Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Fabrication and Characteristics of Thick Film Alcohol Gas Sensors

후막형 알코올 센서의 제조 및 특성

  • Choi Dong-Han (School of Computer & Communication Engineering, Chongju University)
  • 최동한 (청주대학교 정보통신공학부)
  • Published : 2004.06.01
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Abstract

Thick film alcohol gas sensors were fabricated. Their electrical properties and gas sensing characteristics were investigated. The sensitivity of $1wt.\%$ Pd-doped ${\gamma}-Fe_2O_3$ thick film heat treated at $400^{\circ}C$, 2hrs was $74\%$ to 500ppm alcohol gas at the operating temperature of $250^{\circ}C$. The selectivity of the film to alcohol was good. It showed fast response time to low concentrations of alcohol in air, hence this sensor can be used as a breath sensor.

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