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JOURNAL OF APPLIED SPECTROSCOPY
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EFFECT OF FINELY DISPERSED PLATINUM ON THE STRUCTURE
OF LUMINESCENCE SPECTRA
OF THE ADSORBATES OF MAGNESIUM PHTHALOCYANINE ON SILICON DIOXIDE
R. R. Bagautdinov, S. O. Stepanova, V. I. Korotkov,* B. N. Korvatovskii,
and V. V. Akulinichev
UDC 544.52
The luminescence and excitation spectra and kinetic characteristics
of the luminescence of the adsorbates of magnesium phthalocyanine (MgPhc)
on SiO2 and the effect on them of surface hydration and finely
dispersed platinum are studied. It is found that a structure that improves
hydration of the adsorbent surface appears on the platinized surface in
the luminescence and excitation spectra. It is assumed that the spectral
structure is due to the complexes of MgPhc formed with water molecules,
the hydroxyl cover of the surface, and the surface centers of SiO2
modified by a Pt-catalyst.