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In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS)

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In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS)

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dc.contributor.author Wong, Chee Cheong.
dc.contributor.author Romanato, Filippo.
dc.contributor.author Lee, Kwang Hong.
dc.contributor.author Ang, X. F.
dc.contributor.author Li, J.
dc.date.accessioned 2010-03-23T05:58:31Z
dc.date.available 2010-03-23T05:58:31Z
dc.date.copyright 2010
dc.date.issued 2010-03-23T05:58:31Z
dc.identifier.citation 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.
dc.identifier.issn 1533-4880
dc.identifier.uri http://hdl.handle.net/10220/6206
dc.description.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.
dc.language.iso en
dc.relation.ispartofseries Journal of nanoscience and nanotechnology
dc.subject DRNTU::Engineering::Materials::Plasma treatment.
dc.title In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS)
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.description.version Accepted version
dc.identifier.rims 151099

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