ИСТИНА

The new hybrid materials (HM) are based on the phosphors used in OLED technology in inorganic PbF2-containing matrices: nanopowders PbF2 and low melting PbF2-based oxyfluoride glasses, were synthesized. We used highly effective thermostable phosphors: ?-diketone complexes of Eu, 8-hydroxyquinoline complexes with metals I, II and III group of Periodic table. HM (nanopowders PbF2 phosphor) obtained by coprecipitation from aqueous solutions. The effect of organic molecules or molecular fragments on the size and morphology of precipitated PbF2 particles, the luminescence properties of HM both directly after precipitation and drying, and after calcination of powders were investigate. The change in the photoluminescence spectra after the heat treatment of the powders is caused by the passage of the exchange reaction between the metal complex and the matrix with the formation of Pb-complexes of different coordination is shown. HM (glasses PbF2-B2O3, PbF2-B2O3-SiO2 or PbF2-B2O3-SiO2-ZnO phosphor) were obtained by the melt process, the phosphor powder was introduced into the melt of the pre-synthesized glasses. The influences of the matrix composition, the concentration of residual water and OH-groups in the glass on the luminescence efficiency of HM were studied. The research was supported by the Russian Science Foundation by grant 14-13-01074?