Abstract
NaGd1−xTbx(WO4)2 (Tb:NGW) green phosphor were synthesised by high temperature solid state reaction. Synthesised powders were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and spectroflorimeter analysis. The formation of NGW scheelite structure was conformed by XRD. FE-SEM images clearly show the surface morphology of synthesized powder. From excitation spectrum, the charge transfer band (CTB) of O-W elucidated at 270 nm and emission spectrum has shown green emission at 545 nm under 270 nm (UV light) excitation. The optimum dopant concentration of Tb has been found to be 15 at%.
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