Design and Fabrication of Thick Film Dissolved Oxygen Sensor Based on RuO2 Working Electrodes for Water Quality Monitoring
- 1 March 2018
- journal article
- Published by Trans Tech Publications, Ltd. in Materials Science Forum
- Vol. 917, 59-63
- https://doi.org/10.4028/www.scientific.net/msf.917.59
Abstract
A Dissolved Oxygen (DO) sensor has been designed and fabricated on an 8.5 x 22.5 mm Alumina substrate using thick film technology. The structure of the sensor device consisted of AgPd working/counter electrode, Ag/AgCl reference electrode, RuO2 active layer, KCl electrolyte, and TiO2 membrane. Formation of the Ag/AgCl reference electrode was done by chlorination of Ag layer using FeCl3, and the TiO2 membrane was formed by screen printing of TiO2 paste. Measurement was done to study the sensor’s performance based from the current-voltage characteristics between 1.1 – 1.6 V. The results showed that a stable diffusion current was obtained when the input voltage was 1.4 V, resulting in the best sensor performance with a sensitivity of 0.560 μA l/mg and a stable step response time of 4 min. The device showed highly potential to be used as candidate for online water quality monitoring system.This publication has 14 references indexed in Scilit:
- Challenges and solutions for advanced sensing of water infrastructures in urban environmentsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Submersible Spectrofluorometer for Real-Time Sensing of Water QualitySensors, 2015
- A low-cost autonomous optical sensor for water quality monitoringTalanta, 2015
- Technologies for Printing Sensors and Electronics Over Large Flexible Substrates: A ReviewIEEE Sensors Journal, 2014
- Applications of Wireless Sensor Networks in Marine Environment Monitoring: A SurveySensors, 2014
- A disposable cobalt-based phosphate sensor based on screen printing technologyScience in China Series B Chemistry, 2014
- Low-cost carbon thick-film strain sensors for implantable applicationsJournal of Micromechanics and Microengineering, 2010
- Development of a Surface Acoustic Wave Sensor for In-Situ Monitoring of Volatile Organic CompoundsSensors, 2003
- Development of a screen-printed thick-film nitrate sensor based on a graphite-epoxy composite for agricultural applicationsSensors and Actuators B: Chemical, 2003
- Development of a gas sensor by thick film technology for automotive applications: choice of materials—realization of a prototypeMaterials Science and Engineering: C, 2002