文献类型：期刊文献

英文题名：A Flexible Pressure Sensor Based on PDMS-CNTs Film for Multiple Applications

作者：Sadiq, Hammad[1];Hui, Hu[1];Huang, Song[1];Mahmood, Kashif[2];Sharif, Muhammad Haroon[3];Ali, Imran[4]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]Donghua Univ, Coll Mat Sci & Engn, Shanghai 200051, Peoples R China;[4]Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

年份：2022

卷号：22

期号：4

起止页码：3033

外文期刊名：IEEE SENSORS JOURNAL

收录：;EI(收录号：20213910954258);WOS:【SCI-EXPANDED(收录号:WOS:000754264700016)】；

基金：This work was supported by the National Natural Science Foundation of China-Natural Science Foundation for Youth Scientist under Grant 51905173.

语种：英文

外文关键词：Sensors; Pressure sensors; Piezoresistance; Sensitivity; Robot sensing systems; Conductivity; Sensor arrays; Flexible; human motions; pressure sensor; piezoresistive; PDMS-CNTs composite; words recognition

摘要：With the fast development of electronic skin, there is a great demand for wearable sensing devices. Herein, a piezoresistive sensor has been fabricated comprising a conductive film of Polydimethylsiloxane (PDMS)-carbon nanotubes (CNTs) sandwiched by two protection films of PDMS. A simple and low-cost manufacturing method has been proposed to wrap CNTs inside the flexible PDMS to obtain a soft sensor with excellent conductivity, high sensitivity, and fast response to various pressures. Additionally, films with different percentages of CNTs were compared. The results show that the film with 7% CNTs has higher conductivity and sensitivity. Moreover, the surface morphologies and microstructures of the superior PDMS-CNTs film were studied by scanning electron microscope, and sensing properties of the pressure sensor were tested. Furthermore, applications of single sensor and sensor array were studied. The results exhibit that the as-prepared pressure sensor successfully detected different human motions and recognized Morse code and words, indicating that the portable sensor can be potentially applied in wide areas such as smart devices and flexible robotics.