The European Physical Journal D

, Volume 63, Issue 1, pp 97–102 | Cite as

On the validity of the electron transfer model in photon emission from ion bombarded vanadium surfaces

  • M. Ait El FqihEmail author
  • A. El Boujlaïdi
  • R. Jourdani
  • A. Kaddouri
Atomic and Molecular Collisions Regular Article


The spectral structure of the radiation (250–500 nm) emitted during sputtering of clean and oxygen-covered polycrystalline vanadium and V2O5 by 5 keV Kr+ ions is presented. The optical spectra obtained by bombarding the vanadium target consist of series of sharp lines, which are attributed to neutral and ionic excited V. The same lines are observed in the spectra of V2O5 and vanadium when oxygen is present. The absolute intensities of VI and VII lines are measured under similar conditions for all spectra. The difference in photon yield from the clean and oxide vanadium targets is discussed in terms of the electron-transfer processes between the excited sputtered and electronic levels of the two types of surfaces. We have examined the existing models of ionisation, excitation, neutralisation and de-excitation of atomic particles in the vicinity of solid surfaces. Continuum radiation was also observed and interpreted as a result of the emission of excited molecules of the metal-oxide.


Vanadium Spectral Line Vanadium Oxide Excited Molecule Continuum Radiation 
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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • M. Ait El Fqih
    • 1
    • 2
    Email author
  • A. El Boujlaïdi
    • 1
  • R. Jourdani
    • 1
  • A. Kaddouri
    • 1
  1. 1.Equipe de Spectroscopie & Imagerie Atomiques des Matériaux, Université Cadi AyyadMarrakechMaroc
  2. 2.Faculté Polydisciplinaire, Université Chouaib DoukkaliEl JadidaMaroc

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