Ferrocenylalkylthiolate labeling of defects in alkylthiol self-assembled monolayers on gold

Yoon Suk Lee; R. Bruce Lennox

doi:10.1039/b613598f

Ferrocenylalkylthiolate labeling of defects in alkylthiol self-assembled monolayers on gold

Yoon Suk Lee, R. Bruce Lennox

Research output: Journal article publication › Journal article › Academic research › peer-review

27 Citations (Scopus)

Abstract

Coverage defects in alkylthiol self-assembled monolayers (SAMs) are critically important to function related to electron transfer from soluble redox probes. There is therefore a need for an accurate and direct measurement of the number and type of coverage defect in a range of SAMs. Ferrocenyldodecanethiol (FcC12SH) has been assessed as an electrochemically-addressable label of coverage defects. It is shown that short time exposure of a SAM to FcC 12SH leads to a quantifiable Fc coverage (ΓFc), with ΓFc < 1% readily measurable. The voltammetric signature of FcC12SH label is also able to differentiate types of defect in a given SAM. A number of SAM preparation conditions are assessed for the density and type of coverage defect. This labeling method therefore will be a useful tool for research into SAM property-function relationships. This journal is

Original language	English
Pages (from-to)	1013-1020
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	9
Issue number	8
DOIs	https://doi.org/10.1039/b613598f
Publication status	Published - 6 Mar 2007
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Atomic and Molecular Physics, and Optics

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10.1039/b613598f

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Ferrocenylalkylthiolate labeling of defects in alkylthiol self-assembled monolayers on gold

Abstract

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