Synthesis of $Ba_2SiS_4:Eu^{2+}$ Blue-Green Phosphor Prepared by Spray Drying Method Using Water Soluble Silicon Compound

  • Tezuka, Satoko (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University) ;
  • Suzuki, Yoshihito (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University) ;
  • Petrykin, Valery (J. Heyrovsky Institute of Physical Chemistry) ;
  • Kakihana, Masato (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University)
  • Published : 2009.10.12

Abstract

The single phase $Ba_2SiS_4$ doped with $Eu^{2+}$ was successfully synthesized by direct sulfurization of an oxide precursor prepared by a spray drying method using a novel water soluble silicon compound, which remains soluble in a given aqueous solution. The intensity of the emission peak of thus obtained $Ba_2SiS_4:Eu^{2+}$ was 1.75 times larger than that of a sample prepared by a solid state reaction method, and it approached 106% compared to one of the best commercially available YAG:$Ce^{3+}$ phosphor.

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