Sensor Sensitivity Study of the Thin and Thick WO3 Films to Ozone

A. Borisov; O. Ivanova; S. Krutovertsev; A. Pislyakov

doi:10.4028/www.scientific.net/AST.45.1834

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Gas Sensing Properties of TiO₂ and SnO₂ Nanopowders Obtained through Gel Combustion
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Sensor Sensitivity Study of the Thin and Thick WO₃ Films to Ozone
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SAXS Characterization of Carbon Aerogels for Catalytic Supports
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Electrochemical Active Parts at Electrode/Electrolyte Interfaces for Solid Oxide Fuel Cells (SOFCs) by Isotope Labeling-SIMS Analysis
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Synthesis and Processing of Perovskite Oxides for Solid Oxide Fuel Cells Anode Fabrication
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Sensor Sensitivity Study of the Thin and Thick WO3...

Sensor Sensitivity Study of the Thin and Thick WO₃ Films to Ozone

Abstract:

Comparative study of WO3 thick film sensing features obtained by two different methods to ozone content in the air is presented. The thin films of 0.1-0.3 μ were obtained at evaporation temperature of 1100°C and pressure in chamber 1,33x10-8 bar. Films were formed by thick film technology from WO3 based paste. The films sensitivity to ozone is determined by working temperature of sensors. At the same time the characteristic stability depends on time and magnitude of temperature impulse. It was shown, that measurement sensor samples have high sensitivity to 70 ppb of ozone in the air.