CNT@leather-based electronic bidirectional pressure sensor  

作　　者：CHEN Yuan Yuan XIE RuiJie ZOU BingHua LIU YiHan ZHANG Kang LI Sheng ZHENG Bing ZHANG WeiNa WU JianSheng HUO Feng 

机构地区：[1]Wei Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM),Nanjing Tech University(NanjingTech),Nanjing 211816,China

出　　处：《Science China(Technological Sciences)》2020年第10期2137-2146,共10页中国科学（技术科学英文版）

基　　金：the National Natural Science Foundation for Distinguished Young Scholars(Grant No.21625401);the National Natural Science Foundation of China(Grant Nos.21727808,21574065,21604038,21504043,21604040 and 51702155);the Jiangsu Provincial Founds for Natural Science Foundation(Grant Nos.BK20160975,BK20160981 and BK20170975);the Program for Outstanding Young Scholars from the Organization Department of the CPC Central Committee,the National Key Basic Research Program of China(Grant No.2015CB932200);the National Key R&D Program of China(Grant No.2017YFA0207201)。

摘　　要：The ability of perceiving external pressures and conducting corresponding signals is one of the important functions of flexible electronics,which has been widely studied in electronic skin,prosthetics,robotics,healthcare,human-machine interfaces,etc.Pressure sensor should not be limited to the detection of unidirectional pressure.Here,a leather-based electronic pressure sensor and corresponding arrays with bidirectional sensing capability are demonstrated.The sensor/arrays consisting of two pieces of stacked leather both modified with acidified carbon nanotubes(a-CNTs)can achieve multi-level response to pressure over a broad working range and sense pulling force opposite to pressure.With polyurethane mixed with ferriferrous oxide(Fe3O4)powder being applied to their upper surface,the resistive sensor/individual units of arrays can also detect the magnetic field because of the contactless pulling force generated by the magnetized Fe3O4.Being able to sense pressure,pulling force and magnetic field,the leather-based electronic bidirectional pressure sensor and corresponding arrays with good performance not only exhibit potential for mass production and their broad application prospects,but also provide a new insight for the development of flexible electronics.

关 键 词：flexible electronics LEATHER bidirectional detection pressing/pulling force magnetic field sensing 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]