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Luminescence study of some yttrium tantalate-based phosphors |
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| Authors: | EC Karsu A Ege E Indrea N Can |
| Institution: | a Celal Bayar University, Faculty of Arts and Sciences, Department of Physics, 45010 Muradiye-Manisa, Turkey b “Raluca Ripan” Institute for Research in Chemistry, Babes Bolyai University, Fantanele 30, 400294 Cluj-Napoca, Romania c National Institute for Research and Development of Isotopic and Molecular Technologies, Donath 65-103, 400293 Cluj-Napoca, Romania d Institute of Nuclear Sciences, Ege University, 35100 Bornova-Izmir, Turkey |
| Abstract: | Yttrium 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 Y2O3, Eu2O3, Tb4O7, 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. |
| Keywords: | TSL PL Yttrium tantalate Yttrium niobate Phosphors Rare-earth elements |
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