Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/92546
Title: In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS)
Authors: Wong, Chee Cheong
Romanato, Filippo
Lee, Kwang Hong
Ang, X. F.
Li, J.
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
http://hdl.handle.net/10220/6206
ISSN: 1533-4880
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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