Research Article
A. P. Zambare and K.V.R. Murth
Abstract
The present paper reports Photoluminescence [PL] characteristics of Eu doped YPVO4, Y2O3 and YLaVO4 phosphors. The phosphors were prepared by adopting standard solid state reaction method. The photoluminescence emission spectra of YPVO4: Eu3+(0.5%) and Y2O3:Eu3+(0.5%) are excited with 254 nm. Y(PV)O4: Eu3+ displays PL emission at 365, 540,561, 594 and 611nm. Y2O3:Eu3+ displays the PL emissions at 536, 583, 589, 594, 600, 615 and 632nm. The excitation of the Y0.5LaVO4: Eu (0.5%) phosphor with 450nm wavelength generates a strong and broad emission in UV region i.e. 240 to 300 nm. The PL emission of Y0.5LaVO4: Eu is interesting in nature as it displays up-conversion phenomena.