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The non-ideal organic electrochemical transistors impedance (CROSBI ID 264695)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Pecqueur, Sébastien ; Lončarić, Ivor ; Zlatić, Vinko ; Vuillaume, Dominique ; Crljen, Željko The non-ideal organic electrochemical transistors impedance // Organic electronics, 71 (2019), 14-23. doi: 10.1016/j.orgel.2019.05.001

Podaci o odgovornosti

Pecqueur, Sébastien ; Lončarić, Ivor ; Zlatić, Vinko ; Vuillaume, Dominique ; Crljen, Željko

engleski

The non-ideal organic electrochemical transistors impedance

Organic electrochemical transistors offer powerful functionalities for biosensors and neuro-inspired electronics, with still much to understand on the time-dependent behavior of this electrochemical device. Here, we report on distributed-element modeling of the impedance of such micro-fabricated device, systematically performed under a large concentration variation for KCl(aq) and CaCl2(aq). We propose a new model which takes into account three main deviations to ideality, that were systematically observed, caused by both the materials and the device complexity, over large frequency range (1 Hz– 1 MHz). More than introducing more freedom degree, the introduction of these non-redundant parameters and the study of their behaviors as function of the electrolyte concentration and applied voltage give a more detailed picture of the OECT working principles. This optimized model can be further useful for improving OECT performances in many applications (e.g. biosensors, neuro-inspired devices, …) and circuit simulations.

Modeling ; Equivalent circuit ; Ion sensing

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Podaci o izdanju

71

2019.

14-23

objavljeno

1566-1199

1878-5530

10.1016/j.orgel.2019.05.001

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Fizika

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