Detailed XPS and UPS studies of the band structure of zinc oxide |
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Authors: | S A Leontiev S V Koshcheev V G Devyatov A E Cherkashin é P Mikheeva |
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Institution: | (1) G. K. Boreskov Institute of Catalysis Siberian Branch, Russian Academy of Sciences, USSR |
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Abstract: | The X-ray photoelectron spectra of zinc oxide were measured in a wide range of quantum energies (30–150 and 1253.6 eV). It
is shown that the form of the spectrum of the valence O2p-band depends on the energy of the incident quantum. The most probable
reason for the change in the form of the O2p-band spectra is an admixture of Zn3d-electrons, which, along with Zn4s-electronst
take part in covalent bonding of Zn and O. The dependence of the integral intensity ratio of the O2p-band to the intensity
of the Zn3d peak on hv was analyzed, due to which the percent of the admixture of the Zn3d-states in the O2p-band was determined
to be 9%. The stoichiometry and the depth of the profile of the concentration ratio were calculated taking into account the
fraction of the Zn3d-electrons participating in the bond.
Deceased.
Translated fromZhurnal Struktumoi Khimii, Vol. 38, No. 5, pp. 868–876, September-October, 1997. |
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