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

Autor: Hiroshi Muramatsu, Jin Un Kim, Burm-Jong Lee, Sang-Mok Chang, Jong-Min Kim, Jun Miyake, Seong-Hun Song
Rok vydání: 1999
Předmět:
Zdroj: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 337:253-256
ISSN: 1058-725X
DOI: 10.1080/10587259908023425
Popis: 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.
Databáze: OpenAIRE