PMID: 15245295Jul 13, 2004Paper

Ultrafast laser excitation of CO/Pt(111) probed by sum frequency generation: coverage dependent desorption efficiency

Physical Review Letters
Frédéric FournierBernard Bourguignon

Abstract

CO photodesorption from Pt(111) induced by femtosecond laser pulses is probed by IR+visible sum frequency generation (SFG). Steady state analysis of SFG spectra at varying CO pressure and laser fluence allows one to measure a approximately 5 orders of magnitude decrease of the photodesorption rate constant when CO coverage decreases from 0.37 to 0.07 monolayer. We ascribe this effect in the framework of the Menzel-Gomer-Redhead mechanism to electron delocalization in the CO layer. The lifetime of electronic excitation decreases when coverage decreases.

References

Aug 15, 1995·Physical Review. B, Condensed Matter·M BrandbygeD M Newns
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Citations

Jul 19, 2012·The Journal of Chemical Physics·Ken-ichi InoueYoshiyasu Matsumoto
Jul 11, 2016·The Journal of Chemical Physics·Sung-Young HongNicholas Camillone
Aug 31, 2004·The Journal of Chemical Physics·Frédéric FournierBernard Bourguignon
May 31, 2017·The Journal of Physical Chemistry Letters·Ahmed GhalgaouiBernard Bourguignon
Nov 19, 2008·Physical Chemistry Chemical Physics : PCCP·Hicham HamoudiVladimir A Esaulov
Nov 12, 2016·Physical Review Letters·Ken-Ichi InoueTomokazu Yasuike
Feb 9, 2005·Physical Review Letters·Frédéric FournierBernard Bourguignon
Oct 13, 2006·Chemical Reviews·Christian Frischkorn, Martin Wolf
Nov 3, 2007·The Journal of Physical Chemistry. a·Paul SzymanskiNicholas Camillone

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