Abstract
Atomic force microscopy has been used to study the structure and the stability of CH3(CH2)9SH and CH3(CH2)17SH molecules self-assembled on a Au(111) surface as a function of the load applied by the tip. Atomic resolution images taken during a loading and unloading cycle have revealed two sudden transitions corresponding to changes of the periodicity from a (√3 × √3) R30° (due to thiol layers) to a (1 × 1) (due to Au(111), and back to the (√3 × √3)R30° of thiol layers. These results represent the first observation that under high load, self-assembled n-alkanethiol molecules on Au(111) can be reversibly displaced on the substrate surface by a sharp tip during the scan.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 367-370 |
| Number of pages | 4 |
| Journal | Langmuir |
| Volume | 10 |
| Issue number | 2 |
| State | Published - Feb 1994 |
| Externally published | Yes |
ASJC Scopus subject areas
- Colloid and Surface Chemistry
- Physical and Theoretical Chemistry
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Liu, G., & Salmeron, M. B. (1994). Reversible displacement of chemisorbed n-alkanethiol molecules on Au(111) surfaces. An atomic force microscopy study. Langmuir, 10(2), 367-370.