| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9595099 | Surface Science | 2005 | 7 Pages |
Abstract
The influence of the size and shape of nanometer-scale silver particles on the photodesorption of NO from a graphite(0Â 0Â 0Â 1) surface has been investigated. The initial photodesorption yield from a silver precovered surface increases upto 20 times compared to the clean graphite surface under irradiation with 355Â nm photons. The yield fluctuates with cluster size and shows atleast one pronounced maximum. The observation is attributed to increased optical absorption due to particle plasmon excitations. Possible mechanisms for dissipation of the plasmon energy leading to NO desorption are discussed. The mechanism behind the photodesorption of NO from clean graphite(0Â 0Â 0Â 1) is also investigated and believed to be a substrate-mediated process.
Related Topics
Physical Sciences and Engineering
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Physical and Theoretical Chemistry
Authors
K. Wettergren, B. Kasemo, D. Chakarov,