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http://dx.doi.org/10.3740/MRSK.2008.18.7.367

NO Sensing Characteristics of ZnO Nanorod Prepared by Ultrasound Radiation Method  

Park, Sun-Min (Department of Nano-Science & Technology, Kyungpook National University)
Zhang, Shao-Lin (Department of sensor & display engineering, Kyungpook National University)
Huh, Jeung-Soo (Department of Materials Science & Metallurgy, Kyungpook National University)
Publication Information
Korean Journal of Materials Research / v.18, no.7, 2008 , pp. 367-372 More about this Journal
Abstract
ZnO nanorod gas sensors were prepared by an ultrasound radiation method and their gas sensing properties were investigated for NO gas. For this procedure, 0.01, 0.005 and 0.001M of zinc nitrate hydrate [$Zn(NO_3)_2\;{\cdot}\;6H_2O$] and hexamethyleneteramine [$C_6H_{12}N_4$] aqueous solutions were prepared and then the solution was irradiated with high intensity ultrasound for 1 h. The lengths of ZnO nanorods ranged from 200 nm to 500 nm with diameters ranging from 40 nm to 80 nm. The size of the ZnO nanorods could be controlled by the concentration of solution. The sensing characteristics of these nanostructures were investigated for three kinds of sensor. The properties of the sensors were influenced by the morphology of the nanorods.
Keywords
ZnO nanorods; ultrasound radiation; gas sensor; NO;
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