セルフフラックス法による真空紫外励起用蛍光体の合成

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  • Synthesis of vacuum ultraviolet phosphors by self-flux method
  • セルフフラックスホウ ニ ヨル シンクウ シガイレイキヨウ ケイコウタイ ノ ゴウセイ

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Vacuum ultraviolet (VUV) phosphors are inorganic optical materials used in mercury-free fluorescent lamps and plasma display panels (PDP). Promising red VUV phosphor, GdBO3:Eu3+, were synthesized by a flux method. Studies of the phosphor synthesis reaction show that the flux (e.g., B2O3, RbCl) serves as an important reactant. The phosphor particles prepared by the flux method at 1100°C with RbCl flux had the highest PL intensity under VUV excitation (146 nm), which corresponded to 126 % of that of particles prepared from raw material mixture without flux.

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