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    STUDIA CHEMIA - Issue no. 2 / 2006  
         
  Article:   STUDIES ON THE INFLUENCE OF FLUX NATURE ON THE PROPERTIES OF NIOBIUM ACTIVATED YTTRIUM TANTALATE PHOSPHOR.

Authors:  AMALIA MESAROS, ELISABETH-JEANNE POPOVICI, LAURA MUREŞAN, MARIA ŞTEFAN, RODICA GRECU , MARILENA VASILESCU.
 
       
         
  Abstract:  Niobium activated yttrium tantalate (YTaO4:Nb) presents good X-ray absorption and emits in the blue region of the spectrum. The goal of the paper is to study the influence of flux nature on the crystalline structure, morphology and luminescent characteristics of YTaO4:Nb powders. Phosphors samples were prepared by solid state reaction route and theirs properties were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), photoluminescence (PL) measurements and scanning electron microscopy (SEM).  
         
     
         
         
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