An ultra-sensitive and rapid response speed graphene pressure sensors for electronic skin and health monitoring
An ultra-sensitive and rapid response speed graphene pressure sensors for electronic skin and health monitoring
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用于电子皮肤和健康监测的超灵敏且快速响应速度的石墨烯压力传感器
DOI：
10.1016/j.nanoen.2016.02.053
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发表时间：
2016-05-01
期刊：
影响因子：
17.6
通讯作者：
Shen, Guozhen
中科院分区：
文献类型：
--
作者：
Lou, Zheng;Chen, Shuai;Shen, Guozhen
设计超灵敏、响应速度快、长期稳定的压力传感器是实现高性能电子皮肤的关键环节。在此，我们首次报道了将天然粘弹性材料P（VDF-TrFe）与导电材料rGO结合在一起的自组装3D薄膜平台的制造。值得注意的是，rgo封装P（VDF-TrFe）纳米纤维的模块化组装导致了高灵敏度的压阻压力传感器的制造，该传感器具有高灵敏度（15.6 kPa(-1)），低检测限（1.2 Pa）和工作电压（1 V）。100,000次循环下优异的长期稳定性和50hz下5ms的快速响应时间尤其令人着迷。此外，使用简单通用的程序，一个框架可以使集成传感器阵列平台易于作为高灵敏度的电子皮肤，用于绘制空间压力分布，监测人体生理信号，包括实时脉冲和肌肉运动。(C) 2016 Elsevier Ltd.版权所有。
Design of pressure sensors with ultra-sensitivity, rapid response speed and long-term stability is a key procedure to fulfill high performance electronic skins. Herein, we report the fabrication of a self-assembled 3D films platform that combines a natural viscoelastic property material P(VDF-TrFe) with an electrically conductive material rGO for the first time. Notably, modular assembly of the rGO-encapsulated P(VDF-TrFe) nanofibers led to the fabrication of a highly sensitive pizeoresistive pressure sensor which exhibited high sensitivity (15.6 kPa(-1)), low detection limit (1.2 Pa) and working voltage (1 V). The excellent long-term stability under 100,000 cycles and rapid response time of 5 ms at 50 Hz are particularly captivating. Besides, using the simple and versatile procedures, a framework to make integrated sensor array platforms easily can be used as highly sensitive electronic skins for mapping spatial pressure distribution, and monitoring the human physiological signals, including the real-time pulses and muscle movements. (C) 2016 Elsevier Ltd. All rights reserved.