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

Dinh, Toan and Nguyen, Tuan-Khoa and Phan, Hoang-Phuong and Fastier-Wooller, Jarred and Tran, Canh-Dung and Dao, Dzung Viet (2017) Fabrication of a sensitive pressure sensor using carbon nanotube micro-yarns. In: IEEE Sensors 2017 , 29 Oct - 1 Nov 2017, Glasgow, Scotland.

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. The sensor was also able to monitor finger pressure in real-time, demonstrating its potential for tactile sensing applications.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Session A2P-J. Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 03 Jan 2018 04:50
Last Modified: 18 Sep 2018 04:38
Uncontrolled Keywords: carbon nanotube, yarn, resistive pressure sensor, piezoresistive effect, flexible/stretchable electronics, soft skin
Fields of Research : 09 Engineering > 0915 Interdisciplinary Engineering > 091599 Interdisciplinary Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/33471

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