Issue 46, 2020, Issue in Progress
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RSC Advances

Rapid preparation of a Nafion/Ag NW composite film and its humidity sensing effect†

Yanjie Wang, ORCID logo *ad   Jiale Wang,a   Muyu Hao,a   Bo Li,*b   Zicai Zhu,b   Xiaofan Gouc  and  Lijie Li ORCID logo d  

* Corresponding authors

a College of Mechanical and Electrical Engineering, Hohai University, Changzhou Campus, Changzhou, China
E-mail: yjwang@hhu.edu.cn

b Shaanxi Key Lab for Intelligent Robots, State Key Laboratory for Manufacturing System Engineering, College of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, China
E-mail: liboxjtu@xjtu.edu.cn

c College of Mechanics and Materials, Hohai University, Nanjing, China

d Multidisciplinary Nanotechnology Centre, College of Engineering, Swansea University, Swansea, UK

Abstract

In this study, we present a novel humidity-responsive composite film based on the integration of two silver nanowire (Ag NW) layers deposited via the physical deposition process with an ionomer (Nafion) layer sandwiched between them. As a result of the ion migration inside the ionomer, the humidity to electrical transduction displays a fast response and high sensitivity in comparison with previous research. Meanwhile, the effects of the humidity gradient on the sensing response of the Nafion/Ag NWs composite film were investigated. Specifically, a higher humidity enables a faster response rate but a slower recovery rate, as compared to a lower humidity level. In addition, breathing tests are performed, which verified the opportunities for the design and fabrication of high-performance sensors for environment and biophysical monitoring. This research also revealed the potential applications in VOC (volatile organic compound) detection.

Graphical abstract: Rapid preparation of a Nafion/Ag NW composite film and its humidity sensing effect

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Article information

DOI
https://doi.org/10.1039/D0RA01650K
Article type
Paper
Submitted
21 Feb 2020
Accepted
29 Jun 2020
First published
22 Jul 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 27447-27455

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Rapid preparation of a Nafion/Ag NW composite film and its humidity sensing effect

Y. Wang, J. Wang, M. Hao, B. Li, Z. Zhu, X. Gou and L. Li, RSC Adv., 2020, 10, 27447 DOI: 10.1039/D0RA01650K

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