Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Study on Morphology Investigation and Charge-transfer Property of Self-assembled Viologen Monolayers

자기조립된 Viologen 단분자막의 표면이미지 관찰과 계면전하이동 특성 연구

  • 박상현 (동아대학교 전기공학과 & CIIPMS) ;
  • 이동윤 (동아대학교 전기공학과 & CIIPMS) ;
  • 박재철 (영진전문대학 전자정보계열) ;
  • 권영수 (동아대학교 전기공학과 & CIIPMS)
  • Published : 2006.03.01
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Abstract

We fabricated self-assembled monolayers(SAMs) onto quartz crystal microbalance(QCM) using viologen, which has been widely used as electron acceptor and electron transfer mediator. We determined the time dependence on resonant frequency shift during self-assembly process and observed the morphology of self-assembled monolayers by STM and investigated the electrochemical behavior of SAMs by cyclic voltammetry. Electrochemical deposition of viologen was investigated using electrochemical quartz crystal microbalance(EQCM). The redox reactions of viologen were highly reversible and the EQCM has been employed to monitor the electrochemically induced adsorption of SAMs during the redok reactions. The total frequency change was about 9.5 Hz, and 7.1 Hz. From the data, we could know the mass change was about 10.16 ng and 7.60 ng, respectively. Finally, the EQCM has been employed to monitor the electrochemically induced adsorption of self-assembled monolayers on Au surfaces.

Keywords

References

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