Structural, optical and morphological study on Gd2O3:Eu3+

摘要

Eu3+ doped Gd2O3 phosphors were synthesized successfully by sol-gel method. The growth of particle was inhibited with the addition of surfactant PEG. The formation of cubic phase Gd2O3 was confirmed from XRD pattern. The reflectance spectra exhibited the absorption peaks corresponding to the dopant and host ions. The excitation spectra showed a broad peak at 248 nm corresponding to ligand to metal charge transfer. A sharp red emission peak at 611 nm indicated the presence of more number of Eu3+ ions in non-inversion symmetry site. The SEM micrograph showed the growth of agglomerated and non-uniform shaped particles with the addition of PEG.