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Electrospun ZnO Nanowires as Gas Sensors for Ethanol Detection

Author(s): Wu Wan-Yu | Ting Jyh-Ming | Huang Po-Jung

Journal: Nanoscale Research Letters
ISSN 1931-7573

Volume: 4;
Issue: 6;
Start page: 513;
Date: 2009;
Original page

Keywords: Zinc oxide | Electrospinning | Ethanol sensor | Sensitivity

Abstract ZnO nanowires were produced using an electrospinning method and used in gas sensors for the detection of ethanol at 220 °C. This electrospinning technique allows the direct placement of ZnO nanowires during their synthesis to bridge the sensor electrodes. An excellent sensitivity of nearly 90% was obtained at a low ethanol concentration of 10 ppm, and the rest obtained at higher ethanol concentrations, up to 600 ppm, all equal to or greater than 90%.
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