High-Performance Wearable Strain Sensor Based on MXene@Cotton Fabric with Network Structure

Nanomaterials

Xuqing Liu¹  Lu Liu²  Qianku Hu²  Wenfeng Yuan²  Aiguo Zhou²  Qixun Xia²  Libo Wang²  Mengmeng Yuan² 

[1] Department of Materials, The University of Manchester, Oxford Road, Manchester M13 9PL, UK;Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China;

关键词: MXene;    cotton fabric;    strain sensor;    flexible;   

DOI  :  10.3390/nano11040889

来源: DOAJ

【 摘 要 】

Flexible and comfortable wearable electronics are as a second skin for humans as they can collect the physiology of humans and show great application in health and fitness monitoring. MXene Ti₃C₂T_x have been used in flexible electronic devices for their unique properties such as high conductivity, excellent mechanical performance, flexibility, and good hydrophilicity, but less research has focused on MXene-based cotton fabric strain sensors. In this work, a high-performance wearable strain sensor composed of two-dimensional (2D) MXene d-Ti₃C₂T_x nanomaterials and cotton fabric is reported. Cotton fabrics were selected as substrate as they are comfortable textiles. As the active material in the sensor, MXene d-Ti₃C₂T_x exhibited an excellent conductivity and hydrophilicity and adhered well to the fabric fibers by electrostatic adsorption. The gauge factor of the MXene@cotton fabric strain sensor reached up to 4.11 within the strain range of 15%. Meanwhile, the sensor possessed high durability (>500 cycles) and a low strain detection limit of 0.3%. Finally, the encapsulated strain sensor was used to detect subtle or large body movements and exhibited a rapid response. This study shows that the MXene@cotton fabric strain sensor reported here have great potential for use in flexible, comfortable, and wearable devices for health monitoring and motion detection.

【 授权许可】

Unknown