Please use this identifier to cite or link to this item:
|Title:||In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS)||Authors:||Wong, Chee Cheong
Lee, Kwang Hong
Ang, X. F.
|Keywords:||DRNTU::Engineering::Materials::Plasma treatment||Issue Date:||2010||Source:||Wong, C. C., Romanto, F. , Lee, K. H., Ang, X. F., & Li, J. (2010). In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS). Journal of Nanoscience and Nanotechnology.||Series/Report no.:||Journal of nanoscience and nanotechnology||Abstract:||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.||URI:||https://hdl.handle.net/10356/92546
|ISSN:||1533-4880||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MSE Journal Articles|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.