Abstract
Dy3+ − Bi3+ codoped YVO4 (YVO4: 3at%Dy3+, xBi3+) phosphors have been synthesize and subsequently characterized by XRD, sem, and photoluminescence spectroscopy to study the simultaneous effect of activator and sensitizer on the luminescent properties of the said phosphor. One significant outcome of the photoluminescence study involved a detailed observation of the variation in the relative intensity of the 4F9/2−6H13/2 transition with respect to the 4F9/2-6H15/2 transition of Dy3+ in YVO4: Dy3+. The observations in this case were subsequently explained on the basis of change in the local symmetry of the dopant ion, due to change in the host morphology etc.
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