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Solution processed liquid metal-conducting polymer hybrid thin films as electrochemical pH-threshold indicators
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-7016-6514
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2015 (English)In: Journal of Materials Chemistry C, ISSN 2050-7526, Vol. 3, no 29, 7604-7611 p.Article 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
Royal Society of Chemistry , 2015. Vol. 3, no 29, 7604-7611 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-120667DOI: 10.1039/c5tc00753dISI: 000358228400010OAI: oai:DiVA.org:liu-120667DiVA: diva2:847538
Note

Funding Agencies|European Research Council (ERC-starting-grant) [307596]; European Commission; Region Wallonne (FEDER Revetements Fonctionnels program) [475225-579695]; BELSPO [IAP 7/05]; OPTI2MAT Excellence program of Region Wallonne [816925]; FNRS-FRFC

Available from: 2015-08-20 Created: 2015-08-20 Last updated: 2015-08-20

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Mitraka, EvangeliaKergoat, LoigUllah Khan, ZiaFabiano, SimoneBerggren, MagnusCrispin, Xavier
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Physics and ElectronicsFaculty of Science & EngineeringDepartment of Science and Technology
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Journal of Materials Chemistry C
Electrical Engineering, Electronic Engineering, Information Engineering

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