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Mechanisms for Excited Neutral and Negative and Positive Ion Desorption from Surfaces

  • David E. Ramaker
Part of the Springer Series in Surface Sciences book series (SSSUR, volume 4)

Abstract

Previous work in electron/photon stimulated desorption (ESD/PSD), utilizing a variety of experimental and theoretical tools, has provided considerable progress towards our understanding of the desorption of ions from covalent systems [1–3]. Comparative investigations of dissociation processes in gas phase, condensed (solid), and chemisorbed systems (e.g.,CO(g), CO(s), and CO/Ru (001), or H2O(g), H2O(s), and OH/Ti) have been very helpful in understanding the desorption of ions from molecularly chemisorbed systems [4,5]. Identification of the excited ionic states responsible for the dissociation or desorption, which can often be made by comparison with photoemission and electron-electron coincidence data, reveals that they possess widely different electronic character and hence arise from widely different excitation mechanisms [4,5].

Keywords

Electron Attachment Antibonding Orbital Electron Impact Excitation Auger Decay Desorption Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • David E. Ramaker
    • 1
  1. 1.Department of ChemistryGeorge Washington UniversityUSA

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