A highly sensitive piezoresistive sensor with interlocked graphene microarrays for meticulous monitoring of human motions
A highly sensitive piezoresistive sensor with interlocked graphene microarrays for meticulous monitoring of human motions
复制标题
具有互锁石墨烯微阵列的高灵敏度压阻传感器，可精确监测人体运动
DOI：
10.1039/d0tc02539a
复制
发表时间：
2020-09-07
影响因子：
6.4
通讯作者：
Wu, Huaping
中科院分区：
文献类型：
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作者：
Cheng, Lin;Qian, Wei;Wu, Huaping
高灵敏度、短响应时间的柔性传感器在医疗诊断和健康监测等领域有着广泛的应用前景，因此受到了人们的广泛关注。在这里，我们展示了一个灵活的压阻式传感器的设计的基础上互锁的石墨烯微阵列上的柔性基板。该传感器通过微操作改变石墨烯微阵列的接触方式来显示可调节的压阻，这赋予传感器期望的压缩灵敏度（10.41 kPa-1，10000个加载-卸载循环）。 特别是，该传感器的快速响应特性允许通过明显改变互锁石墨烯微阵列之间的接触面积来细致地检测来自各种人体运动的复杂刺激，与具有双层石墨烯膜的平面传感器和单个微阵列传感器相比，突出了其在可穿戴医疗系统中的潜在应用，以进行更全面和准确的分析。
The development of flexible sensors with high sensitivity and a short response time has received great attention due to their potential applications in medical diagnosis and health monitoring. Herein, we demonstrate the design of a flexible piezoresistive sensor based on interlocked graphene microarrays on a flexible substrate. This sensor displays adjustable piezoresistance by changing the contact way of the graphene microarrays via micromanipulation, which endows the sensor with desirable compression sensitivity (10.41 kPa−1, 10 000 loading–unloading cycles). In particular, the fast-response characteristic of this sensor allows meticulous detection of complicated stimuli from various human motions by obviously changing the contact areas between the interlocked graphene microarrays when compared with a planar sensor with double-layered graphene films and a single microarray sensor, highlighting its potential application in wearable healthcare systems for more comprehensive and accurate analysis.