Multiscale and hierarchical wrinkle enhanced graphene/Ecoflex sensors integrated with human-machine interfaces and cloud-platform  

作　　者：Jian Zhou Xinxin Long Jian Huang Caixuan Jiang Fengling Zhuo Chen Guo Honglang Li YongQing Fu Huigao Duan 

机构地区：[1]College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,China [2]National Center for Nanoscience and Technology,Beijing 100190,China [3]Faculty of Engineering and Environment,Northumbria University,Newcastle upon Tyne NE18ST,United Kingdom [4]Greater Bay Area Institute for Innovation,Hunan University,Guangzhou 511300 Guangdong Province,China

出　　处：《npj Flexible Electronics》2022年第1期558-568,共11页npj-柔性电子（英文）

基　　金：supported by the NSFC (No.52075162);The Program of New and Hightech Industry of Hunan Province (2020GK2015);The Joint Fund Project of the Ministry of Education,The Excellent Youth Fund of Hunan Province (2021JJ20018);the Key Research&Development Program of Guangdong Province (2020B0101040002);the Natural Science Foundation of Changsha (kq2007026);the Engineering Physics and Science Research Council of UK (EPSRC EP/P018998/1);International Exchange Grant (IEC/NSFC/201078)through Royal Society and the NSFC.

摘　　要：Current state-of-the-art stretchable/flexible sensors have received stringent demands on sensitivity,flexibility,linearity,and widerange measurement capability.Herein,we report a methodology of strain sensors based on graphene/Ecoflex composites by modulating multiscale/hierarchical wrinkles on flexible substrates.The sensor shows an ultra-high sensitivity with a gauge factor of 1078.1,a stretchability of 650%,a response time of~140 ms,and a superior cycling durability.It can detect wide-range physiological signals including vigorous body motions,pulse monitoring and speech recognition,and be used for monitoring of human respirations in real-time using a cloud platform,showing a great potential for the healthcare internet of things.Complex gestures/sign languages can be precisely detected.Human-machine interface is demonstrated by using a sensor-integrated glove to remotely control an external manipulator to remotely defuse a bomb.This study provides strategies for real-time/long-range medical diagnosis and remote assistance to perform dangerous tasks in industry and military fields.

关 键 词：HIERARCHICAL DURABILITY CYCLING 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TQ127.11[自动化与计算机技术—控制科学与工程]