Title: The Self-Assembly Mechanism of Alkanethiols on Au(111)
Abstract: The self-assembly mechanism of alkanethiol monolayers on the (111) surface of gold was discovered with the use of an ultrahigh-vacuum scanning tunneling microscope. Monolayer formation follows a two-step process that begins with condensation of low-density crystalline islands, characterized by surface-aligned molecular axes, from a lower density lattice-gas phase. At saturation coverage of this phase, the monolayer undergoes a phase transition to a denser phase by realignment of the molecular axes with the surface normal. These studies reveal the important role of molecule-substrate and molecule-molecule interactions in the self-assembly of these technologically important material systems.
Publication Year: 1996
Publication Date: 1996-05-24
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 801
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