Geopolymer-Encapsulated Cesium Lead Bromide Perovskite Nanocrystals for Potential Display Applications

Lead halide perovskite nanocrystals (LHP NCs) featuring tunable band structures and narrow-band emissions are promising candidates for many optoelectronic applications. However, bare LHP NCs undergo rapid decomposition upon exposure to ambient conditions owing to their inherent instability and high...

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Bibliographic Details
Published inACS applied nano materials Vol. 3; no. 12; pp. 11695 - 11700
Main Authors Zhao, Shengjian, Fu, Shuai, He, Peigang, Cui, Jingyi, Yu, Xiaoqing, Liang, Jianshu, Duan, Xiaoming, Chen, Dongcheng, Bonn, Mischa, Wang, Hai I, Jia, Dechang, Yang, Zhihua, Zhou, Yu
Format Journal Article
LanguageEnglish
Published American Chemical Society 24.12.2020
Subjects
geopolymer
in situ grown
encapsulation
cesium lead halide perovskite nanocrystals
one-step synthesis
stability
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Summary:Lead halide perovskite nanocrystals (LHP NCs) featuring tunable band structures and narrow-band emissions are promising candidates for many optoelectronic applications. However, bare LHP NCs undergo rapid decomposition upon exposure to ambient conditions owing to their inherent instability and high sensitivity to external stimuli. In this work, we propose a facile one-step synthesis of stable LHP NCs–geopolymer composites, where Cs LHP NCs are in situ grown and encapsulated in an inorganic framework. This synthetic strategy not only allows the convenient production of Cs LHP NCs with tunable emission for potential display applications but also substantially improves their stability.
ISSN:2574-0970
2574-0970
DOI:10.1021/acsanm.0c02436