Abstract
CaY1-xEuxTiNbO7 compositions with pyrochlore structure were synthesized by solid state reaction technique and photoluminescence was studied. Photoluminescence emission results reveal that the 5D0→7F1 magnetic dipole transition has higher intensity indicating that Eu3+ occupies a centrosymmetric site in the host lattice. The critical concentration of Eu3+ was found to be x=0.5. The CaY0.5Eu0.5TiNbO7 phase shows higher orange-red emission when compared to that of commercial red phosphor, Y2O3:Eu3+.