Carbonized Cotton Fabric for High-Performance Wearable Strain Sensors

被引:464
作者
Zhang, Mingchao [1 ,2 ]
Wang, Chunya [1 ]
Wang, Huimin [1 ]
Jian, Muqiang [1 ]
Hao, Xiangyang [2 ]
Zhang, Yingying [1 ]
机构
[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
[2] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Beijing 100083, Peoples R China
关键词
PRESSURE SENSOR; FIBER; TRANSPARENT; CONDUCTORS; NANOTUBES; CELLULOSE;
D O I
10.1002/adfm.201604795
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Recent years have witnessed the booming development of flexible strain sensors. To date, it is still a great challenge to fabricate strain sensors with both large workable strain range and high sensitivity. Cotton is an abundant supplied natural material composed of cellulose fibers and has been widely used for textiles and clothing. In this work, the fabrication of highly sensitive wearable strain sensors based on commercial plain weave cotton fabric, which is the most popular fabric for clothes, is demonstrated through a low-cost and scalable process. The strain sensors based on carbonized cotton fabric exhibit fascinating performance, including large workable strain range (> 140%), superior sensitivity (gauge factor of 25 in strain of 0%-80% and that of 64 in strain of 80%-140%), inconspicuous drift, and long-term stability, simultaneously offering advantages of low cost and simplicity in device fabrication and versatility in applications. Notably, the strain sensor can detect a subtle strain of as low as 0.02%. Based on its superior performance, its applications in monitoring both vigorous and subtle human motions are demonstrated, showing its tremendous potential for applications in wearable electronics and intelligent robots.
引用
收藏
页数:7
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