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All‐Inorganic CsPbBr 3 /Cs 4 PbBr 6 Perovskite/ZnO for Detection of NO with Enhanced Response and Low‐Work Temperature
Author(s) -
Wang Yindan,
Wang Zhenzhen,
Lin Pei,
Wu Di,
Shi Zhifeng,
Chen Xu,
Xu Tingting,
Wang Xinchang,
Tian Yongtao,
Li Xinjian
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202102051
Subject(s) - detection limit , nanorod , perovskite (structure) , heterojunction , response time , optoelectronics , chemistry , materials science , impurity , selectivity , nanotechnology , crystallography , chromatography , catalysis , organic chemistry , computer graphics (images) , computer science
High‐sensitive detection of NO is very important to protect environment and human health. In this study, the composites of ZnO nanorods and CsPbBr 3 /Cs 4 PbBr 6 particles are synthesized successfully and used as sensing materials for detection of NO, in which the as‐prepared samples exhibit ultra‐high response and excellent selectivity to NO at 50 °C. Toward 100 ppm NO, the response is up to about 2296. The samples can high‐sensitively detect 1 ppm NO with response of about 6, demonstrating a low detection limit. The high response of CsPbBr 3 /Cs 4 PbBr 6 /ZnO could be attributed to the multiple heterojunctions formed among three materials. The results demonstrated that the composites of CsPbBr 3 /Cs 4 PbBr 6 and ZnO should be a promising material for preparing the high‐sensitive NO sensors at low temperature.