Oxygen interaction with Cu(100) studied by AES, ELS, Leed and work function changes

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Abstract

The interaction of oxygen with Cu(100) surfaces was investigated from 85 to 800 K by AES, ELS, LEED and work function change. At T⩾300 K three different states of oxygen bonding are observed:

1. Chemisorption of oxygen (dosages up to ∼102L), indicated by an increase of the work function change Δφ and O(KLL) signal height.

2. Incorporation of oxygen into the Cu sublayer with further oxygen uptake accompanied by a decrease of Δφ, and a shift of the O(KLL) Auger transition to lower energy (∼102−106L).

3. Growing of Cu(I) oxide, characterized by an increase of Δφ, shifts of the oxygen and copper Auger transitions and significant changes in ELS and AES line shapes (⩾3×106L, 10−3−5×10−1torr). At low temperature (85 K) a second adsorbed oxygen species is detected.

References (32)

  • G.G. Tibbetts et al.

    Phys. Rev.

    (1977)
  • S. Evans et al.

    J. Chem. Soc. Faraday Disc.

    (1975)
  • R.W. Joyner

    Surface Sci.

    (1977)
  • M.J. Braithwaite et al.

    J. Chem. Soc. Faraday Disc.

    (1975)
  • M. Salmerón et al.

    Phys. Rev.

    (1976)
  • F.H.P.M. Habraken et al.
  • C. Benndorf et al.

    J. Vacuum Sci. Technol.

    (1978)
  • J.E. Boggio

    J. Chem. Phys.

    (1970)
  • P.H. Holloway et al.

    Surface Sci.

    (1974)
  • C.W. Simmons et al.

    Surface Sci

    (1975)
  • Benndorf C., Egert B., Seidel H. and Thieme F., to be...
  • J.E. Castle et al.
  • T.N. Rhodin

    J. Am. Chem. Soc.

    (1950)
    T.N. Rhodin

    J. Am. Chem. Soc

    (1951)
  • See, for example references [11], [12] and references...
  • D.T. Ling et al.

    J. Vacuum Sci. Technol.

    (1978)
  • D.R. Lloyd et al.

    Surface Sci.

    (1977)
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