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Solution processed liquid metal-conducting polymer hybrid thin films as electrochemical pH-threshold indicators
Linköping University, Sweden.
Linköping University, Sweden.
Linköping University, Sweden.
Linköping University, Sweden.
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2015 (English)In: Journal of Materials Chemistry C, ISSN 2050-7526, E-ISSN 2050-7534, Vol. 3, no 29, p. 7604-7611Article in journal (Refereed) Published
Abstract [en]

A global and accurate mapping of the environment could be achieved if sensors and indicators are mass-produced at low cost. Printed electronics using polymeric (semi)conductors offer a platform for such sensor/indicator based circuits. Herein, we present the material concept for an electrochemical pH-threshold indicator based on a printable hybrid electrode which comprises a liquid metal alloy (GaInSn) embedded in a conducting polymer matrix (PEDOT). This hybrid electrode displays a large variation in open circuit potential versus pH in an electrochemical cell, which when connected to the gate of an electrochemical transistor leads to a dramatic change in the drain current in a narrow range of pH.

Place, publisher, year, edition, pages
2015. Vol. 3, no 29, p. 7604-7611
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Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-31903DOI: 10.1039/c5tc00753dOAI: oai:DiVA.org:ri-31903DiVA, id: diva2:1151761
Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2019-07-09Bibliographically approved

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Publisher's full texthttp://pubs.rsc.org/en/content/articlelanding/2015/tc/c5tc00753d/unauth#!divAbstract

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Andersson Ersman, Peter

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