Highly stretchable and sensitive strain sensor based on silver nanowires/carbon nanotubes on hair band for human motion detection |
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| Authors: | Yanqiang Cao Tiancheng Lai Furui Teng Chang Liu Aidong Li |
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| Institution: | 1. National Laboratory of Solid State Microstructures, Materials Science and Engineering Department, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China;2. Institute of Micro-nano Photonic & Beam Steering, School of Science, Nanjing University of Science and Technology, Nanjing, 210094, China |
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| Abstract: | In this work, a highly stretchable and sensitive strain sensor using silver nanowires(Ag NWs)/multi-walled carbon nanotubes(MWCNTs) on hair band is proposed. The fabrication process of such sensors enabled scalable and facile production with low cost by dipping hair band into Ag NWs/MWCNTs composites suspension. The sensing performance of the sensors was optimized by tuning the Ag NWs/MWCNTs mass ratio. The hair band based strain sensor with Ag NWs/MWCNTs mass ratio of 30 exhibited the best performance with high sensitivity of 416.0 and good stretchability up to 70%. Moreover, great repeatability and long-term stability could be achieved over 7500 cycles of stretch-release. This Ag NWs/MWCNTs-hair band sensor can be used for monitoring human motions and swallowing action. |
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| Keywords: | Carbon nanotubes Silver nanowires Strain sensor Stretchable electronics Human motion detection |
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