Electrical Properties by Effect of Metal Complex of G4-48PyP Dendritic Macromolcules Thin Films

G4-48PyP 덴드리틱 거대분자 박막의 금속이온 착체에 의한 전기적 특성

  • Son, J.H. (Dept. of Electrical Eng., Dong-A University) ;
  • Jung, S.B. (Dept. of Electrical Eng., Dong-A University) ;
  • Kim, B.S. (Dept. of Electrical Eng., Dong-A University) ;
  • Park, T.C. (Dept. of Electronics, Yeungjin Junior College) ;
  • Kwon, Y.S. (Dept. of Electrical Eng., Dong-A University)
  • 손정호 (동아대학교 전기공학과) ;
  • 정상범 (동아대학교 전기공학과) ;
  • 김병상 (동아대학교 전기공학과) ;
  • 박재철 (영진전문대학 전자정보계열) ;
  • 권영수 (동아대학교 전기공학과)
  • Published : 2002.11.09

Abstract

We attempted to fabricate a dendrimer Langmuir-Blodgett(LB) films containing 48 pyridinepropanol functional end group. As the pyridinepropanol functional group could form a complex structure with metal ions. In this study the samples for electrical measurement were fabricated to two types metal complexes with $Pt^{4+}$ and $Fe^{2+}$ ions by LB method. And we have investigated the surface activity at the air-water interface as well as the electrical properties for the monolayers of pure G4-48PyP dendrimer and its complex with metal ions($Pt^{4+}$ and $Fe^{2+}$ ions). In the surface pressure-area($\pi-A$) isotherms of the dendrimers, the stable condensed films formed at the air-water interface and the metal ions effect showed the difference on molecular behavior. We have studied the electrical properties of the ultra thin dendrimer LB films investigated by the current-voltage(I-V) characteristics of metal/dendrimer LB films/metal(MIM) structure. In conclusion, it is demonstrated that the metal ion around G4-48PyP dendrimer can contribute to make formation of network structure among dendrimers and it result from the change of electrical properties.

Keywords