Fabrication and optical properties of selected coreshell structures with nanocrystalline rare-earth doped phosphors coated with SiO2 submicron particles

In the first step silica submicron particles were prepared by the sol-gel method. Then obtained cores were occluded with a precursor of terbium doped yttrium aluminum garnet (YAG). The same procedure was repeated for europium doped tin dioxide. The morphology and structure of obtained shell materials were determined by powder X-ray diffraction (XRD) and transmission electro-microscopy (TEM) analyses. Luminescent properties of obtained structures were determined. Possible applications of presented materials are discussed.