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Stretchable Electronics Based on Laser Structured, Vapor Phase Polymerized PEDOT/Tosylate
Department of Anatomy & Medical Imaging, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand.
Department of Microsystems Engineering (IMTEK) and BrainLinks-BrainTools Center, University of Freiburg, 79110 Freiburg, Germany.
School of Pharmacy, University of Auckland, Auckland 1023, New Zealand.
Department of Anatomy & Medical Imaging, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand.
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2020 (English)In: Polymers, ISSN 2073-4360, E-ISSN 2073-4360, Vol. 12, no 8, article id 1654Article in journal (Refereed) Published
Abstract [en]

The fabrication of stretchable conductive material through vapor phase polymerization of poly(3,4-ethylenedioxythiophene) (PEDOT) is presented alongside a method to easily pattern these materials with nanosecond laser structuring. The devices were constructed from sheets of vapor phase polymerized PEDOT doped with tosylate on pre-stretched elastomeric substrates followed by laser structuring to achieve the desired geometrical shape. Devices were characterized for electrical conductivity, morphology, and electrical integrity in response to externally applied strain. Fabricated PEDOT sheets displayed a conductivity of 53.1 ± 1.2 S cm−1; clear buckling in the PEDOT microstructure was observed as a result of pre-stretching the underlying elastomeric substrate; and the final stretchable electronic devices were able to remain electrically conductive with up to 100% of externally applied strain. The described polymerization and fabrication steps achieve highly processable and patternable functional conductive polymer films, which are suitable for stretchable electronics due to their ability to withstand externally applied strains of up to 100%.

Place, publisher, year, edition, pages
MDPI, 2020. Vol. 12, no 8, article id 1654
Keywords [en]
conducting polymers, vapor phase polymerization, PDMS, elastomeric
National Category
Other Medical Engineering
Research subject
Medical Engineering
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URN: urn:nbn:se:ltu:diva-80477DOI: 10.3390/polym12081654ISI: 000565521900001PubMedID: 32722387Scopus ID: 2-s2.0-85089540940OAI: oai:DiVA.org:ltu-80477DiVA, id: diva2:1459439
Note

Validerad;2020;Nivå 2;2020-08-20 (alebob)

Available from: 2020-08-20 Created: 2020-08-20 Last updated: 2020-09-17Bibliographically approved

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Asplund, Maria

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