COLL 18 |
| David E. Starr, Arthur Hotzel, Sebastian Kwiet, Alexander Grujic, and Martin Wolf. Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany |
| Due to their fundamental importance for chemical reaction dynamics a vast array of photochemical studies of adsorbates on single crystal metal surfaces have been performed. However, relatively few studies exist for supported metal clusters, which are technologically more relevant. These systems are also promising for optimum control of photochemical reactions of adsorbates on these clusters. Optimal control may be realized through exploitation of the field enhancement resulting from the plasmon resonance in these metal clusters. To this end, femtosecond two-pulse correlation measurements of adsorbates, specifically H2O and metal carbonyls, on quartz supported Ag clusters have been performed in order to understand the relevant timescales of the photodesorption/photodissociation processes in these systems. Eventually, these studies will allow the feasibility of optimum control of a surface photochemical reaction to be explored. |
|
Symposium in Memory of Arthur W. Adamson
8:30 AM-12:00 PM, Sunday, March 28, 2004 Marriott -- Orange County 4, Oral
Division of Colloid and Surface Chemistry |