Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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${\gamma}-Fe_2O_3$ Thick Film City Gas Sensor

${\gamma}-Fe_2O_3$ 후막형 도시가스 감지 소자

  • Choi, Dong-Han (Dept. of Electronics, Kyungpook National University) ;
  • Lee, Won-Kee (Dept. of Electronics, Kyungpook National University) ;
  • Lee, Duk-Donq (Dept. of Electronics, Kyungpook National University) ;
  • Sohn, Hyunq-Ki (Dept. of Electronics, Kyungpook National University)
  • 최동한 (경북대학교 공과대학 전기공학과) ;
  • 이원기 (경북대학교 공과대학 전기공학과) ;
  • 이덕동 (경북대학교 공과대학 전기공학과) ;
  • 손병기 (경북대학교 공과대학 전기공학과)
  • Published : 1987.07.03
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Abstract

${\gamma}-Fe_2O_3$ thick film city gas sensors have been fabricated by using screen printing method. The sensitivity to $C_4H_{10}$ and, $CH_4$ was about 90% and 65% respectively. The devices heated in air at $400^{\circ}C$ for 1 hour exhibited the highest sensitivity (-90%) to $C_4H_{10}$ at the operating temperature of $300-350^{\circ}C$. And they had good selectivity for $C_4H_{10}$ in comparistion with other gases (CO, $H_2$, $C_3H_8$ etc).

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