A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS

Abstract This paper presents a new flexible magnetic field sensor based on Ag nanowires and magnetic nanoparticles doped in polydimethylsiloxane (AgNWs & MNs-PDMS) with sandwich structure. The MNs act as the sensitive unit for magnetic field sensing in this work. Besides, the conductive networks...

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Main Authors: Qiang Zhang, Yi Du, Youyi Sun, Kai Zhuo, Jianlong Ji, Zhongyun Yuan, Wendong Zhang, Shengbo Sang
Format: Article
Language:English
Published: SpringerOpen 2019-01-01
Series:Nanoscale Research Letters
Subjects:
Online Access:http://link.springer.com/article/10.1186/s11671-018-2826-5
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author Qiang Zhang
Yi Du
Youyi Sun
Kai Zhuo
Jianlong Ji
Zhongyun Yuan
Wendong Zhang
Shengbo Sang
author_facet Qiang Zhang
Yi Du
Youyi Sun
Kai Zhuo
Jianlong Ji
Zhongyun Yuan
Wendong Zhang
Shengbo Sang
author_sort Qiang Zhang
collection DOAJ
description Abstract This paper presents a new flexible magnetic field sensor based on Ag nanowires and magnetic nanoparticles doped in polydimethylsiloxane (AgNWs & MNs-PDMS) with sandwich structure. The MNs act as the sensitive unit for magnetic field sensing in this work. Besides, the conductive networks are made by AgNWs during deformation. Magnetostriction leads to the resistance change of the AgNWs & MNs-PDMS sensors. Furthermore, the MNs increase the conductive paths for electrons, leading to lower initial resistance and higher sensitivity of the resulting sensor during deformation. A point worth emphasizing is that the interaction of the AgNWs and MNs plays irreplaceable role in magnetic field sensing, so the resistance change during stretching and shrinking was investigated. The flexible magnetic field sensor based on the mass ratio of MNs and AgNWs is 1:5 showed the highest sensitivity of 24.14 Ω/T in magnetic field sensing experiment. Finally, the magnetostrictive and piezoresistive sensing model were established to explore the mechanism of the sensor.
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spelling doaj.art-373ff0827d994bd18a60e9d652ef84ce2023-09-02T02:04:23ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2019-01-011411910.1186/s11671-018-2826-5A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMSQiang Zhang0Yi Du1Youyi Sun2Kai Zhuo3Jianlong Ji4Zhongyun Yuan5Wendong Zhang6Shengbo Sang7MicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyMicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyTechnology of Polymeric Composites of Shanxi Province, North University of ChinaMicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyMicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyMicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyMicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyMicroNano System Research Center, Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province & College of Information Engineering, Taiyuan University of TechnologyAbstract This paper presents a new flexible magnetic field sensor based on Ag nanowires and magnetic nanoparticles doped in polydimethylsiloxane (AgNWs & MNs-PDMS) with sandwich structure. The MNs act as the sensitive unit for magnetic field sensing in this work. Besides, the conductive networks are made by AgNWs during deformation. Magnetostriction leads to the resistance change of the AgNWs & MNs-PDMS sensors. Furthermore, the MNs increase the conductive paths for electrons, leading to lower initial resistance and higher sensitivity of the resulting sensor during deformation. A point worth emphasizing is that the interaction of the AgNWs and MNs plays irreplaceable role in magnetic field sensing, so the resistance change during stretching and shrinking was investigated. The flexible magnetic field sensor based on the mass ratio of MNs and AgNWs is 1:5 showed the highest sensitivity of 24.14 Ω/T in magnetic field sensing experiment. Finally, the magnetostrictive and piezoresistive sensing model were established to explore the mechanism of the sensor.http://link.springer.com/article/10.1186/s11671-018-2826-5NanomaterialsFlexible sensorMagnetic field detection
spellingShingle Qiang Zhang
Yi Du
Youyi Sun
Kai Zhuo
Jianlong Ji
Zhongyun Yuan
Wendong Zhang
Shengbo Sang
A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS
Nanoscale Research Letters
Nanomaterials
Flexible sensor
Magnetic field detection
title A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS
title_full A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS
title_fullStr A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS
title_full_unstemmed A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS
title_short A Flexible Magnetic Field Sensor Based on AgNWs & MNs-PDMS
title_sort flexible magnetic field sensor based on agnws mns pdms
topic Nanomaterials
Flexible sensor
Magnetic field detection
url http://link.springer.com/article/10.1186/s11671-018-2826-5
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