Photodesorption and photochemical dynamics on roughened silver: Sulphur dioxide and carbonyl sulphide

Burke, Daren J., Vondrak, Tomas and Meech, Stephen R. ORCID: https://orcid.org/0000-0001-5561-2782 (2005) Photodesorption and photochemical dynamics on roughened silver: Sulphur dioxide and carbonyl sulphide. Surface Science, 585 (1-2). pp. 123-133. ISSN 0039-6028

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Abstract

The photodesorption of SO2, both monolayer and multilayer, from roughened silver has been investigated. The photodesorption cross-section is enhanced by a factor of 2.6 +/- 0.4 compared to the Ag(111) surface. The peak in the enhancement occurs at 340 nm. Time-of-flight mass spectrometry shows that the same mechanism operates on both the rough and Ag(111) surfaces. Coverage dependent experiments show that the enhancement is a first layer phenomenon, and coverage of greater than one monolayer effectively suppresses photodesorption. These data point to a surface plasmon resonance enhanced substrate mediated (hot electron attachment) photodesorption mechanism. (c) 2005 Elsevier B.V. All rights reserved.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Centre for Photonics and Quantum Science
Depositing User:	Rachel Smith
Date Deposited:	26 Jul 2011 15:31
Last Modified:	09 Feb 2023 13:37
URI:	https://ueaeprints.uea.ac.uk/id/eprint/34183
DOI:	10.1016/j.susc.2005.04.020

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