대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

Low-Temperature Operating $SnO_2$ Nanowire $NO_2$ Sensor

  • Jung, Tae-Hwan (Department of Electronic Engineering, Chungju National University) ;
  • Kwon, Soon-Il (Department of Electronic Engineering, Chungju National University) ;
  • Kim, Yeon-Woo (Department of Electronic Engineering, Chungju National University) ;
  • Park, Jae-Hwan (Department of Electronic Engineering, Chungju National University) ;
  • Lim, Dong-Gun (Department of Electronic Engineering, Chungju National University)
  • 발행 : 2008.06.18
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초록

The network structure of $SnO_2$ nanowires was fabricated on the electrodes by a simple thermal evaporation process from Sn metal powders and oxygen gas. The diameter of the nanowires was $20\;{\sim}\;60\;nm$ depending on the processing conditions. The operating temperature of the sensor could be decreased down below $50^{\circ}C$ by controlling the properties of the nanowires and the structures of the electrodes. The sensitivities were $10\;{\sim}\;15$ when the $NO_2$ concentrations were $10\;{\sim}\;50\;ppm$ at the operating temperature of $50^{\circ}C$.

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