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http://dx.doi.org/10.5369/JSST.2013.22.6.444

ZnO-based Ethanol Gas Sensor  

Choi, Dong-Han (Dept. of Semiconductor Engineering, Cheongju University)
Publication Information
Journal of Sensor Science and Technology / v.22, no.6, 2013 , pp. 444-449 More about this Journal
Abstract
ZnO-based ethanol gas sensors were fabricated by the painting method and their electrical and ethanol gas sensing characteristics were investigated. The ZnO-Pt (1 wt.%) film heat treated at $400^{\circ}C$, for 2 hrs. in air showed the highest sensitivity to ethanol gas in air at an operating temperature of $250^{\circ}C$ The sensitivity of the gas sensors to 1000 ppm ethanol in air at $250^{\circ}C$ was 8.7 and rising time and falling time of the gas sensors were 3.12 minutes and 25 minutes, respectively.
Keywords
Gas sensors; Oxide semiconductors; ZnO; Ethanol gas;
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