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  • Fabrication of a sensitive pressure sensor using carbon nanotube micro-yarns

    Author(s)
    Toan, Dinh
    Tuan-Khoa, Nguyen
    Hoang-Phuong, Phan
    Fastier-Wooller, Jarred
    Canh-Dung, Tran
    Nam-Trung, Nguyen
    Dzung, Viet Dao
    Griffith University Author(s)
    Dao, Dzung V.
    Nguyen, Nam-Trung
    Nguyen Tuan, Khoa
    Year published
    2017
    Metadata
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    Abstract
    Developing flexible pressure sensors is of high interest in soft skin and tactile sensing applications. Here we demonstrate a simple approach to fabricating a sensitive resistive pressure sensor using carbon nanotube (CNT) micro-yarns as a pressure sensing element which is constructed on a stretchable acrylic elastomer. The sensor showed a high sensitivity of -0.86 Ω/kPa and a fast response time of 100 ms. Different to the longitudinal piezoresistive effect of micro-yarns, the high pressure sensitivity of the sensor was achieved owing to the compressibility of the micro-yarn in the direction perpendicular to the yarn axis. ...
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    Developing flexible pressure sensors is of high interest in soft skin and tactile sensing applications. Here we demonstrate a simple approach to fabricating a sensitive resistive pressure sensor using carbon nanotube (CNT) micro-yarns as a pressure sensing element which is constructed on a stretchable acrylic elastomer. The sensor showed a high sensitivity of -0.86 Ω/kPa and a fast response time of 100 ms. Different to the longitudinal piezoresistive effect of micro-yarns, the high pressure sensitivity of the sensor was achieved owing to the compressibility of the micro-yarn in the direction perpendicular to the yarn axis. The sensor was also able to monitor finger pressure in real-time, demonstrating its potential for tactile sensing applications.
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    Conference Title
    2017 IEEE SENSORS
    Volume
    2017-December
    DOI
    https://doi.org/10.1109/ICSENS.2017.8233966
    Subject
    Nanotechnology not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/373344
    Collection
    • Conference outputs

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