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High-Gain Logic Inverters based on Multiple Screen-Printed Organic Electrochemical Transistors
Linköping University, Sweden.
Linköping University, Sweden.
Linköping University, Sweden.
RISE Research Institutes of Sweden, Digital Systems, Smart Hardware.
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2022 (English)In: Advanced Materials Technologies, E-ISSN 2365-709X, Vol. 7, no 10, p. 2101642-Article in journal (Refereed) Published
Abstract [en]

Organic electronic circuits based on organic electrochemical transistors (OECTs) are attracting great attention due to their printability, flexibility, and low voltage operation. Inverters are the building blocks of digital logic circuits (e.g., NAND gates) and analog circuits (e.g., amplifiers). However, utilizing OECTs in electronic logic circuits is challenging due to the resulting low voltage gain and low output voltage levels. Hence, inverters capable of operating at relatively low supply voltages, yet offering high voltage gain and larger output voltage windows than the respective input voltage window are desired. Herein, inverters realized from poly(3,4-ethylenedioxythiophene):polystyrene sulfonate-based OECTs are designed and explored, resulting in logic inverters exhibiting high voltage gains, enlarged output voltage windows, and tunable switching points. The inverter designs are based on multiple screen-printed OECTs and a resistor ladder, where one OECT is the driving transistor while one or two additional OECTs are used as variable resistors in the resistor ladder. The inverters’ performances are investigated in terms of voltage gain, output voltage levels, and switching point. Inverters, operating at +/−2.5 V supply voltage and an input voltage window of 1 V, that can achieve an output voltage window with ∼110% increment and a voltage gain up to 42 are demonstrated. © 2022 The Authors.

Place, publisher, year, edition, pages
John Wiley and Sons Inc , 2022. Vol. 7, no 10, p. 2101642-
Keywords [en]
novel inverter designs, organic electrochemical transistors, PEDOT:PSS, printed organic electronics, tunable voltage gain, Conducting polymers, Gain measurement, Ladders, Resistors, Transistors, Novel inverte design, Output voltages, PEDOT/PSS, Screen-printed, Tunables, Voltage gain, Voltage window, Computer circuits
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URN: urn:nbn:se:ri:diva-59253DOI: 10.1002/admt.202101642Scopus ID: 2-s2.0-85127682078OAI: oai:DiVA.org:ri-59253DiVA, id: diva2:1660573
Note

Funding details: Stiftelsen för Strategisk Forskning, SSF, SE13‐0045; Funding details: Knut och Alice Wallenbergs Stiftelse; Funding details: Horizon 2020, 825339, 964677; Funding details: Wallenberg Wood Science Center, WWSC; Funding text 1: This project has received funding from the Swedish foundation for Strategic Research (Silicon‐Organic Hybrid Autarkic Systems, Reference number: SE13‐0045), the Knut and Alice Wallenberg Foundation (Wallenberg Wood Science Center and Wallenberg Scholars), and the European Union's Horizon 2020 research and innovation programme under the grant agreement nos. 825339 (WEARPLEX) and 964677 (MITICS). M.B. gratefully acknowledges support from the Önnesjö Foundation.

Available from: 2022-05-24 Created: 2022-05-24 Last updated: 2024-03-22Bibliographically approved

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