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Abstract
Ion sensors with blocked interfaces, such as coated-wire electrodes (CWEs) and ion-selective field effect transistors (ISFETs), are increasingly being used as alternatives to traditional ion-selective electrodes (ISEs). This work provides insights into the behaviour of ionophore-doped membranes in solution, where one side completely blocks ion transfer, using the Nernst-Planck-Poisson (NPP) model, including reaction terms. Extensive investigations were conducted, demonstrating that the NPP model provides reasonable predictions, as well as insight into the interplay between interfacial kinetics, complexation, diffusion and electrical processes. Model validation is achieved through its application to and analysis of experimental results obtained for AlGaN/GaN ISFETs with ionophore-doped membranes.
Original language | English |
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Pages (from-to) | 499-508 |
Number of pages | 10 |
Journal | Sensors and Actuators, B: Chemical |
Volume | 250 |
DOIs | |
Publication status | Published - 1 Oct 2017 |
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Dive into the research topics of 'Description of ionophore-doped membranes with a blocked interface'. Together they form a unique fingerprint.Projects
- 1 Finished
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Transistor-based sensor technology for fast, reliable and accurate in situ monitoring of recycled wastewater.
Parish, G. (Investigator 01), Nener, B. (Investigator 02), Baker, M. (Investigator 03), Myers, M. (Investigator 04) & Mishra, U. (Investigator 05)
ARC Australian Research Council
1/01/14 → 30/06/17
Project: Research