Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study of The $NO_2$ Gas Detect Properties of N-docosyl pyridinium(TCNQ) LB Film depending on Temperature

온도에 따른 N-docosyl pyridinium(TCNQ) LB막의 $NO_2$ 가스탐지 특성에 관한 연구

  • Yoo, B.H. (Dept. of Electrical and Control Eng., Hong-Ik Univ.) ;
  • Han, Y.J. (Dept. of Electrical and Control Eng., Hong-Ik Univ.) ;
  • Cho, H.K. (Dept. of Electrical and Control Eng., Hong-Ik Univ.) ;
  • Kim, H.S. (Dept. of Electrical and Control Eng., Hong-Ik Univ.) ;
  • Lee, C.H. (Dept. of Electrical and Control Eng., Hong-Ik Univ.) ;
  • Kim, J.S. (Dept. of Electrical and Control Eng., Hong-Ik Univ.)
  • 유병호 (홍익대학교 전기제어공학과) ;
  • 한영재 (홍익대학교 전기제어공학과) ;
  • 조형근 (홍익대학교 전기제어공학과) ;
  • 김형석 (홍익대학교 전기제어공학과) ;
  • 이창희 (홍익대학교 전기제어공학과) ;
  • 김정수 (홍익대학교 전기제어공학과)
  • Published : 1994.11.18
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Abstract

We have studied a properly of N-docosyl pyridinium(TCNQ) Langmuir-Blodgett film at room temperature with the $NO_2$ gas-detection characteristics. As a result, we have found that their conductivities were increased by 6 times at 5 layers(about $250{\AA}$ thickness) LB film. However, their reproducibility was not able to be measured at room temperature. Therefore, we must find their working temperature which was able to activate gas-detection characteristics. The $NO_2$ gas response experiments under 200 ppm concentration in $50^{\circ}C$ show that :here are increment of electrical conductivity by 8 times and 100 seconds of response time, and 200 seconds of recovery times at $60^{\circ}C$.

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