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Structural control of mixed ionic and electronic transport in conducting polymers

Author

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  • Jonathan Rivnay

    (Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC
    Present address: PARC, a Xerox Company, 3333 Coyote Hill Road, Palo Alto, California 94304, USA.)

  • Sahika Inal

    (Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC)

  • Brian A. Collins

    (National Institute of Standards and Technology (NIST)
    Washington State University)

  • Michele Sessolo

    (Instituto de Ciencia Molecular, Universidad de Valencia)

  • Eleni Stavrinidou

    (Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC)

  • Xenofon Strakosas

    (Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC)

  • Christopher Tassone

    (Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory)

  • Dean M. Delongchamp

    (National Institute of Standards and Technology (NIST))

  • George G. Malliaras

    (Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC)

Abstract

Poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate), PEDOT:PSS, has been utilized for over two decades as a stable, solution-processable hole conductor. While its hole transport properties have been the subject of intense investigation, recent work has turned to PEDOT:PSS as a mixed ionic/electronic conductor in applications including bioelectronics, energy storage and management, and soft robotics. Conducting polymers can efficiently transport both holes and ions when sufficiently hydrated, however, little is known about the role of morphology on mixed conduction. Here, we show that bulk ionic and electronic mobilities are simultaneously affected by processing-induced changes in nano- and meso-scale structure in PEDOT:PSS films. We quantify domain composition, and find that domain purification on addition of dispersion co-solvents limits ion mobility, even while electronic conductivity improves. We show that an optimal morphology allows for the balanced ionic and electronic transport that is critical for prototypical mixed conductor devices. These findings may pave the way for the rational design of polymeric materials and processing routes to enhance devices reliant on mixed conduction.

Suggested Citation

  • Jonathan Rivnay & Sahika Inal & Brian A. Collins & Michele Sessolo & Eleni Stavrinidou & Xenofon Strakosas & Christopher Tassone & Dean M. Delongchamp & George G. Malliaras, 2016. "Structural control of mixed ionic and electronic transport in conducting polymers," Nature Communications, Nature, vol. 7(1), pages 1-9, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11287
    DOI: 10.1038/ncomms11287
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    Cited by:

    1. Dong-Hu Kim & Zico Alaia Akbar & Yoga Trianzar Malik & Ju-Won Jeon & Sung-Yeon Jang, 2023. "Self-healable polymer complex with a giant ionic thermoelectric effect," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Bo Fang & Jianmin Yan & Dan Chang & Jinli Piao & Kit Ming Ma & Qiao Gu & Ping Gao & Yang Chai & Xiaoming Tao, 2022. "Scalable production of ultrafine polyaniline fibres for tactile organic electrochemical transistors," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Ji Hwan Kim & Roman Halaksa & Il-Young Jo & Hyungju Ahn & Peter A. Gilhooly-Finn & Inho Lee & Sungjun Park & Christian B. Nielsen & Myung-Han Yoon, 2023. "Peculiar transient behaviors of organic electrochemical transistors governed by ion injection directionality," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    4. Kamila Janzakova & Ankush Kumar & Mahdi Ghazal & Anna Susloparova & Yannick Coffinier & Fabien Alibart & Sébastien Pecqueur, 2021. "Analog programing of conducting-polymer dendritic interconnections and control of their morphology," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    5. Rugang Geng & Adrian Mena & William J. Pappas & Dane R. McCamey, 2023. "Sub-micron spin-based magnetic field imaging with an organic light emitting diode," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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