Non-stoichiometric hybrid halide perovskite film for gaseous NH3 and HCl sensing

Guishun Li; Guangning Hou; Xinghan Zhang; Chongyu Yu; Dianrong Han; Chengbin Jing; Junhao Chu

doi:10.1039/D3NJ02003G

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Non-stoichiometric hybrid halide perovskite film for gaseous NH₃ and HCl sensing†

Guishun Li,^a Guangning Hou,^b Xinghan Zhang,^a Chongyu Yu,^a Dianrong Han,^a Chengbin Jing

*^b and Junhao Chu^b

Author affiliations

* Corresponding authors

^a School of Physics and Information Engineering, Jiangsu Second Normal University, Nanjing 211200, China

^b Engineering Research Center for Nanophotonics and Advanced Instrument of Ministry of Education; Key Laboratory of Polar Materials and Devices (Ministry of Education); School of Physics and Electronic Science, East China Normal University, Shanghai 201100, China
E-mail: cbjing@ee.ecnu.edu.cn

Abstract

We report the first use of the non-stoichiometric perovskite MAPbI₃ film for both NH₃ and HCl detection depending on different changes in the trend of the film resistance, in which moderate excess PbI₂ can enhance the sensing performance, due to the highly active PbI-terminated surface of MAPbI₃ crystals with abundant iodine vacancies.

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Article information

DOI: https://doi.org/10.1039/D3NJ02003G
Article type: Communication
Submitted: 01 May 2023
Accepted: 14 Jun 2023
First published: 16 Jun 2023

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New J. Chem., 2023,47, 12541-12545

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Non-stoichiometric hybrid halide perovskite film for gaseous NH₃ and HCl sensing

G. Li, G. Hou, X. Zhang, C. Yu, D. Han, C. Jing and J. Chu, New J. Chem., 2023, 47, 12541 DOI: 10.1039/D3NJ02003G

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