Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors

Christian B. Nielsen; Alexander Giovannitti; Dan-Tiberiu Sbircea; Enrico Bandiello; Muhammad Rizwan Niazi; David A. Hanifi; Michele Sessolo; Aram Amassian; George G. Malliaras; Jonathan Rivnay; Iain McCulloch

doi:10.1021/jacs.6b05280

Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors

Christian B. Nielsen, Alexander Giovannitti, Dan-Tiberiu Sbircea, Enrico Bandiello, Muhammad Rizwan Niazi, David A. Hanifi, Michele Sessolo, Aram Amassian, George G. Malliaras, Jonathan Rivnay, Iain McCulloch

Research output: Contribution to journal › Article › peer-review

295 Scopus citations

Abstract

The organic electrochemical transistor (OECT), capable of transducing small ionic fluxes into electronic signals in an aqueous envi-ronment, is an ideal device to utilize in bioelectronic applications. Currently, most OECTs are fabricated with commercially availa-ble conducting poly(3,4-ethylenedioxythiophene) (PEDOT)-based suspensions and are therefore operated in depletion mode. Here, we present a series of semiconducting polymers designed to elucidate important structure-property guidelines required for accumulation mode OECT operation. We discuss key aspects relating to OECT performance such as ion and hole transport, elec-trochromic properties, operational voltage and stability. The demonstration of our molecular design strategy is the fabrication of accumulation mode OECTs that clearly outperform state-of-the-art PEDOT based devices, and show stability under aqueous oper-ation without the need for formulation additives and cross-linkers.

Original language	English (US)
Pages (from-to)	10252-10259
Number of pages	8
Journal	Journal of the American Chemical Society
Volume	138
Issue number	32
DOIs	https://doi.org/10.1021/jacs.6b05280
State	Published - Aug 8 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was carried out with financial support from EC FP7
Project SC2 (610115), EC FP7 Project ArtESun (604397), EC
FP7 Project PolyMed (612538), and EPSRC Project
EP/G037515/1. E.B. thanks the Spanish Ministry of Economy and
Competitiveness for his predoctoral contract. M.S. acknowledges
support from the first edition of the BBVA Foundation Grants for
Researchers and Cultural Creators.

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10.1021/jacs.6b05280

https://repository.kaust.edu.sa/bitstream/10754/617692/1/jacs2E6b05280.pdf

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Nielsen, C. B., Giovannitti, A., Sbircea, D.-T., Bandiello, E., Niazi, M. R., Hanifi, D. A., Sessolo, M., Amassian, A., Malliaras, G. G., Rivnay, J., & McCulloch, I. (2016). Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors. Journal of the American Chemical Society, 138(32), 10252-10259. https://doi.org/10.1021/jacs.6b05280

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title = "Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors",

abstract = "The organic electrochemical transistor (OECT), capable of transducing small ionic fluxes into electronic signals in an aqueous envi-ronment, is an ideal device to utilize in bioelectronic applications. Currently, most OECTs are fabricated with commercially availa-ble conducting poly(3,4-ethylenedioxythiophene) (PEDOT)-based suspensions and are therefore operated in depletion mode. Here, we present a series of semiconducting polymers designed to elucidate important structure-property guidelines required for accumulation mode OECT operation. We discuss key aspects relating to OECT performance such as ion and hole transport, elec-trochromic properties, operational voltage and stability. The demonstration of our molecular design strategy is the fabrication of accumulation mode OECTs that clearly outperform state-of-the-art PEDOT based devices, and show stability under aqueous oper-ation without the need for formulation additives and cross-linkers.",

author = "Nielsen, {Christian B.} and Alexander Giovannitti and Dan-Tiberiu Sbircea and Enrico Bandiello and Niazi, {Muhammad Rizwan} and Hanifi, {David A.} and Michele Sessolo and Aram Amassian and Malliaras, {George G.} and Jonathan Rivnay and Iain McCulloch",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was carried out with financial support from EC FP7 Project SC2 (610115), EC FP7 Project ArtESun (604397), EC FP7 Project PolyMed (612538), and EPSRC Project EP/G037515/1. E.B. thanks the Spanish Ministry of Economy and Competitiveness for his predoctoral contract. M.S. acknowledges support from the first edition of the BBVA Foundation Grants for Researchers and Cultural Creators.",

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N2 - The organic electrochemical transistor (OECT), capable of transducing small ionic fluxes into electronic signals in an aqueous envi-ronment, is an ideal device to utilize in bioelectronic applications. Currently, most OECTs are fabricated with commercially availa-ble conducting poly(3,4-ethylenedioxythiophene) (PEDOT)-based suspensions and are therefore operated in depletion mode. Here, we present a series of semiconducting polymers designed to elucidate important structure-property guidelines required for accumulation mode OECT operation. We discuss key aspects relating to OECT performance such as ion and hole transport, elec-trochromic properties, operational voltage and stability. The demonstration of our molecular design strategy is the fabrication of accumulation mode OECTs that clearly outperform state-of-the-art PEDOT based devices, and show stability under aqueous oper-ation without the need for formulation additives and cross-linkers.

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Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors

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