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A low-cost, printable, and stretchable strain sensor based on highly conductive elastic composites with tunable sensitivity for human motion monitoring

机译:一种低成本,可印刷,可拉伸的应变传感器,基于高导电弹性复合材料,具有可调节的灵敏度,可用于人体运动监测

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摘要

Strain sensors with high stretchability,broad strain range,high sensitivity,and good reliability are desirable,owing to their promising applications in electronic skins and human motion monitoring systems.In this paper,we report a highperformance strain sensor based on printable and stretchable electrically conductive elastic composites.This strain sensor is fabricated by mixing silver-coated polystyrene spheres (PS@Ag) and liquid polydimethylsiloxane (PDMS) and screen-printed to a desirable geometry.The strain sensor exhibits fascinating comprehensive performances,including high electrical conductivity (1.65 x 104 S/m),large workable strain range (> 80%),high sensitivity (gauge factor of 17.5 in strain of 0%-10%,6.0 in strain of 10%-60% and 78.6 in strain of 60%-80%),inconspicuous resistance overshoot (< 15%),good reproducibility and excellent long-term stability (1,750 h at 85 ℃/85% relative humidity) for PS@Ag/PDMS-60,which only contains ~ 36.7 wt.% of silver.Simultaneously,this strain sensor provides the advantages of low-cost,simple,and large-area scalable fabrication,as well as robust mechanical properties and versatility in applications.Based on these performance characteristics,its applications in flexible printed electrodes and monitoring vigorous human motions are demonstrated,revealing its tremendous potential for applications in flexible and wearable electronics.
机译:由于其在电子皮肤和人体运动监测系统中的应用前景广阔,因此具有高拉伸性,宽应变范围,高灵敏度和良好可靠性的应变传感器是人们所希望的。本文报道了一种基于可印刷和可拉伸导电性的高性能应变传感器。应变传感器是通过将涂银的聚苯乙烯球(PS @ Ag)和液体聚二甲基硅氧烷(PDMS)混合并丝网印刷成理想的几何形状而制成的。应变传感器具有令人着迷的综合性能,包括高电导率(1.65 x 104 S / m),较大的工作应变范围(> 80%),高灵敏度(0%-10%应变的应变系数为17.5、10%-60%应变的应变系数为6.0和60%-80应变的应变系数为78.6 %),PS @ Ag / PDMS-60的电阻超调(<15%)不明显,重现性好,长期稳定性好(在85℃/ 85%相对湿度下为1,750 h),其中PS @ Ag / PDMS-60的含量仅为〜36.7 wt。%。银。 ain传感器具有低成本,简单和大面积可扩展制造的优点,以及强大的机械性能和应用多功能性。基于这些性能特征,展示了其在柔性印刷电极中的应用以及对人体剧烈运动的监控,揭示了其在柔性和可穿戴电子产品中的巨大潜力。

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  • 来源
    《纳米研究(英文版)》 |2018年第4期|1938-1955|共18页
  • 作者单位

    Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;

    Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;

    Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;

    Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;

    Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China;

    Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;

    Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;

    School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA;

    Department of Electronic Engineering, The Chinese University of Hong Kong, Hang Kong 999077, China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 eng
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  • 入库时间 2022-08-19 03:47:26
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