2 November 2016 ZnO nanorod/wire based gas sensors (Conference Presentation)
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Proceedings Volume 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV; 99560J (2016); doi: 10.1117/12.2238314
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States
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.
Conference Presentation
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Jing Liu, Xuexin Duan, Daihua Zhang, Qing Zhang, Qiankun Zhang, Yan Chen, "ZnO nanorod/wire based gas sensors (Conference Presentation)", Proc. SPIE 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV, 99560J (2 November 2016); doi: 10.1117/12.2238314; http://dx.doi.org/10.1117/12.2238314
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KEYWORDS
Zinc oxide

Gas sensors

Mechanical sensors

Nanorods

Sensors

Imaging spectroscopy

Nanolithography

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