Fabrication and characterization of ZnO:CuO electronic composites for their application in sensing processes
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2021
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Institute of Electrical and Electronics Engineers (IEEE)
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Abstract
Sensing behaviour of samples belonging to the system ZnO:CuO has been investigated. Samples with different proportions of ZnO and CuO have been sintered and exposed to a reducing agent as ethanol (C_2H_5OH). All the samples have been characterized not only from the point of view of the sensing properties but also regarding morphology, composition, crystallinity and luminescent properties in order to correlate these properties to the sensing behaviour. Sensitivity, response times, recovery and stability have been measured under exposure to ethanol vapour in concentrations 800, 4700 and 16000 ppm. Sensing cycles have been performed at three different temperatures: 25, 50 and 100 degrees C.
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©2021 IEEE
This work was supported in part by the Complutense University of Madrid, in part by Banco Santander through the Project UCM Santander 2019 under Grant PR87/19-22613, and in part by the Spanish Ministry of Science, Innovation and Universities under Project MINECO/FEDER-MAT2015-65274-R. The work of Belen Sotillo was supported by the Comunidad de Madrid (Ayudas del Programa de Atraccion de Talento) under Grant 2017-T2/IND-5465.