Surface migration dynamics of a planar organic molecule studied by pulsed molecular beam scattering

Authors
Shimada, T Hashimoto, R Koide, J Kamimuta, Y Koma, A
Citation
T. Shimada et al., Surface migration dynamics of a planar organic molecule studied by pulsed molecular beam scattering, SURF SCI, 470(1-2), 2000, pp. L52-L56
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
470
Issue
1-2
Year of publication
2000
Pages
L52 - L56
Database
ISI
SICI code
0039-6028(200012)470:1-2<L52:SMDOAP>2.0.ZU;2-C
Abstract
Pulsed molecular beam scattering technique was applied to analyze the dynam ics of a large planar molecule migrating on various surfaces (Au(1 1 1), gr aphite(0001), mica (001), amorphous silicon oxide). It was found that molec ules can stay on the surface for seconds without condensation. Activation e nergies have a magnitude comparable to those of a single ionic or covalent bonding, which reflects the additivity of the van der Waals interaction. Po ssible contribution of the diffusion to the surface residence time is discu ssed. (C) 2000 Elsevier Science B.V. All rights reserved.