Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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VOCs(Volatile Organic Compounds) sensor using SnO2 nanowires

산화주석 나노선을 이용한 VOCs 센서

  • Hwang, In-Sung (Department of Materials Science & Engineering, Korea University) ;
  • Kim, Sun-Jung (Department of Materials Science & Engineering, Korea University) ;
  • Kim, Yoon-Sung (Department of Materials Science & Engineering, Korea University) ;
  • Ju, Byeong-Kwon (School of Electrical Engineering, Korea University) ;
  • Lee, Jong-Heun (Department of Materials Science & Engineering, Korea University)
  • 황인성 (고려대학교 신소재공학부) ;
  • 김선중 (고려대학교 신소재공학부) ;
  • 김윤성 (고려대학교 신소재공학부) ;
  • 주병권 (고려대학교 전기전자전파 공학부) ;
  • 이종흔 (고려대학교 신소재공학부)
  • Published : 2008.01.31
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Abstract

VOCs (Volatile Organic Compound) sensors were fabricated using $SnO_2$nanowires-based thin films and its gas sensing behaviors were studied. The $SnO_2$ nanowires synthesized from a thermal evaporation process were dispersed in a solution and the sensor film was prepared by dropping the slurry on the substrate with the electrodes and an embedded heater. The gas response (Ra/Rg, Ra: resistance in air, Rg: resistance in gas) to $30{\sim}40$ ppm Benzene, Ethyl Benzene, o-xylene were in the range of $39{\sim}42$, which were significantly higher than those to 50 ppm of CO, $CH_4$ and $C_3H_8$ ($12{\sim}19$).

Keywords

References

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