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Published on: May 2, 2014
Electrospun ZnO Nanowires as Gas Sensors for Ethanol Detection
Wan-Yu Wu1, Jyh-Ming Ting, Po-Jung Huang
1Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan. jting@mail.ncku.edu.tw.
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%.
