In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS).
Copyright policy )In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS).
Thermal desorption investigations on self-assembled monolayers (SAMs) had previously been carried out using techniques such as thermal desorption spectroscopy (TDS), scanning tunneling microscopy (STM) and X-ray photo-electron spectroscopy (XPS). In this paper, the thermal dissociation of alkanethiols (CnH2n+1SH) at various chain lengths (n = 6, 12, 18) on sputtered gold layers was monitored in-situ using the Kretschmann surface plasmon resonance configuration on a spectroscopic ellipsometer. We found that the longest alkanethiol (C18 exhibits the greatest thermal stability, manifested by the least amount of angular shift, during heating, in the resonant spectral features. Predictions of desorption temperatures from SPRS for the longer chain thiols are in good agreement with XPS measurements.
Accepted version
- National Research Council Italy
- Nanyang Technological University Singapore
- University of Padua Italy
- Istituto Officina dei Materiali Italy
DRNTU::Engineering::Materials::Plasma treatment, Self-assembled monolayers; Surface plasmon resonance; alkanethiols; thermal desorption, 540, 530
DRNTU::Engineering::Materials::Plasma treatment, Self-assembled monolayers; Surface plasmon resonance; alkanethiols; thermal desorption, 540, 530
selected citations These citations are derived from selected sources.This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).6 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!