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
Personal Author(s):
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.
Descriptors:
Subject Categories:
- Inorganic Chemistry
- Organic Chemistry
- Optics