Stretchable, Sensitive Strain Sensors with a Wide Workable Range and Low Detection Limit for Wearable Electronic Skins

被引:41
作者
Zhai, Wei [1 ]
Zhu, Jingzhan [1 ]
Wang, Ziqi [1 ]
Zhao, Yi [1 ]
Zhan, Pengfei [1 ]
Wang, Shuo [1 ]
Zheng, Guoqiang [1 ]
Shao, Chunguang [1 ]
Dai, Kun [1 ,2 ]
Liu, Chuntai [1 ]
Shen, Changyu [1 ]
机构
[1] Zhengzhou Univ, Sch Mat Sci & Engn, Key Lab Mat Proc & Mold, Minist Educ, Zhengzhou 450001, Henan, Peoples R China
[2] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
基金
中国国家自然科学基金;
关键词
flexible electronics; strain sensor; polymer nanocomposites; polyaniline; human-machine interaction; CARBON NANOTUBES; PERFORMANCE; COMPOSITES;
D O I
10.1021/acsami.1c18233
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
With the rapid development of wearable electronics, a multifunctional and flexible strain sensor is urgently required. Even though enormous progress has been achieved in designing high-performance strain sensors, the conflict between high sensitivity and a large workable range still restricts their further advance. Herein, a "point to point" conductive network is proposed to design and fabricate a carbon black/polyaniline nanoparticles/thermoplastic polyurethane film (CPUF). The designed structure renders CPUF composites with a wide sensitive range (up to 680% strain), highly sensitive response with a low detection limit of 0.03% strain, and high gauge factor (GF) of 3030.8, together with good sensing stability, fast response/recovery time (80 ms/95 ms), and good durability even after 10000 stretching/releasing cycles. CPUF composites are assembled as wearable strain sensors with the ability of precisely detecting full-range human motions and organic solvents, showing a potential application in human-machine interaction and environmental monitoring.
引用
收藏
页码:4562 / 4570
页数:9
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