Electrical resistance of carbon nanotube yarns under compressive transverse pressure

Dinh, Toan and Nguyen, Tuan-Khoa and Phan, Hoang-Phuong and Fastier-Wooller, Jarred and Tran, Canh-Dung and Nguyen, Nam-Trung and Dao, Dzung Viet (2018) Electrical resistance of carbon nanotube yarns under compressive transverse pressure. IEEE Electron Device Letters, 39 (4). pp. 584-587. ISSN 0741-3106


This letter reports on the impact of compressive pressure on the electrical properties of carbon nanotube (CNT) yarns fabricated by dry Web-spinning and heat-treatment processes. Under increasing applied compressive pressure in the radial directionof the yarn, the electrical resistance of CNT yarns gradually decreased by 2.8% at a threshold applied pressure of 60 kPa where the resistance change is saturated. The decrease of CNT resistance with increasing pressure is attributed to the increase in the volume fraction of CNT, resulting in the increase of the effective junctions between adjacent CNTs, and the reduction of the tunneling distance between single CNTs. CNT yarns embedded in elastomers show high potential as an advanced functional element for a wide range of mechanical sensing applications including flexible pressure and tactile sensing.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the Copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 26 Mar 2018 01:50
Last Modified: 15 May 2018 23:35
Uncontrolled Keywords: carbon nanotube, pressure effect, yarn/fibre, volume fraction, tunnelling resistance
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
Identification Number or DOI: 10.1109/LED.2018.2806181
URI: http://eprints.usq.edu.au/id/eprint/33913

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