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Issue 41, 2016
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An ultrasensitive and reversible fluorescence sensor of humidity using perovskite CH3NH3PbBr3

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Abstract

An organic–inorganic hybrid fluorescent perovskite, CH3NH3PbBr3, was synthesized by a grinding method, and applied for humidity sensing. Its strong fluorescence at 530 nm could be linearly quenched by a humidity increase from 7 to 98%. Coupled with a red-emitting reference dye, 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin, a colorimetric humidity sensor was produced using the perovskite. The sensor appeared to be sensitive to increased humidity by displaying a color change from green to red, or vice versa, with good reversibility. The proposed approach should provide a new strategy in the design of sensitive and applicable humidity sensors.

Graphical abstract: An ultrasensitive and reversible fluorescence sensor of humidity using perovskite CH3NH3PbBr3

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Publication details

The article was received on 14 Mar 2016, accepted on 22 Sep 2016 and first published on 26 Sep 2016


Article type: Communication
DOI: 10.1039/C6TC01075J
Citation: J. Mater. Chem. C, 2016,4, 9651-9655
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    An ultrasensitive and reversible fluorescence sensor of humidity using perovskite CH3NH3PbBr3

    W. Xu, F. Li, Z. Cai, Y. Wang, F. Luo and X. Chen, J. Mater. Chem. C, 2016, 4, 9651
    DOI: 10.1039/C6TC01075J

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