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 |
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ASJC Scopus subject areas
- Colloid and Surface Chemistry
- Physical and Theoretical Chemistry
Cite this
Reversible displacement of chemisorbed n-alkanethiol molecules on Au(111) surfaces. An atomic force microscopy study. / Liu, Gang-yu; Salmeron, M. B.
In: Langmuir, Vol. 10, No. 2, 02.1994, p. 367-370.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reversible displacement of chemisorbed n-alkanethiol molecules on Au(111) surfaces. An atomic force microscopy study
AU - Liu, Gang-yu
AU - Salmeron, M. B.
PY - 1994/2
Y1 - 1994/2
N2 - 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.
AB - 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.
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M3 - Article
AN - SCOPUS:0028381540
VL - 10
SP - 367
EP - 370
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 2
ER -