Combustion Synthesis and VUV Photoluminescence Studies of Borate Host Phosphors YBO₃:RE³⁺ (RE = Eu³⁺, Tb³⁺) for PDPs Applications

Abstract

The inorganic borate host phosphors YBO₃:RE ion (RE = Eu³⁺,Tb³⁺) were synthesized by a novel solution combustion technique. The synthesis is based on the exothermic reaction between fuel (urea) and oxidizer (ammonium nitrate). The heat generated in the reaction was used for auto combustion of precursors. The photoluminescence properties and spectroscopic investigation of the phosphor powder samples were investigated under ultraviolet (UV) and vacuum ultraviolet (VUV) excitation. The phosphors YBO₃:Eu³⁺ and YBO₃:Tb³⁺ show strong absorption in the UV and VUV region and exhibit intense orange-red and green emission, respectively, when excited by 254 nm UV and 147 nm VUV radiation. The phosphor YBO₃ doped with Eu³⁺ and Tb³⁺ could be an efficient VUV-excited phosphor for plasma display phosphors (PDP) applications.

Keywords:

• Optical properties
• Phosphor
• Solution combustion synthesis

Notes

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