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Spectral Widths in the Rate Equations for Photodesorption by Laser Infrared

Published online by Cambridge University Press:  21 February 2011

Joachim Heidberg
Joachim Heidberg*
Affiliation:
Institut für Physikalische Chemie und Elektrochemie der Universität Hannover, D-3000 Hannover, West Germany
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Abstract

Desorption and evaporation from solid surfaces are induced with high yield and wavelength selectivity by excitation of internal adsorbate vibrations with resonant laser infrared. Simple rate equations describe essential features of the process and relate the photoreaction rate and yield to the intensity, the duration of laser-solid surface interaction and molecular properties of the adsorbate. The significance in photodesorption of the experimentally determined spectral widths is shown. Considering the spectral widths in the theory brings the order of the calculated photo-desorption rates for CH3 F-NaCl and the measured rates (also yields) in better concert.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 29: Symposium I – Laser-Controlled Chemical Processing of Surfaces , 1983 , 333
Copyright
Copyright © Materials Research Society 1984

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References

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