Abstract
One atomic percent Neodymium ion doped Yttrium oxide, with 25at% scandium ion (Nd0.02Sc0.5Y1.48O3), was synthesized by nitrate alanine microwave gel combustion followed by calcinations at 1000°C for 2h. Phase purity of nanopowder was characterized by X-Ray Diffraction (XRD). Neodymium and scandium ion doping was confirmed by cell parameter calculation and Scanning Electron Microscope-Electron Dispersive X-ray (SEM-EDX) analysis. Particles with size range 25–35nm with close to spherical shape were obtained as observed by Transmission Electron Microscopy (TEM). Powder on compaction followed by vacuum sintering at 1765°C for 40min led to the formation of ceramic with 76% transmission at 2500nm compared to translucent ceramic obtained without scandium ion doping. This indicates formation of highly sinterable neodymium doped yttrium oxide nanopowders by nitrate alanine microwave gel combustion route with scandium ion additive. Further the absorption and emission bands of Nd0.02Sc0.5Y1.48O3 are inhomogeneously broadened and fluorescence lifetime is longer than Nd0.02Y1.98O3.
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