Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on the $NO_2$ gas sensitivity characteristics of the CuTBP(Copper-tetra-tert-buthylphthalocyanine) LB films on the Interdigital Electrode

Interdigital Electrode위에 누적된 CuTBP(Copper-tetra-tert-buthylphthalocyanine) LB막의 $NO_2$ gas sensitivity 특성에 관한 연구

  • Koo, Ja-Ryong (School of Electronic & Electrical Eng. Hong-ik University) ;
  • Lee, Chang-Hee (School of Electronic & Electrical Eng. Hong-ik University) ;
  • Kim, Tae-Wan (Dept. of Physics. Hong-ik University) ;
  • Kim, Jung-Soo (School of Electronic & Electrical Eng. Hong-ik University)
  • 구자룡 (홍익대학교 전자전기공학부) ;
  • 이창희 (홍익대학교 전자전기공학부) ;
  • 김태완 (홍익대학교 물리학과) ;
  • 김정수 (홍익대학교 전자전기공학부)
  • Published : 1996.07.22
Download PDF
⟨ Previous Next ⟩

Abstract

The $NO_2$ GAS Sensitivity characteristic of CuTBP(Copper-tetra-tert-butylphthalocyanine) LB films were investigated through a study of current-voltage (I-V) characteristics with a variation of number of electrode finger pairs N ($1{\sim}25$). A concentration of 200ppm $NO_2$ gas was used. It was found that a conductance G increases monotonically as the number of interdigital electrode increases, and a Sensitivity, Reproducibility is stable. As far as a current is concerned, the current when N=25 is greater than that when N=1 by 70 or so. It indicates that the number of interdigital electrodes affects the current, sensitivity and stability. We knew that the $NO_2$ gas detector application possibility using a current of N=25.

Keywords