Ultra-flexible graphene/nylon/PDMS coaxial fiber-shaped multifunctional sensor  

作　　者：Peddathimula Puneetha Siva Pratap Reddy Mallem Sung Cheol Park Seoha Kim Dong Hun Heo Cheol Min Kim Jaesool Shim Sung Jin An Dong-Yeon Lee Kwi-Il Park 

机构地区：[1]Department of Robotics and Intelligent Machine Engineering/College of Mechanical and IT Engineering,Yeungnam University,Gyeongsan 38541,Republic of Korea [2]School of Materials Science and Engineering,Kyungpook National University,Daegu 41566,Republic of Korea [3]Advanced Material Research Center,Kumoh National Institute of Technology,Gumi 39177,Republic of Korea [4]School of Mechanical Engineering,Yeungnam University,Gyeongsan 38541,Republic of Korea [5]Department of Materials Science and Engineering,Kumoh National Institute of Technology,Gumi 39177,Republic of Korea

出　　处：《Nano Research》2023年第4期5541-5547,共7页纳米研究（英文版）

基　　金：The study was supported by the National Research Foundation of Korea(NRF)funded by the Ministry of Science(Nos.2022R1I1A1A01064248,2021R1A4A2001658,and 2022R1A2C1003853);the Korea Innovation Foundation(INNOPOLIS)grant funded by the Korea government(MIST)(No.2020-DD-UP-0278);partially supported by the National Research Foundation of Korea grant funded by the Korea Government(MSIP)(No.NRF-2018R1A6A1A03025761).

摘　　要：The development of flexible and wearable devices is mainly required for tactile sensing;as such devices can adapt to complicated nonuniform surfaces,they can be applied to the human body.Nevertheless,it remains necessary to simultaneously achieve small-scale,portable,and stable developments in such devices.Thus,this work aims at fabricating a novel,lightweight,ultra-flexible,and fiber-shaped coaxial structure with a diameter of 0.51 mm using polydimethylsiloxane/graphene/nylon material,based on piezoresistive and triboelectric principles.The piezoresistive-based robotic-hand-controlled sensor thus realized exhibits a response time of 120 ms and a fast recovery time of 55 ms.Further,the piezoresistive-based sensors effectively feature whisker/joystick-guided behaviors and also sense the human finger contact.Owing to the triboelectric-based selfpowered nanogenerator behavior,the resulting sensor can convert mechanical motion into electrical energy,without adversely affecting human organs.Moreover,this triboelectric-based human finger sensor can be operated under different bending modes at specific angles.Notably,this multifunctional sensor is cost-effective and suitable for various applications,including robotichand-controlled operations in medical surgery,whisker/joystick motions in lightweight drone technology,and navigation with highsensitivity components.

关 键 词：extremely lightweight ultra-flexible piezoresistive/triboelectric sensor HUMAN-MACHINE WHISKER 

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]