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Ambipolar blend-based organic electrochemical transistors and inverters

Author

Listed:
  • Eyal Stein

    (Technion – Israel Institute of Technology)

  • Oded Nahor

    (Technion – Israel Institute of Technology)

  • Mikhail Stolov

    (Technion – Israel Institute of Technology)

  • Viatcheslav Freger

    (Technion – Israel Institute of Technology)

  • Iuliana Maria Petruta

    (University of Oxford)

  • Iain McCulloch

    (University of Oxford
    King Abdullah University of Science and Technology (KAUST))

  • Gitti L. Frey

    (Technion – Israel Institute of Technology)

Abstract

CMOS-like circuits in bioelectronics translate biological to electronic signals using organic electrochemical transistors (OECTs) based on organic mixed ionic-electronic conductors (OMIECs). Ambipolar OECTs can reduce the complexity of circuit fabrication, and in bioelectronics have the major advantage of detecting both cations and anions in one device, which further expands the prospects for diagnosis and sensing. Ambipolar OMIECs however, are scarce, limited by intricate materials design and complex synthesis. Here we demonstrate that judicious selection of p- and n-type materials for blend-based OMIECs offers a simple and tunable approach for the fabrication of ambipolar OECTs and corresponding circuits. These OECTs show high transconductance and excellent stability over multiple alternating polarity cycles, with ON/OFF ratios exceeding 103 and high gains in corresponding inverters. This work presents a simple and versatile new paradigm for the fabrication of ambipolar OMIECs and circuits with little constraints on materials design and synthesis and numerous possibilities for tunability and optimization towards higher performing bioelectronic applications.

Suggested Citation

  • Eyal Stein & Oded Nahor & Mikhail Stolov & Viatcheslav Freger & Iuliana Maria Petruta & Iain McCulloch & Gitti L. Frey, 2022. "Ambipolar blend-based organic electrochemical transistors and inverters," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-33264-2
    DOI: 10.1038/s41467-022-33264-2
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    References listed on IDEAS

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    1. Paolo Romele & Matteo Ghittorelli & Zsolt Miklós Kovács-Vajna & Fabrizio Torricelli, 2019. "Ion buffering and interface charge enable high performance electronics with organic electrochemical transistors," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
    2. Dion Khodagholy & Thomas Doublet & Pascale Quilichini & Moshe Gurfinkel & Pierre Leleux & Antoine Ghestem & Esma Ismailova & Thierry Hervé & Sébastien Sanaur & Christophe Bernard & George G. Malliaras, 2013. "In vivo recordings of brain activity using organic transistors," Nature Communications, Nature, vol. 4(1), pages 1-7, June.
    3. Alexander Giovannitti & Christian B. Nielsen & Dan-Tiberiu Sbircea & Sahika Inal & Mary Donahue & Muhammad R. Niazi & David A. Hanifi & Aram Amassian & George G. Malliaras & Jonathan Rivnay & Iain McC, 2016. "N-type organic electrochemical transistors with stability in water," Nature Communications, Nature, vol. 7(1), pages 1-10, December.
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