CUED Publications database

Water-gated organic transistors on polyethylene naphthalate films

de Oliveira, RF and Casalini, S and Cramer, T and Leonardi, F and Ferreira, M and Vinciguerra, V and Casuscelli, V and Alves, N and Murgia, M and Occhipinti, L and Biscarini, F (2016) Water-gated organic transistors on polyethylene naphthalate films. Flexible and Printed Electronics, 1. 025005-025005.

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Water-gated organic transistors have been successfully exploited as potentiometric transducers in a variety of sensing applications. The device response does not depend exclusively on the intrinsic properties of the active materials, as the substrate and the device interfaces play a central role. It is therefore important to fine-tune the choice of materials and layout in order to optimize the final device performance. Here, polyethylene naphthalate (PEN) has been chosen as the reference substrate to fabricate and test flexible transistors as bioelectronic transducers in liquid. PEN is a biocompatible substrate that fulfills the requirements for both bio-applications and micro-fabrication technology.Three different semiconducting or conducting polymer thin films employing pentacene, poly(3-hexylthiophene) or poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) were compared in terms of transconductance, potentiometric sensitivity and response time. The different results allow us to identify material properties crucial for the optimization of organic transistor-based transducers operating in water.

Item Type: Article
Depositing User: Cron Job
Date Deposited: 15 Nov 2018 01:54
Last Modified: 05 Aug 2021 05:15
DOI: 10.1088/2058-8585/1/2/025005