摩擦电效应
材料科学
聚二甲基硅氧烷
电子皮肤
压阻效应
多孔性
电极
触觉传感器
纳米技术
基质(水族馆)
电压
生物医学工程
复合材料
真皮
表面光洁度
光电子学
计算机科学
人工智能
电气工程
解剖
工程类
机器人
物理化学
地质学
化学
海洋学
医学
作者
Haotian Chen,Liming Miao,Zongming Su,Yu Song,Mengdi Han,Xuexian Chen,Xiaoliang Cheng,Dongmin Chen,Haixia Zhang
出处
期刊:Nano Energy
[Elsevier]
日期:2017-10-01
卷期号:40: 65-72
被引量:118
标识
DOI:10.1016/j.nanoen.2017.08.001
摘要
Fingertip is the region with the largest density of mechanoreceptors in human body. Inspired by its complicated anatomical structure, we design a fingertip-like electronic skin (e-skin) that can simultaneously detect the movements from lateral and vertical directions. The device includes three parts that correspond to fingerprint, epidermis and dermis of the human being, respectively. The fabricated double spiral carbon nanotube-polydimethylsiloxane (CNT-PDMS) electrodes and substrate mimic the structure of fingerprint and epidermis, respectively. Based on triboelectrification effect, the double spiral CNT-PDMS electrodes can generate alternating voltage with different frequencies when sliding across different rough surfaces, which behaves like fast adapting (FA) in real skin. Porous CNT-PDMS is used for detecting pressure, mimicking the function of slow adapting (SA) and the structure of dermis. A cost efficient way to fabricated porous CNT-PDMS is adopted and it can modulate the porosity and resistance at the same time, which provides a way to modulate its sensitivity. With the help of both sliding sensing and pressure sensing, this device can execute many complicated tasks such as differentiating roughness of surfaces and holding-releasing execution, which greatly expands the application fields of e-skin.
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