Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement

Silver nanowire (AgNW)-coated thin films are widely proposed for soft electronics application due to their good conductivity, transparency and flexibility. Here, we studied the microwave welding of AgNW-based soft electrodes for conductivity enhancement. The thermal effect of the microwave to AgNWs...

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Main Authors: Meng Zhang, Songjia Han, Zhi-Yang Xuan, Xiaohui Fang, Xiaoming Liu, Wu Zhang, Hui-Jiuan Chen
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/12/6/618
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author Meng Zhang
Songjia Han
Zhi-Yang Xuan
Xiaohui Fang
Xiaoming Liu
Wu Zhang
Hui-Jiuan Chen
author_facet Meng Zhang
Songjia Han
Zhi-Yang Xuan
Xiaohui Fang
Xiaoming Liu
Wu Zhang
Hui-Jiuan Chen
author_sort Meng Zhang
collection DOAJ
description Silver nanowire (AgNW)-coated thin films are widely proposed for soft electronics application due to their good conductivity, transparency and flexibility. Here, we studied the microwave welding of AgNW-based soft electrodes for conductivity enhancement. The thermal effect of the microwave to AgNWs was analyzed by dispersing the nanowires in a nonpolar solution, the temperature of which was found to be proportional with the nanowire diameters. AgNWs were then coated on a thin film and welded under microwave heating, which achieved a film conductivity enhancement of as much as 79%. A microwave overheating of AgNWs, however, fused and broke the nanowires, which increased the film resistance significantly. A soft electrode was finally demonstrated using the microwave-welded AgNW thin film, and a 1.13 µA/mM sensitivity was obtained for glucose sensing. Above all, we analyzed the microwave thermal effect on AgNWs to provide a guidance to control the nanowire welding effect, which can be used for film conductivity enhancement and applied for soft and bio-compatible electrodes.
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spelling doaj.art-fd65b14c50d94741a0564b3ecd43229a2023-11-21T21:36:12ZengMDPI AGMicromachines2072-666X2021-05-0112661810.3390/mi12060618Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity EnhancementMeng Zhang0Songjia Han1Zhi-Yang Xuan2Xiaohui Fang3Xiaoming Liu4Wu Zhang5Hui-Jiuan Chen6Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510006, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510006, ChinaCollege of Physical and Material Engineering, Guangzhou University, Guangzhou 510006, ChinaCollege of Physics and Electronic Information, Anhui Normal University, Wuhu 241003, ChinaCollege of Physical and Material Engineering, Guangzhou University, Guangzhou 510006, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510006, ChinaSilver nanowire (AgNW)-coated thin films are widely proposed for soft electronics application due to their good conductivity, transparency and flexibility. Here, we studied the microwave welding of AgNW-based soft electrodes for conductivity enhancement. The thermal effect of the microwave to AgNWs was analyzed by dispersing the nanowires in a nonpolar solution, the temperature of which was found to be proportional with the nanowire diameters. AgNWs were then coated on a thin film and welded under microwave heating, which achieved a film conductivity enhancement of as much as 79%. A microwave overheating of AgNWs, however, fused and broke the nanowires, which increased the film resistance significantly. A soft electrode was finally demonstrated using the microwave-welded AgNW thin film, and a 1.13 µA/mM sensitivity was obtained for glucose sensing. Above all, we analyzed the microwave thermal effect on AgNWs to provide a guidance to control the nanowire welding effect, which can be used for film conductivity enhancement and applied for soft and bio-compatible electrodes.https://www.mdpi.com/2072-666X/12/6/618Ag nanowiresmicrowave heatingthermal weldingglucose sensing
spellingShingle Meng Zhang
Songjia Han
Zhi-Yang Xuan
Xiaohui Fang
Xiaoming Liu
Wu Zhang
Hui-Jiuan Chen
Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement
Micromachines
Ag nanowires
microwave heating
thermal welding
glucose sensing
title Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement
title_full Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement
title_fullStr Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement
title_full_unstemmed Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement
title_short Study of Microwave-Induced Ag Nanowire Welding for Soft Electrode Conductivity Enhancement
title_sort study of microwave induced ag nanowire welding for soft electrode conductivity enhancement
topic Ag nanowires
microwave heating
thermal welding
glucose sensing
url https://www.mdpi.com/2072-666X/12/6/618
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