Spay Pyrolyzed Nanostructured Tin Dioxide Thin Films Doped by Cobalt: Correlation between Structural and Gas Sensing Characteristics

Abstract:

Effect of Co-doping on gas sensing, electrophysical and structural properties of the SnO₂ films deposited by spray pyrolysis has been studied. It is found that the influence of Co-doping on parameters of the SnO₂-based gas sensors depends on the concentration of doping additives and could be accompanied by either improvement of sensor parameters at low levels of doping (C_Co< 2-4 %) or degradation of the gas sensor operation characteristics while the concentration of additives exceeds 2-4%. An explanation of observed effects is given.

• Periodical: Applied Mechanics and Materials (Volume 377)
• Pages: 180-185
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.377.180
• Online since: August 2013
• Authors: Ghenadii Korotcenkov, Iulia Boris, Vladimir Brinzari, Beongki Cho
• Keywords: Characterization, Co, Doping, Mechanism, Sensor Response, SnO₂, Spray Pyrolysis

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