Flexible Strain Sensors with Ultra-High Sensitivity and Wide Range Enabled by Crack-Modulated Electrical Pathways

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外文标题：Flexible Strain Sensors with Ultra-High Sensitivity and Wide Range Enabled by Crack-Modulated Electrical Pathways

外文摘要：This study presents a breakthrough in flexible strain sensor technology with the development of an ultra-high sensitivity and wide-range sensor,addressing the critical challenge of reconciling sensitivity with measurement range.Inspired by the structure of bamboo slips,we introduce a novel approach that utilises liquid metal to modulate the electrical pathways within a cracked platinum fabric electrode.The result-ing sensor demonstrates a gauge factor greater than 108 and a strain measurement capability exceeding 100％.The integration of patterned liquid metal enables customisable tuning of the sen-sor's response,while the porous fabric structure ensures superior comfort and air permeability for the wearer.Our design not only optimises the sensor's performance but also enhances the electrical stability that is essential for practical applications.Through systematic inves-tigation,we reveal the intrinsic mechanisms governing the sensor's response,offering valuable insights for the design of wearable strain sensors.The sensor's exceptional performance across a spectrum of applications,from micro-strain to large-strain detection,highlights its potential for a wide range of real-world uses,demonstrating a significant advancement in the field of flexible electronics.

外文关键词：

Flexible strain sensorFabricCrackResponse regulationEpidermal device

作者：

Yunzhao Bai、Yunlei Zhou、Xuanyu Wu、Mengfei Yin、Liting Yin、Shiyuan Qu、Fan Zhang、Kan Li、YongAn Huang

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作者单位：

State Key Laboratory of Intelligent Manufacturing Equipment and Technology,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China

Flexible Electronics Research Center,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China

Hangzhou Institute of Technology,Xidian University,Hangzhou 311200,People's Republic of China

School of Mechano-Electronic Engineering,Xidian University,Xi'an 710071,People's Republic of China

Department of Aerospace and Mechanical Engineering,University of Southern California,Los Angeles,CA 90089,USA

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关键词：

Flexible strain sensor Fabric Crack Response regulation Epidermal device

出版年：

2025

DOI：

10.1007/s40820-024-01571-6

纳微快报(英文)

上海交通大学

纳微快报(英文)

ISSN：2311-6706

年,卷(期)：2025.17(3)