期刊
ACS NANO
卷 12, 期 9, 页码 9134-9141出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b03391
关键词
graphene textile strain sensor; negative resistance variation; colorant; human motions; resistance models
类别
资金
- National Key RD Program [2016YFA0200400]
- National Natural Science Foundation [61574083, 61434001]
- National Basic Research Program [2015CB352101]
- Special Fund for Agroscientific Research in the Public Interest of China [201303107]
- Research Fund from Beijing Innovation Center for Future Chip
- Independent Research Program of Tsinghua University [2014Z01006]
- Shenzhen Science and Technology Program [JCYJ20150831192224146]
Recently, wearable devices have been attracting significantly increased interest in human motion detection and human physiological signal monitoring. Currently, it is still a great challenge to fabricate strain sensors with high performance and good fit to the human body. In this work, we fabricated a close-fitting and wearable graphene textile strain sensor based on a graphene textile without polymer encapsulation. Graphene oxide acts as a colorant to dye the polyester fabric and is reduced at high temperature, which endows the graphene textile strain sensor with excellent performance. Compared with the previously reported strain sensors, our strain sensor exhibits a distinctive negative resistance variation with increasing strain. In addition, the sensor also demonstrates fascinating performance, including high sensitivity, long-term stability, and great comfort. Based on its superior performance, the graphene textile strain sensor can be knitted on clothing for detecting both subtle and large human motions, showing the tremendous potential for applications in wearable electronics.
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