压阻效应
材料科学
石墨烯
纳米技术
电子皮肤
纳米线
可穿戴计算机
软机器人
电极
光电子学
计算机科学
嵌入式系统
机器人
人工智能
物理化学
化学
作者
Yangzhi Zhu,Martin C. Hartel,Ning Yu,Pamela Rosario Garrido,Sanggon Kim,Junmin Lee,Praveen Bandaru,Shenghan Guan,Haisong Lin,Sam Emaminejad,Natan Roberto de Barros,Samad Ahadian,Han‐Jun Kim,Wujin Sun,Vadim Jucaud,Mehmet R. Dokmeci,Paul S. Weiss,Ruoxue Yan,Ali Khademhosseini
标识
DOI:10.1002/smtd.202100900
摘要
Abstract Wearable piezoresistive sensors are being developed as electronic skins (E‐skin) for broad applications in human physiological monitoring and soft robotics. Tactile sensors with sufficient sensitivities, durability, and large dynamic ranges are required to replicate this critical component of the somatosensory system. Multiple micro/nanostructures, materials, and sensing modalities have been reported to address this need. However, a trade‐off arises between device performance and device complexity. Inspired by the microstructure of the spinosum at the dermo epidermal junction in skin, a low‐cost, scalable, and high‐performance piezoresistive sensor is developed with high sensitivity (0.144 kPa ‐1 ), extensive sensing range ( 0.1–15 kPa), fast response time (less than 150 ms), and excellent long‐term stability (over 1000 cycles). Furthermore, the piezoresistive functionality of the device is realized via a flexible transparent electrode (FTE) using a highly stable reduced graphene oxide self‐wrapped copper nanowire network. The developed nanowire‐based spinosum microstructured FTEs are amenable to wearable electronics applications.
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