材料科学
电子皮肤
压力传感器
触觉传感器
纳米技术
碳纳米管
压阻效应
光电子学
计算机科学
人工智能
机器人
热力学
物理
作者
Daesik Kim,Dong Hoon Lee,Jinsu Yoon,Donghyo Hahm,Byeongmoon Lee,Eun‐Suok Oh,Geonhee Kim,Jiseok Seo,Hanul Kim,Yongtaek Hong
标识
DOI:10.1021/acsami.1c16166
摘要
Electronic skin (E-skin) based on tactile sensors has great significance in next-generation electronics such as biomedical application and artificial intelligence that requires interaction with humans. To mimic the properties of human skin, high flexibility, excellent sensing capability, and sufficient spatial resolution through high-level sensor integration are required. Here, we report a highly sensitive pressure sensor matrix based on a piezoresistive cellulose/single-walled carbon nanotube-entangled fiber network, which forms its own porous structure enabling a superior pressure sensor with a high sensitivity (9.097 kPa–1), a fast response speed (<2 ms), and orders of magnitude detection range with a detection limit of 1 Pa. Furthermore, the remarkable device expandability based on the ease of patterning and scalability allows easy implementation of a large-area pressure sensor matrix which has 2304 (48 × 48) pixels. Combined with a real-time pressure distribution monitoring system, a flexible 3D touch sensor that simultaneously displays plane coordinates and pressure information and a scanning device that detects the morphology of the soft body 3D surface are successfully demonstrated.
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