Three-Dimensional Graphene-Based Composite for Elastic Strain Sensor Applications
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Three-Dimensional Graphene-Based Composite for Elastic Strain Sensor Applications Jinhui Li, Guoping Zhang, Rong Sun and C. P. Wong MRS Advances / FirstView Article / July 2016, pp 1 - 6 DOI: 10.1557/adv.2016.508, Published online: 13 July 2016
Link to this article: http://journals.cambridge.org/abstract_S2059852116005089 How to cite this article: Jinhui Li, Guoping Zhang, Rong Sun and C. P. Wong Three-Dimensional Graphene-Based Composite for Elastic Strain Sensor Applications. MRS Advances, Available on CJO 2016 doi:10.1557/adv.2016.508 Request Permissions : Click here
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MRS Advances © 2016 Materials Research Society DOI: 10.1557/adv.2016.508
Three-Dimensional Graphene-Based Composite for Elastic Strain Sensor Applications Jinhui Li1, Guoping Zhang1*, Rong Sun1, C. P. Wong2,3 1 Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China 2 School of Materials Science and Engineering, Georgia Institute of Technology, USA 3 Faculty of Engineering, The Chinese University of Hong Kong 999077, Hong Kong, China *[email protected], +86755-86392104 ABSTRACT Flexible electronics has emerged as a very promising field, in particular, wearable, bendable, and stretchable strain sensors with high sensitivity which could be used for human motion detection, sports performance monitoring, etc. In this paper, a highly stretchable and sensitive strain sensor composed of reduced graphene oxide foam and elastomer composite is fabricated by assembly and followed by a polymer immersing process. The strain sensor has demonstrated high stretchability and sensitivity. Furthermore, the device was employed for gauging muscle-induced strain which results in high sensitivity and reproducibility. The developed strain sensors showed great application potential in fields of biomechanical systems. INTRODUCTION There is a growing demand for flexible and soft electronic devices. In particular, stretchable and wearable strain sensors are greatly needed for several potential applications including health-monitoring, human body motion detection, soft robotics, and so forth[1]. A strain sensor is a device that converts mechanical deformation into output signals based on changes in resistance and capacitance[2]. The resistive approach for strain sensors have been widely employed because of the wide range of working strain, low cost, and simple fabrication. In this case, electrically stretchable structures and materials are greatly in need. Material approaches are mainly performed by developing conductive stretchable materials, such as polymer composites with conductive nanofillers embedded and distributed spatially in polymer matrices. Various materials such as metal nanowires[3], carbon black[4, 5], carbon nanotubes[6, 7], graphene woven fabrics[8, 9], graphene–nanocellulose nanopapers[10] and so forth have be
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