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Proceedings Paper

ZnO nanorod/wire based gas sensors (Conference Presentation)
Author(s): Jing Liu; Xuexin Duan; Daihua Zhang; Qing Zhang; Qiankun Zhang; Yan Chen

Paper Abstract

ZnO nanorod/wire is a nanomaterial that possessing high surface area to volume ratio and excellent optical and electrical properties, indicating its promising sensing capabilities in various applications. Here, we present the research work of ZnO nanorod/wire based sensors carried out in our lab, which were used in the optical, electrical and mechanical sensing areas, respectively. In optical sensing, a ZnO nanorod array was fabricated at the endface of an optical fiber, forming a sensing probe, whose interference spectrum shifts upon the exposure to gas analyte. In electrical sensing, the ZnO nanowires decorated extended-gate field-effect transistor was used as a pH sensor, whose source-drain current changed dramatically under different pH values when applying the same gate voltage. Finally, regarding to the mechanical sensing, the ZnO nanorods were applied to the surface of the solidly mounted resonator for gas detecting, whose resonant frequency shifts due to the absorption of gas analytes.

Paper Details

Date Published: 2 November 2016
PDF: 1 pages
Proc. SPIE 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV, 99560J (2 November 2016); doi: 10.1117/12.2238314
Show Author Affiliations
Jing Liu, Tianjin Univ. (China)
Xuexin Duan, Tianjin Univ. (China)
Daihua Zhang, Tianjin Univ. (China)
Qing Zhang, Tianjin Univ. (China)
Qiankun Zhang, Tianjin Univ. (China)
Yan Chen, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 9956:
Ultrafast Nonlinear Imaging and Spectroscopy IV
Zhiwen Liu, Editor(s)

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