Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The effect of additive on $SnO_2$ gas sensor for improving stability

$SnO_2$계 가스 센서의 안정성 향상을 위한 산화물의 첨가 효과

  • 박광묵 (영남대학교 전자공학과) ;
  • 민봉기 (영남대학교 재료금속 공학부) ;
  • 최순돈 (영남대학교 재료금속 공학부) ;
  • 남효덕 (영남대학교 전기전자 공학부)
  • Published : 2002.07.08
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Abstract

$SnO_2$ powders were prepare by precipitating $Sn(OH)_4$ from an aqueous solution of $SnCl_4{\cdot}5H_2O$, pH 9.5. The effects of stability and sensitivity of $SnO_2$ thick film sensors added with various amounts, $SiO_2$, $Al_2O_3$, $ZrO_2$, $TiO_2$ have been investigated. It is shown that the 3wt% $Al_2O_3$ or $SiO_2$ can improve the stability of $SnO_2$ gas sensor at an operating temperature of $350^{\circ}C$.

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