Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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NO Sensing Characteristics of ZnO Nanorod Prepared by Ultrasound Radiation Method

초음파 처리에 의해 합성된 ZnO 나노로드 센서의 일산화질소 가스에 대한 감응 특성

  • 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)
  • 박순민 (경북대학교 나노과학기술학과) ;
  • 쟝샤오린 (경북대학교 센서 및 디스플레이공학과) ;
  • 허증수 (경북대학교 금속신소재공학과)
  • Published : 2008.07.27
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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

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