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Combining Vapor Phase Polymerization and Screen Printing for Printed Electronics on Flexible Substrates
RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.ORCID iD: 0000-0001-8485-6209
RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.ORCID iD: 0000-0002-7303-6210
RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.ORCID iD: 0000-0002-2328-2720
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2022 (English)In: Advanced Materials Technologies, E-ISSN 2365-709X, Vol. 7, no 7, article id 2101665Article in journal (Refereed) Published
Abstract [en]

Large area manufacturing of printed electronic components on ~A4-sized substrates is demonstrated by the combination of screen printing and vapor phase polymerization (VPP) into poly(3,4-ethylenedioxythiophene) (PEDOT). The oxidant layer required for the polymerization process is screen printed, and the resulting conductive polymer patterns are manufactured at high resolution (100 µm). Successful processing of several common oxidant species is demonstrated, and the thickness can be adjusted by altering the polymerization time. By comparing the polymer films of this work to a commercial PEDOT:PSS (PEDOT doped with poly(styrene sulfonate)) screen printing ink shows improved surface roughness (26 vs 69 nm), higher conductivity (500 vs 100 S cm–1) and better resolution (100 vs 200 µm). Organic electrochemical transistors, in which the transistor channel is polymerized into PEDOT through VPP, are also demonstrated to further emphasize on the applicability of this manufacturing approach. The resulting transistor devices are not only functional, they also show remarkable switching behavior with respect to ON current levels (–70 mA at –1 V), ON/OFF ratios (>105), switching times (tens of ms) and transconductance values (>100 mS) in standalone transistor devices, in addition to a high amplification factor (>30) upon integration into a screen printed inverter circuit. © 2022 The Authors. 

Place, publisher, year, edition, pages
John Wiley and Sons Inc , 2022. Vol. 7, no 7, article id 2101665
Keywords [en]
Conducting polymers, Flexible electronics, Polymerization, Screen printing, Styrene, Substrates, Surface roughness, Transistors, Advanced material technologies, Conductive Polymer, Electronic component, Ethylenedioxythiophenes, Flexible substrate, Polymer patterns, Polymerization process, Printed electronics, Screen-printed, Vapor phase polymerization, Oxidants
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-59102DOI: 10.1002/admt.202101665Scopus ID: 2-s2.0-85122392869OAI: oai:DiVA.org:ri-59102DiVA, id: diva2:1651849
Note

Funding details: Stiftelsen för Strategisk Forskning, SSF; Funding details: Horizon 2020, 825339; Funding text 1: This project was financially supported by the Swedish Foundation for Strategic Research and the European Union's Horizon 2020 research and innovation programme under the grant agreement no. 825339 – WEARPLEX.

Available from: 2022-04-13 Created: 2022-04-13 Last updated: 2023-06-07Bibliographically approved

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Brooke, RobertHübscher, KathrinBelaineh Yilma, DagmawiAndersson Ersman, Peter

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