Abstract
In this article an experimental study of MgO-ZnO ceramic coatings prepared by a simple liquid polymer-salt method using high molecular polyvinylpyrrolidone is presented. It is demonstrated that this method permits to obtain the transparent and uniform coatings on the glass or silicon substrates surface. These transparent MgO-ZnO ceramic coatings show the ability to generate chemically active singlet oxygenunder UV irradiation. Structure and spectral properties of the coatings were studied by SEM, DSC, XRD methods, and optical and luminescence spectroscopy. These coatings consist of small (5–20 nm) oxide nanoparticles forming aggregates. The MgO addition to the coating composition increases its transparency in UV spectral range. The coating material bandgap value is higher than that of bulk material (up to 4,15 eV).
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