An In Situ Analysis of a Self-Assembly Process of an α-Imidazolyl-ω-Alkanethiol on Gold by a Quartz Crystal Analyzer

A self-assembly process of N-[2-(4-imidazolyl)ethyl]11-mercaptoundecan-amide (Im-SH) on gold surface was monitored by in situ measurements of the resonant frequency and the resonant resistance of a quartz crystal analyzer (QCA) together with optical and atomic force microscopy. The Q factor was appl...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 1999-11, Vol.337 (1), p.253-256
Main Authors: Kim, Jong Min, Song, Seong-Hun, Chang, Sang-Mok, Kim, Jin Un, Lee, Burm-Jong, Muramatsu, Hiroshi, Miyake, Jun
Format: Article
Language:English
Subjects:
AFM
Chemistry
Exact sciences and technology
General and physical chemistry
imidazole
monolayer
QCA
self-assembly
Solid-liquid interface
Surface physical chemistry
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Summary:A self-assembly process of N-[2-(4-imidazolyl)ethyl]11-mercaptoundecan-amide (Im-SH) on gold surface was monitored by in situ measurements of the resonant frequency and the resonant resistance of a quartz crystal analyzer (QCA) together with optical and atomic force microscopy. The Q factor was applied to evaluate the homogeneity of the adsorbed monolayer. A two-step process was involved in the monolayer formation. At the first stage, a fast adsorption to the surface up to 90% was produced, and then the dot-like Im-SH monolayers became to reorganize and reassemble to form a much larger aggregated monolayer.
ISSN:1058-725X
DOI:10.1080/10587259908023425