Growth of n-alkane films on a single-crystal substrate

Z. U. Wu, S. N. Ehrlich, B. Matthies, K. W. Herwig, P. Dai, U. G. Volkmann, Flemming Yssing Hansen, H. Taub

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The structure and growth mode of alkane films (n-C/sub n/H/sub 2n+2/; n=4, 6, 7) adsorbed on a Ag(111) surface have been investigated by synchrotron X-ray scattering. New models are proposed for the butane (n=4) and hexane (n=6) monolayer and butane bilayer structures. Specular reflectivity scans reveal that growth of all films is preempted between two and three layers by nucleation of bulk particles oriented with a single bulk crystal plane parallel to the film. In the case of butane, the bulk particles also have a fixed azimuthal relationship with the film resulting in complete epitaxy.
Original languageEnglish
JournalChemical Physics Letters
Volume348
Issue number3-4
Pages (from-to)168-174
ISSN0009-2614
Publication statusPublished - 2001

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