Polypyrrole-Modified Tin Disulfide Nanoflower-Based Quartz Crystal Microbalance Sensor for Humidity Sensing

被引：26

作者：

Zhang, Dongzhi ^{[1
]}

Wang, Dongrui ^{[1
]}

Wang, Dongyue ^{[1
]}

Wu, Zhenling ^{[1
]}

机构：

[1] China Univ Petr East China, Coll Informat & Control Engn, Minist Educ, Key Lab Unconvent Oil & Gas Dev, Qingdao 266580, Shandong, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2019年 / 19卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Polypyrrole; quartz crystal microbalance; humidity sensor; GRAPHENE OXIDE; PERFORMANCE; FABRICATION; NANOPARTICLES; HYSTERESIS; PROPERTY;

D O I：

10.1109/JSEN.2019.2926318

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, quartz crystal microbalance (QCM) humidity sensors based on polypyrrole (PPy) modified tin disulfide (SnS2) nanocomposite have been fabricated. The morphology and composition of the PPy/SnS2 nanocomposite film were examined by means of SEM and TEM. The hydrophilicity of the PPy/SnS2 nanocomposite film sensor was verified by the contact angle experiment. The humidity sensing characteristics of the PPy/SnS2 nanocomposite sensor was studied at room temperature. The experimental results illustrated that the PPy/SnS2 nanocomposite coated QCM sensor was very sensitive to humidity and demonstrated high sensitivity, short response time, and excellent repeatability, which was surpassed the pure PPy and pure SnS2. The Langmuir adsorption model is used to explain the humidity sensing mechanism of PPy/SnS2 based QCM sensor. The enhanced humidity sensing properties are attributed to the nanostructure and hydrophilicity of the PPy/SnS2 nanocomposite.

引用

页码：9166 / 9171

页数：6

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