LAUSR

Abstract New cubic-spherical morphology was obtained for (Y2O3)0.5-(MgO)0.5 nanocomposite by the polymeric complex method. In this method, magnesium acetate, yttrium nitrate and C10H16N2O8 (EDTA) were used as a source of Mg2+, Y3+ and both template and chelate agent, respectively. Results show that with increasing pH value from 2 to 8, the morphology of the sample was changed from irregular to the mixture of cubic and spherical particles. Furthermore, according to the PL results, the nanopowder had the strong emission peak centered at 348 nm and 450 nm, corresponding to the electronic transition of T 1 u 1 → A 1 g 2 and B 1 u 3 → A g 1 , respectively. The narrow blue, orange, and red bands are also located in the 450 nm, 580 nm and 690 nm spectral ranges.