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A super stretchable and sensitive strain sensor based on carbon nanocoil network fabricated by a simple peeling off approach

Abstract

Despite the tremendous progress in wearable and smart strain sensor, it is still a challenge to develop a highly sensitive, stretchable and low cost sensor. Herein, a super stretchable and sensitive strain sensor fabricated by a simple peeling off approach is reported. The strain sensor is prepared by peeling off a thin as-grown carbon nanocoil (CNC) film from substrate using a stretchable polydimenthylsiloxane (PDMS) film or a flexible adhesive tape. Here we take advantages of the spring-like morphology, and the original network of CNCs. The sensor is used to detect pressure, tension and bend. The strain range and maximum real-time gauge factor reach 260 % and 190 respectively, with a rapid response time (less than 12 ms). The contrary resistance responses under tension and bend make it possible to distinguish the direction and type of strain. The sensor is used to monitor a strain in wide range, from human pulse to the impact of a 0.9 kg weight. The high sensitivity and stretchability, easy and cheap fabrication, effective interaction with human motions suggest the great potential applications of the sensor in wearable strain sensor and smart system.

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Publication details

The article was received on 26 Jul 2017, accepted on 04 Oct 2017 and first published on 05 Oct 2017


Article type: Paper
DOI: 10.1039/C7NR05486F
Citation: Nanoscale, 2017, Accepted Manuscript
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    A super stretchable and sensitive strain sensor based on carbon nanocoil network fabricated by a simple peeling off approach

    C. Deng, L. Pan, D. Zhang, C. Li and H. Nasir, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR05486F

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