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Organic electrochemical transistors manufactured by laser ablation and screen printing
Linköping University, Sweden.
Linköping University, Sweden.
Linköping University, Sweden.
Linköping University, Sweden.
Vise andre og tillknytning
2022 (engelsk)Inngår i: Flexible and Printed Electronics, ISSN 2058-8585, Vol. 7, nr 3, artikkel-id 035018Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The dimensions of the material serving as the channel in organic electrochemical transistors (OECTs) are important for the overall switching performance. Here, a laser ablation step is included in the OECT manufacturing process, in an attempt to shorten the channel length of the OECT. The source and drain electrodes are formed by laser ablation of a previously screen printed carbon-based rectangle, which in this study resulted in an average channel length equal to 25 µm. All other processing steps rely on screen printing, allowing for large-area manufacturing of OECTs and OECT-based circuits on flexible substrates. This approach results in a manufacturing yield of 89%; 178 out of a total of 200 OECTs exhibited an ON/OFF ratio exceeding 1000 with a statistical mean value of 28 000 and reproducible switching performance. OECT-based circuits, here demonstrated by a logic inverter, provide a reasonably high voltage gain of 12. The results thus demonstrate another reliable OECT manufacturing process, based on the combination of laser ablation and screen printing.

sted, utgiver, år, opplag, sider
IOP Publishing , 2022. Vol. 7, nr 3, artikkel-id 035018
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-60134DOI: 10.1088/2058-8585/ac8aa6Scopus ID: 2-s2.0-85137668038OAI: oai:DiVA.org:ri-60134DiVA, id: diva2:1697871
Merknad

This work was supported by the Swedish foundation for Strategic Research (Silicon-Organic Hybrid Autarkic Systems, SE13-0045), the Knut and Alice Wallenberg Foundation, the Swedish Government Strategic Research Area in Materials Science on Advanced Functional Materials at Linköping University, and the European Union's Horizon 2020 research and innovation programme under the Grant Agreement Nos. 825339 and 964677. M B gratefully acknowledges support from the Önnesjö Foundation. The authors acknowledge Jan Strandberg (RISE) and Kathrin Freitag (RISE) for designing the screen printing tools and the screen printing activities, respectively.

Tilgjengelig fra: 2022-09-22 Laget: 2022-09-22 Sist oppdatert: 2023-12-05bibliografisk kontrollert

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