Doughty, Benjamin

AU - Calhoun, Tessa R.

AU - Ahmadi, Mahshid

AU - Ievlev, Anton V.

AU - Jesse, Stephen

AU - Retterer, Scott T.

AU - Belianinov, Alex

AU - Xiao, Kai

AU - Huang, Jingsong

AU - Sumpter, Bobby G.

AU - Kalinin, Sergei V.

AU - Hu, Bin

AU - Ovchinnikova, Olga S.

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AB - The extraordinary optoelectronic performance of hybrid organic–inorganic perovskites has resulted in extensive efforts to unravel their properties. Recently, observations of ferroic twin domains in methylammonium lead triiodide drew significant attention as a possible explanation for the current–voltage hysteretic behaviour in these materials. However, the properties of the twin domains, their local chemistry and the chemical impact on optoelectronic performance remain unclear. Here, using multimodal chemical and functional imaging methods, we unveil the mechanical origin of the twin domain contrast observed with piezoresponse force microscopy in methylammonium lead triiodide. By combining experimental results with first principles simulations we reveal an inherent coupling between ferroelastic twin domains and chemical segregation. These results reveal an interplay of ferroic properties and chemical segregation on the optoelectronic performance of hybrid organic–inorganic perovskites, and offer an exploratory path to improving functional devices.

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Liu Y , Collins L, Proksch R, Kim S, Watson BR, Doughty B et al. Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite Nature Materials. 2018 Nov 1;17(11):1013-1019. doi: 10.1038/s41563-018-0152-z

Chemical nature of ferroelastic twin domains in CH ₃ NH ₃ PbI ₃ perovskite

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