A piezo-resistive graphene strain sensor with a hollow cylindrical geometry
A piezo-resistive graphene strain sensor with a hollow cylindrical geometry
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DOI：
10.1016/j.mseb.2017.02.012
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发表时间：
2017-05-01
影响因子：
3.6
通讯作者：
Takeda, Masanori
中科院分区：
文献类型：
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作者：
Nakamura, Atsushi;Hamanishi, Toshiki;Takeda, Masanori
我们提出了一种电阻型应变传感器，由中空管状石墨烯纤维（TGFs）与二甲基聚硅氧烷（PDMS）涂层毫米级应变/弯曲检测应用。通过化学气相沉积（CVD）在Ni丝上生长石墨烯膜来合成TGF。TGFs基本上是由PDMS涂层支撑的没有边缘的连续折叠的几层石墨烯膜，保持圆柱形管。与多壁碳纳米管（MWCNT）/聚二甲基硅氧烷（PDMS）复合材料（CNTCs）相比，研究了其传感性能，并对其机理进行了探讨。在应变计因子方面，由TGF制成的传感器估计在34.3-48.9的范围内对抗8%的拉伸应变。为了进行可行性研究，我们展示了通过手指关节上的弯曲角度检测的人手指监测。(C)2017 Elsevier B. V.版权所有。
We propose a resistance-type strain sensor consists of hollow tubing graphene fibers (TGFs) with dimethylpolysiloxane (PDMS) coating for millimeters-scale strain/bending detection applications. The TGFs were synthesized via graphene films grown on Ni wire by chemical vapor deposition (CVD). The TGFs are fundamentally folded continuous few-layered graphene films without edges maintained cylindrical tube supported by PDMS coating. Sensing properties were studied comparing with a multi-wall carbon nanotube (MWCNT)/PDMS composites (CNTCs) and the mechanism were discussed. In terms of the gauge factor, the sensor made of TGF is estimated to be in the range of 34.3-48.9 against 8% tensile strain. For a feasibility study, we demonstrate the human finger monitoring by means of bending angle detection on a finger joint.(C) 2017 Elsevier B.V. All rights reserved.