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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)
Author(s) -
Yang Bin,
Ming Wenmei,
Du MaoHua,
Keum Jong K.,
Puretzky Alexander A.,
Rouleau Christopher M.,
Huang Jinsong,
Geohegan David B.,
Wang Xiaoping,
Xiao Kai
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201870158
Subject(s) - photoluminescence , materials science , perovskite (structure) , transformation (genetics) , phase transition , phase (matter) , diffraction , order (exchange) , analytical chemistry (journal) , condensed matter physics , crystallography , optics , optoelectronics , chemistry , organic chemistry , physics , biochemistry , finance , economics , gene
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, MAPbBr 3 , which leads to an anomalous photoluminescence enhancement due to reduced nonradiative recombination.