Hongxin Cai, Hang Yu, Lingling Yan, Lingli Wang, Qiang Hu, Xiude Tu
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引用次数: 0
Abstract
A series of novel humidity sensors (xBMZC@ZIF-8/Si-NPA) were constructed by using ionic liquid 1-butyl-3-methylimidazolium chloride (BMZC) modified ZIF-8 and silicon nanoporous pillar array (Si-NPA) as the sensing material and substrate, respectively. Encapsulation of BMZC within the ZIF-8 nanocage significantly enhanced the hydrophilicity of ZIF-8, thereby improving both sensor response and stability. Moreover, the unique nanochannel network structure of Si-NPA serves as an efficient pathway for water molecule transportation, enhancing response/recovery speed. The 30 wt% BMZC@ZIF-8/Si-NPA humidity sensor prepared with optimal BMZC modification exhibited an impedance responsivity of 7341.86% from 0%RH—75%RH, along with average response/recovery times of 6.1 s/10.4 s, demonstrating excellent repeatability and linearity characteristics. These findings highlight the potential applications for BMZC@ZIF-8/Si-NPA in humidity sensing.
期刊介绍：
Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.
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