"Electron Microscopy for Materials Science, University of Antwerp, Antwerp, Belgium Biao Yuan, Christoph Hofer, Chuang Gao, Tamazouzt Chennit & Timothy J. Pennycook Center for Electron Microscopy, South China University of Technology, Guangzhou, China Biao Yuan & Yu Han School of Emergent Soft Matter, South China University of Technology, Guangzhou, China Biao Yuan & Yu Han State Key Laboratory of Quantum Functional Materials & Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai, China Zeyu Wang, Hongsheng Shi, Xiaoyan Wu & Yi Yu"
"B.Y. and T.J.P. conceived the project and designed the experiments, which B.Y. carried out and analysed. B.Y., Z.W., X.W. and Y.Y. performed iterative ptychography. S.Z. and L.D. synthesized the perovskite. C.H. and C.G. helped with the 4D-STEM data acquisition and processing. T.C. and H.S. helped with the simulations. B.Y. and T.J.P. wrote the manuscript. Y.H. assisted in editing the paper. All of the authors read and reviewed the paper."
Biao Yuan and Timothy J. Pennycook conceived the project and designed the experiments; Biao Yuan executed experiments and performed analysis. Iterative ptychography was performed by Biao Yuan, Zeyu Wang, Xiaoyan Wu, and Yi Yu. Perovskite synthesis was carried out by Shuchen Zhang and Letian Dou. Christoph Hofer and Chuang Gao assisted with 4D-STEM data acquisition and processing. Tamazouzt Chennit and Hongsheng Shi supported simulations. Multiple institutions across Belgium, China, and the United States contributed facilities and expertise, including electron microscopy centers and materials science and chemistry laboratories. Correspondence directed to Letian Dou, Yi Yu, or Timothy J. Pennycook.
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