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Issue 9, 2016
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Characterisation of graphene fibres and graphene coated fibres using capacitively coupled contactless conductivity detector

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Abstract

The use of capacitively coupled contactless conductivity detection (C4D) for the characterisation of thin conductive graphene fibres, graphene composite fibres, and graphene coated fibrous materials is demonstrated for the first time. Within a few seconds, the non-destructive C4D detector provides a profile of the longetudinal physical homogeneity of the fibre, as well as extra information regarding fibre mophology and composition. In addition to the theoretical considerations related to the factors affect the output signal, this work evaluates the properties of graphene fibres using scanning C4D following the manufacturing process of wet-spinning. Furthermore, conductive graphene-coated fibrous materials and the effectiveness of the coating and reduction procedures applied could be investigated. Apart from the application of C4D in the monitoring of such processes, the feasibility of this small, highly sensitive and rapidly-responsive detector to monitor strain and elasticity responses of conductive and elastomeric composite fibres for applications in motion sensing, biomedical monitoring, and stretchable electronics was also demonstrated.

Graphical abstract: Characterisation of graphene fibres and graphene coated fibres using capacitively coupled contactless conductivity detector

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Article information


Submitted
10 Dec 2015
Accepted
17 Feb 2016
First published
18 Feb 2016

Analyst, 2016,141, 2774-2782
Article type
Paper

Characterisation of graphene fibres and graphene coated fibres using capacitively coupled contactless conductivity detector

J. M. Cabot, E. Duffy, S. Currivan, A. Ruland, R. Jalili, A. J. Mozer, P. C. Innis, G. G. Wallace, M. Breadmore and B. Paull, Analyst, 2016, 141, 2774
DOI: 10.1039/C5AN02534F

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