LAUSR

Abstract A series of LiGd(W (1−x) Mo x O 4 ) 2 [hereafter LGWM]:Eu 3+ (x=0.00 to 1.00) red-emitting phosphors were synthesized by sol-gel method. Metal nitrates were used as starting materials with citric acid as chelator and ethylene glycol as binder. Synthesized gel was pre-fired at 523 K and calcined at 1073 K using resistive furnace in air atmosphere. The crystallinity, surface morphology and luminescent properties of the phosphors were investigated using powder X-ray diffraction (XRD), scanning electron microscope (SEM) and fluorescence spectrophotometry respectively. The intensity of the red emission at 615 nm for 5 D 0 → 7 F 2 electric dipole transition increases as the content of Mo 6+ was increased and reach a maximum, when the relative ratio of W/Mo is 1:1 under 396 nm excitation.