Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Dielectric Relaxation Phenomena of DMPC LB Thin Film

DMPC LB박막의 유전완화현상

  • 최영일 (조선이공대학 광전자정보학부) ;
  • 송진원 (동신대학교 대학원 전기전자공학과) ;
  • 조수영 (동신대학교 대학원 전기전자공학과) ;
  • 이경섭 (동신대학교 전기광전자공학부)
  • Published : 2003.07.10
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Abstract

Maxwell displacement current (MDC) measurement has been employed to study the dielectric property of Langmuir-films. A method for determining the dielectric relaxation time $\tau$ of floating monolayers on water surface is presented. WC flowing across monolayers is analyzed using a rod-like molecular model. It is revealed that the dielectric relaxation time $\tau$ of monolayers in the isotropic polar orientational phase is determined using a liner relationship between the monolayer compression speed ${\alpha}$ and the molecular area Am. Compression speed ${\alpha}$ was about 30, 40, 50mm/min.

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