イオウを利用する素材プロセッシング(II)硫化物蛍光体のプロセッシングと機能

  • 八島 勇
    三井金属鉱業(株) 技術統括本部 総合研究所 研究開発センター
  • 伊東 純一
    三井金属鉱業(株) 技術統括本部 総合研究所 研究開発センター

書誌事項

タイトル別名
  • Processing and Function of the Sulfide Phosphor
  • 硫化物蛍光体のプロセッシングと機能
  • リュウカブツ ケイコウタイ ノ プロセッシング ト キノウ

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抄録

The purpose of this work is to present processing and function of the sulfide phosphor. Phosphors of rock salt structure such as SrS and CaS and alkaline earth thiogallates with the formula MIIGa2S4, where MII=Ca, Sr and Ba have been investigated for full-color inorganic thin film electroluminescence. More recently sulfide phosphors were used as phosphors in phosphor converted light emitting diodes for solid state lighting. Various Eu2+ doped phosphors were prepared by solid state reactions between alkaline earth carbonates and gallium oxides mixed in stoichiometric compositions. Phosphors were treated at 900°C for 5h under a H2S stream, then doped with Eu2+ luminescent center and retreated at 1100°C under similar conditions. The emission spectra of YAG:Ce3+, SrGa2S4:Eu2+ and CaS:Eu2+ are presented as a function of the temperature from 20°C to 100°C. The emission intensities of phosphors slightly decreased with increasing temperature.

収録刊行物

  • 資源と素材

    資源と素材 126 (7), 456-459, 2010

    一般社団法人 資源・素材学会

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