Proceedings Paper
Oxygen photochemistry on Pt(111)| Format | Member Price | Non-Member Price |
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Paper Abstract
The 308 nm laser induced photodesorption of physisorbed and chemisorbed O2 on Pt(111) has been examined. Photodesorption of physisorbed O2 occurred with 9 X 10-20 cm2 cross section, and exhibited a sharp approximately cos34$ angular distribution and a structured O2 translational energy distribution, P(delta )(E(Tau )), which extended to E(Tau )equals1.2 eV. In contrast, photodesorption of chemisorbed O2 occurred with 1.8 X 10-20 cm(superscript 2 cross section, and exhibited a broad approximately cos$ angular distribution and a O2P(delta )(E(Tau )) which extended to only E(Tau )equals0.8 eV. Photodesorption mechanisms involving photoexcitation of substrate electrons are discussed.
Paper Details
Date Published: 21 July 1994
PDF: 11 pages
Proc. SPIE 2125, Laser Techniques for Surface Science, (21 July 1994);
Published in SPIE Proceedings Vol. 2125:
Laser Techniques for Surface Science
Hai-Lung Dai; Steven J. Sibener, Editor(s)
PDF: 11 pages
Proc. SPIE 2125, Laser Techniques for Surface Science, (21 July 1994);
Show Author Affiliations
Ian A. Harrison, Univ. of Virginia (United States)
Vladimir A. Ukraintsev, Univ. of Virginia (United States)
Vladimir A. Ukraintsev, Univ. of Virginia (United States)
Alexander N. Artsyukhovich, Univ. of Virginia (United States)
Published in SPIE Proceedings Vol. 2125:
Laser Techniques for Surface Science
Hai-Lung Dai; Steven J. Sibener, Editor(s)
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