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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지

Self-Assembly and Electrochemical Properties of Viologen Particles

Viologen 분자의 자기조립과 전기화학적 특성

  • Lee, Dong-Yun (Department of Electrical Engineering, Dong-A University) ;
  • Park, Sang-Hyun (Department of Port and Logistics System, Dong-A University) ;
  • Shin, Hoon-Kyu (Department of Electrical Engineering, Dong-A University) ;
  • Kwon, Young-Soo (Department of Electrical Engineering, Dong-A University)
  • 이동윤 (동아대학교 전기공학과) ;
  • 박상현 (동아대학교 항만물류시스템공학과) ;
  • 신훈규 (동아대학교 전기공학과) ;
  • 권영수 (동아대학교 전기공학과)
  • Published : 2004.11.11
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, investigations of the SAMs(self-assembled monolayers) of a thiol-fuctionalized viologen derivatives, $V_8SH$ and $SH_8V_8SH$, where, V is N,N'-dialkylbipyridinium (i.e. a viologen group), have been carried out by elucidate voltammetry date. The redox reactions are highly reversible and can be cycled many times without significant side reaction, which has been known as a nano-gram order mass detector through resonant frequency change self-assembly process of the viologen has been investigated with $QCM({\Delta}F)$. The assembling process of the $V_8SH$ and $SH_8V_8SH$ monolayers can be finished completely in about 1 hour. The measured frequency shift for $V_8SH$ and $SH_8V_8SH$ were about 351 and 172 Hz, respectively. From these values, we calculated that the mass adsorbed $V_8SH$ and $SH_8V_8SH$ were about 375 and 183 ng. We believe that this mass loss is caused by the simultaneous loss of the anions present within the monolayer for charge compensation of the viologen dications and some solvent.

Keywords