DataVXAdvanced MaterialsPaper
journal article·2018-05Open access

Organohalide Perovskites: Real‐Time Observation of Order‐Disorder Transformation of Organic Cations Induced Phase Transition and Anomalous Photoluminescence in Hybrid Perovskites (Adv. Mater. 22/2018)

Bin Yang, Wenmei Ming, Mao‐Hua Du, Jong K. Keum, Alexander A. Puretzky, Christopher M. Rouleau, Jinsong Huang, David B. Geohegan, Xiaoping Wang, Kai Xiao

Advanced Materials· Volume 30· Issue 22
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Source abstract

Abstract

In article number 1705801, Xiaoping Wang, Kai Xiao, and co-workers describe real-time, in situ temperaturedependent neutron-diffraction/photoluminescence measurements that reveal an order-to-disorder transformation of the organic cation MA+ with increasing temperature, at the molecular level, in a hybrid organic–inorganic perovskite, MAPbBr3, which leads to an anomalous photoluminescence enhancement due to reduced nonradiative recombination.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications

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Affiliations

College of Materials Science and Engineering Key Laboratory for Micro‐Nano Physics and Technology of Hunan Province Hunan University Changsha 410082 China

Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge TN 37831 USA

Materials Science & Technology Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA

Neutron Scattering Division Neutron Sciences Directorate Oak Ridge National Laboratory Oak Ridge TN 37831 USA

Department of Mechanical and Materials Engineering University of Nebraska‐Lincoln Lincoln NE 68503 USA

References

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