Characteristics of Surface Electrical Conduction in $C_{22}$-Quinolium(TCNQ) LB Films

$C_{22}$-Quinolium(TCNQ) LB Film의 평면 전기전도 특성

  • 박승규 (홍익대학교 전기제어공학과) ;
  • 유덕수 (홍익대학교 과학기술연구소) ;
  • 김태완 (홍익대학교 물리학과) ;
  • 강도열 (홍익대학교 전기제어공학과)
  • Published : 1992.05.01

Abstract

$C_{22}$-Quinolium-TCNQ LB films were deposited on the glass substrates by Langmuir-Blodgett technique at room temperature. Transfer ratios and UV-visible absorption spectra were studied for X, Y and Z-Types. Absorption in Z-Type was higher than X and Y-Types, which indicates a better arrangement in this type. We have also investigated dc electrical conductivities and ac responses along the horizontal and vertical direction to the film surface. As a result, we are able to determine the capacitance of film and the measured horizontal conductivity was about $10^{-7}$~$10^{-8}$ S/cm.

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