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Electrical Resistance Measurement Methods and Electrical Characterization of Poly(3,4-ethylenedioxythiophene)- Coated Conductive Fibers
University of Borås, School of Engineering. (Polymer Group)
University of Borås, School of Engineering. (Polymer Group)
University of Borås, Swedish School of Textiles. (Polymer Group)
2012 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 124, no 4, p. 2954-2961Article in journal (Refereed) Published
Abstract [en]

Textile fibers and yarns of high conductivity, and their integration into wearable textiles for different electronic applications, have become an important research field for many research groups throughout the world. We have produced novel electrically conductive textile yarns by vapor-phase polymerization (VPP) of a conjugated polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), on the surface of commercially available textile yarns (viscose). In this article, we have presented a novel setup for electrical resistance measurements, which can be used not only for fibrous structures but also for woven structures of specific dimensions. We have reported a two-point resistance- measuring method using an already manufactured setup and also a comparison with the conventionally used method (so-called crocodile clip method). We found that the electrical properties of PEDOT-coated viscose fibers strongly depend on the concentration of oxidant (FeCl3)and the doping (oxidation) process of PEDOT. To evaluate the results, we used mass specific resistance values of PEDOT-coated viscose yarns instead of normal surface resistance values. The voltage–current (V–I) characteristics support the ohmic behavior of coated fibers to some extent. Monitoring of the charging effect of the flow of current through conductive fibers for prolonged periods of time showed that conductivity remains constant. The change in electrical resistance values with increase in the length of coated fibers was also reported. The resistance measuring setup employed could also be used for continuous measurement of resistance in the production of conductive fibers, as well as for four-point resistance measurement.

Place, publisher, year, edition, pages
John Wiley & Sons, Inc. , 2012. Vol. 124, no 4, p. 2954-2961
Keywords [en]
electrical resistance measurement, conductive yarn, pedot coating, electrical characterization, two-point resistance measurement, Organic Electronics, Smart Textiles
National Category
Organic Chemistry Materials Engineering
Research subject
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Identifiers
URN: urn:nbn:se:hb:diva-3188DOI: 10.1002/app.35323ISI: 000299947100033Local ID: 2320/9436OAI: oai:DiVA.org:hb-3188DiVA, id: diva2:871285
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-12-09Bibliographically approved

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Bashir, TariqSkrifvars, MikaelPersson, Nils-Krister

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