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http://dx.doi.org/10.4313/JKEM.2006.19.3.246

Study on Morphology Investigation and Charge-transfer Property of Self-assembled Viologen Monolayers  

Park Sang-Hyun (동아대학교 전기공학과 & CIIPMS)
Lee Dong-Yun (동아대학교 전기공학과 & CIIPMS)
Park Jae-Chul (영진전문대학 전자정보계열)
Kwon Young-Soo (동아대학교 전기공학과 & CIIPMS)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.3, 2006 , pp. 246-249 More about this Journal
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
QCM; Morphology; Cyclic voltammetry; EQCM; Mass change;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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