Accession Number:

ADA279910

Title:

Scanning Tunneling Microscopy Studies of Self-Assembled Monolayers of Alkanethiols on Gold

Descriptive Note:

Technical rept.

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CHEMISTRY

Report Date:

1994-04-05

Pagination or Media Count:

16.0

Abstract:

We have used scanning tunneling microscopy to probe the molecular scale structures of pure and mixed composition self-assembled monolayers of CH3CH215SH and CH302CCH215SH on gold. A predominant defect structure is found for both films and is assigned as a void defect in the thiolate overlayer. The mixed composition films are observed to phase segregate into domains of the pure component thiolates. Time-lapse series of scanning tunneling microscope images reveal kink-driven motion at step edges and exchange of thiolate molecules on terraces.

Subject Categories:

  • Inorganic Chemistry
  • Organic Chemistry
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE