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Issue 48, 2014
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Aqueous electrolyte-gated ZnO transistors for environmental and biological sensing

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Abstract

Electrolyte-gated transistors (EGTs) based on ZnO thin films, obtained by solution processing of suspensions of nanoparticles, have a low turn-on voltage (<0.5 V), a high on/off ratio and transconductance exceeding 0.2 mS. Importantly, the ZnO surface can be functionalized with a large variety of molecular recognition elements, making these devices ideal transducers in physiological and environmental monitoring. We present simple glucose-sensing and ion-selective EGTs, demonstrating the versatility of such devices in biosensing.

Graphical abstract: Aqueous electrolyte-gated ZnO transistors for environmental and biological sensing

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Supplementary files

Article information


Submitted
15 Sep 2014
Accepted
17 Oct 2014
First published
22 Oct 2014

J. Mater. Chem. C, 2014,2, 10277-10281
Article type
Communication
Author version available

Aqueous electrolyte-gated ZnO transistors for environmental and biological sensing

E. Bandiello, M. Sessolo and H. J. Bolink, J. Mater. Chem. C, 2014, 2, 10277
DOI: 10.1039/C4TC02075H

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