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A Polyaniline/WO3 Nanocomposite Layer Based Surface Acoustic Wave NO2 Gas Sensors

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5 Author(s)
Chi-Yen Shen ; Electr. Eng. Dept., I-Shou Univ., Kaohsiung, Taiwan ; Cheng Yung-Hsi ; Shih-Han Wang ; Shih-Hao Kuo
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In this work, we report a surface acoustic wave (SAW) sensor based on a polyaniline/WO3 nanocomposite layer to detect NO2. The presented SAW sensor exhibited reversibility, sensitivity, and repeatability when NO2 was in ppm level at room temperature. The frequency shift ¿f/fo of sensor was 0.58 ppm to 29 ppm NO2.

Published in:

Innovative Computing, Information and Control (ICICIC), 2009 Fourth International Conference on

Date of Conference:

7-9 Dec. 2009