Fabrication and luminescent properties of ITO nanocrystalline coated micro Eu:Y_2O_3 particles

摘要

The Eu~(3+)-doped Y_2O_3 -particles of size 3.5 μm were coated with a layer of indium tin oxide precursor (ITO) and cured at 120 °C. The coating process was repeated four times. Finally, samples were annealed at 700 °C to form a cubic structure of ITO. The morphology and structure of obtained ITO- Eu:Y_2O_3 core-shells materials were determined by the X-ray diffraction (XRD), transmission electro-microscopy (TEM) and scanning electron-microscopy (SEM) analyses. In order to comparison of emissive properties, obtained was mixed with micrograins of ZnS:Ag in the same mass ratio. The photo- and cathodoluminescent spectra of obtained structures materials were determined and analyzed. The possible applications are discussed.