文献类型：期刊文献

英文题名：Laser Direct Writing of Flexible Sensor Arrays Based on Carbonized Carboxymethylcellulose and Its Composites for Simultaneous Mechanical and Thermal Stimuli Detection

作者：Li, Qi[1];Bai, Ruijie[1];Gao, Yang[1];Wu, Rongyao[1];Ju, Kuan[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：2021

卷号：13

期号：8

起止页码：10171

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20211110085356);WOS:【SCI-EXPANDED(收录号:WOS:000626502700072)】；

基金：This project was supported by the National Key Research and Development Program of China (Gr a n t No. 2020YFB2008500), the National Natural Science Foundation of China (Grant Nos. 51705154, 51835003, and 61804054), Joint Fund of Ministry of Education of China for Equipment Pre-research (Grant No. 6141A02022136), the Shanghai Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, Shanghai Rising Star Program (A type) (Grant No. 18QA1401300), and the Open Project Program of Wuhan National Laboratory for Optoelectronics (No. 2020WNLOKF007).

语种：英文

外文关键词：laser direct writing; carbonized carboxymethylcellulose; multifunctional sensing arrays; mechanical stimuli sensing; thermal stimuli sensing

摘要：Multifunctional sensing devices with high flexibility, high sensitivity, and scalable fabrication are inevitable components of Internet of Things (IoT) for human-machine interfaces, structural health monitoring, and soft robots. Herein, high-performance flexible sensor arrays using carboxymethylcellulose (CMC) and its composite were developed for mechanical and thermal stimuli detection by laser direct writing. CMC contains abundant carbon precursors for strainsensitive laser-carbonized CMC (LC-CMC), while the incorporation of graphene oxide (GO) into CMC leads to the formation of thermal- sensitive laser-carbonized GO/CMC (LC-GO/CMC). The LC-CMC-based strain sensor delivers gauge factors of 487.7 (strain < 8.5%) and 8557 (8.5% < strain < 14%), with long-term stability over 10 000 cycles. With 0.2 wt % GO, the LC-GO/CMC-based device provides a temperature coefficient of resistance of -0.289% degrees C-1, higher than the Cr-based commercial sensor. The potential application of the devices in IoT is proved by combining the near-field communication technology with the LC-CMC-based device to monitor the strain suffered by 316L stainless steel during the fatigue test. Moreover, an integrated device based on the strain and temperature sensing arrays accomplishes the simultaneous measurement of temperature and mechanical deformation in real time.