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Performance of a CO2 Impedimetric Sensor Prototype for Air Quality Monitoring
CEIT and Tecnun, University of Navarra, Manuel de Lardizábal 15, 20018 San Sebastian, Spain
CIDETEC, P. Miramón 196, 20009 San Sebastián, Spain
* Author to whom correspondence should be addressed.
Received: 25 March 2011; in revised form: 20 April 2011 / Accepted: 22 April 2011 / Published: 5 May 2011
Abstract: Carbon dioxide detection is a relevant issue in many fields, and this work focuses on the use of a BaTiO3-CuO sputtered thin film layer in a gas sensor prototype for air quality measurements. For this, a double side sensor was fabricated, with a Pt heater on one side and the sensing layer over the electrodes on the other side. The uniformity of the temperature on the sensing layer was tested and further tests to check its sensing performance were carried out. Humidity influence in the detection was found to be almost negligible within the usual range in air quality measurements and repeatability tests show satisfactory results for air quality control purposes.
Keywords: carbon dioxide; air quality; thin film; BaTiO3-CuO
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Mandayo, G.G.; Herrán, J.; Castro-Hurtado, I.; Castaño, E. Performance of a CO2 Impedimetric Sensor Prototype for Air Quality Monitoring. Sensors 2011, 11, 5047-5057.
Mandayo GG, Herrán J, Castro-Hurtado I, Castaño E. Performance of a CO2 Impedimetric Sensor Prototype for Air Quality Monitoring. Sensors. 2011; 11(5):5047-5057.
Mandayo, Gemma García; Herrán, Jaime; Castro-Hurtado, Irene; Castaño, Enrique. 2011. "Performance of a CO2 Impedimetric Sensor Prototype for Air Quality Monitoring." Sensors 11, no. 5: 5047-5057.