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Semiconducting metal oxide-based gas sensor
Rafiq, Kazi Rifat Bin Staerz, Anna
Rafiq, Kazi Rifat Bin
Staerz, Anna
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2024-04
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Abstract
This research presents the development and characterization of advanced metal oxide semiconductor (MOX) gas sensors designed for the detection of reducing gases, specifically methane and propane. Employing semiconducting n-type oxides such as SnO2, In2O3, and WO3, the study explores the mechanisms by which these materials modulate resistance in response to varying gas concentrations. Through a detailed examination of the preparation methodologies, which include screen printing techniques on alumina substrates equipped with a gold heater for precise temperature control, the research investigates the hypothesis that tungsten oxide may exhibit enhanced performance attributes due to its reduced susceptibility to hydroxylation, compared to its counterparts. This work aims to offer a significant contribution to the field of gas detection technology, underpinning the potential for improved sensor performance and reliability.
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