File(s) under permanent embargo
Step by step fabrication and characterization of Au (111) exposed single crystals
conference contribution
posted on 2010-01-01, 00:00 authored by N A Darwish, P K Eggers, Wenrong YangWenrong Yang, M N Paddon-Row, J J GoodingA detailed procedure for the fabrication of mechanically exposed Au (111) gold single crystal surfaces is reported. The procedure produced surfaces of high quality with high reproducibility. The method presented, has modifications compared to those reported previously in literature mainly with regards to the surface annealing temperatures used. The quality of the surfaces was confirmed by cyclic voltammetry in 0.1M H2SO4and scanning tunneling microscopy (STM) which showed large triangular (111) terraces of sizes of few (100nm2) in size. The quality of self assembled monolayers (SAMs) formed by 9-mercapto-1-nonanol on such surfaces was studied by impedance spectroscopy at 0V vs Ag/AgCl. The SAM was shown to behave as an ionic insulator and is well described as a Helmholtz capacitor model. These results demonstrate that the surfaces prepared by the described procedure are ideal for studies of thiolated thin films on gold surfaces, an area of interest for electrochemical and biosensing applications.
History
Event
Australian Research Council Nanotechnology Network. Conference (3rd : 2010 : Sydney, N.S.W.)Series
Australian Research Council Nanotechnology Network ConferencePagination
302 - 305Publisher
Institute of Electrical and Electronics EngineersLocation
Sydney, N.S.W.Place of publication
Piscataway, N.J.Publisher DOI
Start date
2010-02-22End date
2010-02-26ISBN-13
9781424452620Language
engPublication classification
E1.1 Full written paper - refereedCopyright notice
2010, IEEEEditor/Contributor(s)
[Unknown]Title of proceedings
ICONN 2010 : Proceedings of the 2010 International Conference on Nanoscience and NanotechnologyUsage metrics
Categories
No categories selectedLicence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC