Karsu E.C.Popovici E.J.Ege A.Morar M.Indrea E.Karali T.Can N.2024-07-222024-07-22201100222313http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/18060Yttrium tantalate (YTaO4), yttrium niobium-tantalate (YTaNbO4), yttrium niobate (YNbO4), europium and terbium activated yttrium tantalate (YTaO4:Eu, YTaO4:Tb) and europium activated yttrium niobate (YNbO4:Eu) phosphors were prepared by solid-state reaction, from a homogeneous mixture consisting of Y 2O3, Eu2O3, Tb4O 7, Ta2O5, Nb2O5 and Na2SO4 as flux. Photoluminescence (PL), thermally stimulated luminescence (TSL), X-ray diffraction (XRD) and scanning electron microscopy (SEM) of yttrium tantalate based phosphors are reported. In the present study TSL characteristics of these phosphors were first investigated and reported after exposure to beta, UV (311 nm) and X-ray radiations. © 2010 Elsevier B.V. All rights reserved.EnglishEuropiumLuminescenceNiobiumNiobium compoundsPhosphorsScanning electron microscopySodiumTerbiumX ray diffractionYttriumHomogeneous mixturesLuminescence studiesNiobatesPLSEMTerbium-activatedThermally stimulated luminescenceTSLX ray radiationYttrium alloysArticle10.1016/j.jlumin.2011.01.021