Ultrafast Direct Writing of Polymers as a Simple Fabrication Method for Organic Electrochemical Transistors

Organic ionic/electronic conductors (OMIECs) offer a promising alternative to metals and inorganic semiconductors for direct interfacing between human-made electronics and biological tissues. A device that takes advantage of the mixed ionic/electronic conductivity of OMIEC materials is the organic e...

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Published in2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) pp. 1543 - 1546
Main Authors Enrico, Alessandro, Buchmann, Sebastian, De Ferrari, Fabio, Wang, Yazhou, Yue, Wan, Stemme, Goran, Niklaus, Frank, Herland, Anna, Zeglio, Erica
Format Conference Proceeding
LanguageEnglish
Published IEEJ 25.06.2023
Subjects
4-ethylenedioxythiophene) Polystyrene Sulfonate
Conductive Polymers
Fabrication
Nanoscribe 3D printer
Organic Electrochemical Transistors
Plastics
Poly
Sensors
Solvents
Three-dimensional displays
Transducers
Writing
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Summary:Organic ionic/electronic conductors (OMIECs) offer a promising alternative to metals and inorganic semiconductors for direct interfacing between human-made electronics and biological tissues. A device that takes advantage of the mixed ionic/electronic conductivity of OMIEC materials is the organic electrochemical transistor (OECT). High-density OECTs are typically fabricated using costly cleanroom-based lithography and complex lift-off processes. To simplify the fabrication of OECTs, we propose laser direct writing of conjugated polymers using a commercial two-photon polymerization 3D printer. Ultrafast laser direct writing allows single-digit micrometer resolution and high-speed processing, thereby enabling a cost-effective and simple fabrication process.
ISSN:2167-0021