电容感应
导线
导电体
材料科学
自愈
电极
纳米技术
数码产品
电介质
软机器人
光电子学
复合材料
电气工程
工程类
执行机构
病理
物理化学
化学
医学
替代医学
作者
Panpan Jiang,Haili Qin,Jing Dai,Shu‐Hong Yu,Huai‐Ping Cong
出处
期刊:Nano Letters
[American Chemical Society]
日期:2021-11-06
卷期号:22 (3): 1433-1442
被引量:23
标识
DOI:10.1021/acs.nanolett.1c03618
摘要
Skin-mountable capacitive-type strain sensors with great linearity and low hysteresis provide inspiration for the interactions between human and machine. For practicality, high sensing performance, large stretchability, and self-healing are demanded but limited by stretchable electrode and dielectric and interfacial compatibility. Here, we demonstrate an extremely stretchable and self-healing conductor via both hard and soft tactics that combine conductive nanowire assemblies with double dynamic network based on π-π attractions and Ag-S coordination bonds. The obtained conductor outperforms the reported stretchable conductors by delivering an elongation of 3250%, resistance change of 223% at 2000% strain, high durability, and multiresponsive self-healability. Especially, this conductor accommodates large strain of 1500% at extremely knotted and twisted deformations. By sandwiching hydrogel conductors with a newly developed dielectric, ultrahigh stretchability and omni-healability are simultaneously achieved for the first time for a capacitive strain sensor inspired by metal-thiolate coordination chemistry, showing great potentials in wearable electronics and soft robotics.
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