水下
仿生学
材料科学
数码产品
可穿戴计算机
标度系数
纳米技术
可穿戴技术
应变计
振动
可伸缩电子设备
制作
声学
计算机科学
电气工程
工程类
人工智能
嵌入式系统
复合材料
病理
地质学
物理
海洋学
替代医学
医学
作者
Linpeng Liu,Zhibin Jiao,Junqiu Zhang,Yuchen Wang,Changchao Zhang,Xiancun Meng,Xiaohu Jiang,Shichao Niu,Zhiwu Han,Luquan Ren
标识
DOI:10.1021/acsami.0c18818
摘要
There is currently a growing demand for flexible strain sensors with high performance and water repellency for various applications such as human motion monitoring, sweat or humidity detection, and certain underwater tests. Among these strain sensors, paper-based ones have attracted increasing attention because they coincide with the future development trend of environment-friendly electronic products. However, paper-based electronics are easy to fail when they encounter water and are thus unable to be applied to humid or underwater circumstances. Herein, based on a strategy of coupling bionics inspired by lotus leaf and scorpion, which exhibit superhydrophobic characteristics and ultrasensitive vibration-sensing capacity, respectively, a paper-based strain sensor with high sensitivity and water repellency is successfully fabricated. As a result, the strain sensor exhibits a gauge factor of 263.34, a high strain resolution (0.098%), a fast response time (78 ms), excellent stability over 12,000 cycles, and a water contact angle of 164°. Owing to the bioinspired structures and function mechanisms, the paper-based strain sensor is suitable to not only serve as regular wearable electronics to monitor human motions in real-time but also to detect subtle underwater vibrations, demonstrating its great potential for numerous applications like wearable electronics, water environmental protection, and underwater robots.
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