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Langmuir. 2005 Nov 08;21(23):10260-3. doi: 10.1021/la050814z.

Ambient-pressure vapor deposition of octanethiol self-assembled monolayers.

Langmuir : the ACS journal of surfaces and colloids

Amanda L Deering, Staci M Van Lue, S Alex Kandel

PMID: 16262271 DOI: 10.1021/la050814z

Abstract

Scanning tunneling microscopy was used to characterize self-assembled monolayers (SAMs) of octanethiol on Au(111), created using vapor deposition at elevated temperatures and ambient pressure. Monolayers contained large, close-packed ( radical3 x radical3)R30 degrees domains with sizes considerably larger than those typically formed from conventional solution-phase preparation and with crystallographically straight domain boundaries. New striped surface phases were also observed, including a 13 x radical3 phase with a density that was 69% of the close-packed density; these striped phases appeared topographically higher in STM images than close-packed monolayers.

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