All-graphene strain sensor on soft substrate
All-graphene strain sensor on soft substrate
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DOI：
10.1016/j.carbon.2017.02.058
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发表时间：
2017-05-01
期刊：
影响因子：
10.9
通讯作者：
Park, Wanjun
中科院分区：
文献类型：
--
作者：
Chun, Sungwoo;Choi, Yeonhoi;Park, Wanjun
我们提出了一种透明的、可拉伸的全石墨烯应变传感器，可以检测通过拉伸、弯曲和扭转引起的各种类型的应变。该传感器是通过引入单层石墨烯作为力传感材料，并将石墨烯薄片组成的导电膜作为电极制成的。由于独家使用柔性材料，完成的应变传感器是完全柔性的。在单层石墨烯上使用蛇形图案，传感器能够拉伸高达20%，具有高测量因子（42.2）。此外，该传感器还提供了双向响应的功能扩展。该传感器可以检测低至0.1%的无限小应变，相对电阻变化（δ R/R-0）类似于0.005。最后，成功地实现了弯曲和扭转引起的应变的灵敏检测。(C) 2017 Elsevier Ltd.版权所有。
We propose a transparent and stretchable all-graphene strain sensor that can detect various types of strain induced via stretching, bending, and torsion. The sensor is fabricated by introducing single-layer graphene as a force sensing material with a conductive film composed of graphene flake for the electrode. With the exclusive use of flexible materials, the completed strain sensor is fully flexible. Using a serpentine-shaped pattern for the single-layer graphene, the sensor is capable of stretching up to 20% with a high gauge factor (42.2). In addition, the sensor provides functional extension to bi-directional responses. This sensor can detect infinitesimal strain as low as 0.1% with a relative resistance change (Delta R/R-0) of similar to 0.005. Finally, sensitive detection of strains induced via bending and torsion are successfully demonstrated. (C) 2017 Elsevier Ltd. All rights reserved.