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Preparation and Structure of Low-Density, Flat-Lying Decanethiol Monolayer From the Densely-Packed, Upright Monolayer on Gold

Published

Author(s)

Laura B. Picraux, Christopher D. Zangmeister, J Batteas

Abstract

This study investigates the formation of low-density, flat-lying decanethiol chemisorbed on Au prepared by heating the surface covered with a densely-packed, upright monolayer to a surface temperature above the onset of desorption. We determined conditions for preparing the low-density phase by observing the evolution of the photoemission spectrum as a function of the surface temperature using polarized ultraviolet light and by utilizing scanning tunneling microscopy. The preparation conditions were similar for single- and polycrystalline gold surfaces. Once the low density decanethiol phase was formed, reflection absorption infrared spectroscopy was employed to determine the orientation of the carbon chain backbone with respect to the Au surface.
Citation
Langmuir
Volume
22
Issue
1

Keywords

chemisorpton, decanethiol, gold, self-assembles monolayer

Citation

Picraux, L. , Zangmeister, C. and Batteas, J. (2006), Preparation and Structure of Low-Density, Flat-Lying Decanethiol Monolayer From the Densely-Packed, Upright Monolayer on Gold, Langmuir (Accessed April 22, 2024)
Created January 1, 2006, Updated February 19, 2017