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

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

^*Corresponding author for this work

Biomedical Engineering

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

291 Scopus citations

Abstract

The organic electrochemical transistor (OECT), capable of transducing small ionic fluxes into electronic signals in an aqueous environment, is an ideal device to utilize in bioelectronic applications. Currently, most OECTs are fabricated with commercially available 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, electrochromic 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 operation 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 17 2016

Funding

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 I edition of the BBVA Foundation Grants for Researchers and Cultural Creators.

ASJC Scopus subject areas

General Chemistry
Biochemistry
Catalysis
Colloid and Surface Chemistry

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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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abstract = "The organic electrochemical transistor (OECT), capable of transducing small ionic fluxes into electronic signals in an aqueous environment, is an ideal device to utilize in bioelectronic applications. Currently, most OECTs are fabricated with commercially available 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, electrochromic 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 operation without the need for formulation additives and cross-linkers.",

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AU - Niazi, Muhammad R.

AU - Hanifi, David A.

AU - Sessolo, Michele

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

Abstract

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