Please use this identifier to cite or link to this item:
https://open.uns.ac.rs/handle/123456789/3415
Title: | TiO<inf>2</inf>-Based Thick Film pH Sensor | Authors: | Simić, Maja Manjakkal L. Zaraska K. Stojanović, Goran Dahiya R. |
Issue Date: | 15-Jan-2017 | Journal: | IEEE Sensors Journal | Abstract: | © 2001-2012 IEEE. Miniaturized electrochemical pH sensors are increasingly in demand for applications such as online monitoring of water quality and health monitoring. The metal oxides are the best candidates for sensing electrodes of such sensors as they offer high chemical stability. In this paper, we present a novel approach to obtain interdigitated conductimetric pH sensor using screen printing of TiO2 thick film on an alumina substrate. The microstructural and crystalline properties of the TiO2 sensitive film were examined with scanning electron microscopy and Raman spectroscopy. The impedance spectroscopic studies of the fabricated thick film sensor were carried out in the frequency range of 5-20 kHz for the test solutions in the pH range of 4-10 and it was observed that the impedance of the film is distinctly dependent on pH. Using the measured impedance data, we have also proposed an equivalent RC network model for the fabricated pH sensor. The physical meaning of the model parameters was determined by electrochemical impedance spectroscopic analysis, and through statistical analysis it was found that all parameters are distinctly pH-dependent. | URI: | https://open.uns.ac.rs/handle/123456789/3415 | ISSN: | 1530437X | DOI: | 10.1109/JSEN.2016.2628765 |
Appears in Collections: | FTN Publikacije/Publications |
Show full item record
SCOPUSTM
Citations
54
checked on May 10, 2024
Page view(s)
26
Last Week
11
11
Last month
0
0
checked on May 10, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.