Atom Probe Microscopy of Self-Assembled Monolayers: Preliminary Results

Langmuir ◽  
2010 ◽  
Vol 26 (8) ◽  
pp. 5291-5294 ◽  
Author(s):  
Baptiste Gault ◽  
Wenrong Yang ◽  
Kyle R. Ratinac ◽  
Rongkun Zheng ◽  
Filip Braet ◽  
...  
Keyword(s):  
Atom Probe ◽  
Self Assembled Monolayers ◽  
Probe Microscopy ◽  
Preliminary Results ◽  
Assembled Monolayers ◽  
Self Assembled

Atom Probe Study of 1-Octadecanethiol Self-Assembled Monolayers on Platinum (111) and (200) Surfaces

2021 ◽  
pp. 1-10
Author(s):  
Helena Solodenko ◽  
Patrick Stender ◽  
Guido Schmitz
Keyword(s):  
Laser Power ◽  
Surface Coverage ◽  
Atom Probe ◽  
Self Assembled Monolayers ◽  
Fragmentation Behavior ◽  
Carbon Backbone ◽  
Oriented Samples ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Carbon Molecules

Atom probe tomography measurements of self-assembled monolayers of 1-octadecanethiol on platinum tips were performed and their fragmentation behavior under the influence of different laser powers was investigated. The carbon backbone evaporates in the form of small hydrocarbon fragments consisting of one to four carbon atoms, while sulfur evaporates exclusively as single ions. The carbon molecules evaporate at very low fields of 5.9 V/nm, while S requires a considerably higher evaporation field of 23.4 V/nm. With increasing laser power, a weak, but noticeable trend toward larger fragment sizes is observed. No hydrocarbon fragments containing S are detected, indicating that a strong S–Pt bond has formed. The observed surface coverage of S fits well with literature values and is higher for (111)-oriented samples than for (200).

A New Approach to Understand the Adsorption of Thiophene on Different Surfaces: An Atom Probe Investigation of Self-Assembled Monolayers

Langmuir ◽  
2017 ◽  
Vol 33 (38) ◽  
pp. 9573-9581 ◽  
Author(s):  
Katja Eder ◽  
Peter J. Felfer ◽  
Baptiste Gault ◽  
Anna V. Ceguerra ◽  
Alexandre La Fontaine ◽  
...  
Keyword(s):  
Atom Probe ◽  
Self Assembled Monolayers ◽  
New Approach ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Probe Investigation
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