journal article·2024-01

The organic electrochemical transistor conundrum when reporting a mixed ionic–electronic transport figure of merit

Maryam Shahi, Vianna N. Le, Paula Alarcon Espejo, Maryam Alsufyani, Christina J. Kousseff, Iain McCulloch, Alexandra F. Paterson

Nature Materials· Volume 23· Issue 1
Publisher page

Abstract

An essential part of developing organic mixed ionic–electronic conducting materials and organic electrochemical transistors is consistent and standardized reporting of the product of charge carrier mobility and volumetric capacitance, the μC* product. This Comment argues that unexpected changes in transistor channel resistance can overestimate this figure of merit, leading to a confusion of comparisons in the literature. ; This work was supported by the National Science Foundation under Cooperative Agreement No. 1849213. We thank R. Sarabia Riquelme and M. Weisenburger for the PEDOT:PSS fibres used to fabricate the PEDOT:PSS OECTs.
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Research context

OpenAlex topics: Conducting polymers and applications · Organic Electronics and Photovoltaics · Electrochemical Analysis and Applications

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