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Flexible and Highly Sensitive Strain Sensors Fabricated by Pencil Drawn for Wearable Monitor

机译:用铅笔制造的柔性高灵敏应变传感器,用于可穿戴显示器

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摘要

Functional electrical devices have promising potentials in structural health monitoring system, human-friendly wearable interactive system, smart robotics, and even future multifunctional intelligent room. Here, a low-cost fabrication strategy to efficiently construct highly sensitive graphite-based strain sensors by pencil-trace drawn on flexible printing papers is reported. The strain sensors can be operated at only two batteries voltage of 3 V, and can be applied to variously monitoring microstructural changes and human motions with fast response/relaxation times of 110 ms, a high gauge factor (GF) of 536.6, and high stability > 10 000 bending-unbending cycles. Through investigation of service behaviors of the sensors, it is found that the microcracks occur on the surface of the pencil-trace and have a major influence on the functions of the strain sensors. These performances of the strain sensor attain and even surpass the properties of recent strain sensing devices with subtle design of materials and device architectures. The pen-on-paper (PoP) approach may further develop portable, environmentally friendly, and economical lab-on-paper applications and offer a valuable method to fabricate other multifunctional devices.
机译:功能性电气设备在结构健康监测系统,人性化的可穿戴交互系统,智能机器人技术乃至未来的多功能智能室中都具有广阔的发展潜力。在这里,报告了一种低成本的制造策略,可以通过在柔性印刷纸上绘制笔迹来有效地构造高灵敏度的基于石墨的应变传感器。应变传感器只能在两节3 V电池电压下工作,并且可以以110 ms的快速响应/松弛时间,536.6的高标称系数(GF)和高稳定性应用于各种监测微结构变化和人体运动的过程> 10000次弯曲-弯曲周期。通过调查传感器的使用行为,发现微裂纹出现在笔迹的表面上,并且对应变传感器的功能产生重大影响。通过对材料和设备架构的精妙设计,应变传感器的这些性能达到甚至超过了最新的应变传感设备的性能。纸上笔(PoP)方法可以进一步开发便携式,环保且经济的纸上实验室应用程序,并为制造其他多功能设备提供有价值的方法。

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  • 来源
    《Advanced Functional Materials》 |2015年第16期|2395-2401|共7页
  • 作者单位

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China;

    Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China|Univ Sci & Technol Beijing, Key Lab New Energy Mat & Technol, Beijing 100083, Peoples R China;

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