4.7 Article

Flexible Piezoresistive Pressure Sensor Using Wrinkled Carbon Nanotube Thin Films for Human Physiological Signals

期刊

ADVANCED MATERIALS TECHNOLOGIES
卷 3, 期 1, 页码 -

出版社

WILEY
DOI: 10.1002/admt.201700158

关键词

carbon nanotubes; flexible; human physiological signals; nanowrinkles; pressure sensors

资金

  1. Broadcom Foundation
  2. National Institute of Health (NIH) Director's New Innovator Award Program [1DP2OD007283]

向作者/读者索取更多资源

Highly sensitive and flexible components are essential for applications in wearable electronics. Using low-cost and rapid prototyping methods, piezoresistive pressure sensors are fabricated using shrink-film, a shape memory polymer that retracts upon heat, to introduce wrinkling in carbon nanotube thin films, which improves both elasticity and pressure sensitivity. The wrinkles not only provide strain relief, but it also improves pressure sensitivity by 12 800 fold with a response time of less than 20 ms. The improved sensitivity is due to the surface roughness of the wrinkles. When two wrinkled electrodes are coupled together, the number of electrical contact points changes upon actuation thereby changing the electrical resistivity. This study then demonstrates wearable applications, such as pulsatile blood flow monitoring and voice detection using these sensitive pressure sensors.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据