An ultrasensitive and reversible fluorescence sensor of humidity using perovskite CH3NH3PbBr3

被引：151

作者：

Xu, Wei ^{[1
,2
]}

Li, Feiming ^{[1
,2
]}

Cai, Zhixiong ^{[1
,2
]}

Wang, Yiru ^{[1
,2
]}

Luo, Feng ^{[3
]}

Chen, Xi ^{[1
,2
,4
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Coll Chem & Chem Engn, MOE Key Lab Spectrochem Anal & Instrumentat, Xiamen 361005, Peoples R China

[3] Fujian Res Inst Metr Sci, Fuzhou 350003, Peoples R China

[4] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 41期

基金：

中国国家自然科学基金;

关键词：

HALIDE; MOISTURE;

D O I：

10.1039/c6tc01075j

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：9651 / 9655

页数：5

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