ABSTRACT

The sol-gel process combines the advantage of lower temperature and possibility of making of finely dispersed powders and coating with ease and low cost. In the present studies Y₂O₃:SiO₂ nanopowder doped with dysprosium ion was synthesized via sol-gel route. Then dried sample was annealed in a muffle furnace at 750^?C. Structural and optical behavior of the annealed sample was investigated by different complementary characterization techniques such as X-Ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), UV-Vis spectroscopy, which are discussed at length. Particle size has been calculated by the well-known Debye-Scherrer formula. Band gap energy has also been calculated by Tauc’s plot.There is increasing recognition that sol-gel synthesis offers growth control capabilities that can be conveniently exploited in preparing these desirable nanophosphor materials.