文献类型：期刊文献

英文题名：Extrusion printing of carbon nanotube-coated elastomer fiber with microstructures for flexible pressure sensors

作者：Gao, Yang[1];Xu, Mengdi[1];Yu, Guohui[1];Tan, Jianping[1];Xuan, Fuzhen[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：299

外文期刊名：SENSORS AND ACTUATORS A-PHYSICAL

收录：;EI(收录号：20193907464647);WOS:【SCI-EXPANDED(收录号:WOS:000496341800015)】；

基金：This project is supported by National Key Research and Development Program of China (No. 2018YFB1105400), National Natural Science Foundation of China (Grant No. 51705154 and 61804054), Shanghai Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, Shanghai Rising-Star Program (A type) (Grant No. 18QA1401300), Shanghai Sailing Program17YF1403300, and the Fundamental Research Funds for the Central Universities (50321071918005).

语种：英文

外文关键词：Extrusion printing; Resistive pressure sensors; Capacitive pressure sensors; Microstructured elastomer fibers

摘要：Microstructured wearable pressure sensors with high sensing performance have promising applications in soft robots, wearable electronics, and biomedical devices. However, current methods for the fabrication of the devices are complex, cost-ineffective, or time-consuming. Inspired by the crystalline ice plant having tiny crystalline beads on its stem, an extrusion printing method is developed to prepare carbon nanotube (CNT)-coated microstructured elastomer fibers for resistive and capacitive wearable pressure sensors. Due to the microstructures on the CNT-coated elastomer fiber, the resistive device has a sensitivity eight times higher than the smooth one, with a fast response time (20 ins), and a detectable limit of similar to 5.0 Pa. The capacitive device constructed using CNT-coated microstructured elastomer fiber provides a highest sensitivity of 0.17 kPa(-1), a response time around 25 ms, and a detectable limit of 0.02 kPa. The microstructured elastomer fiber based devices demonstrate the ability in measuring various external stimuli, exhibiting the potential for the aforementioned applications. (C) 2019 Elsevier B.V. All rights reserved.