Effects of Fluoride Dopants in the Starting Materials for BaAl2S4:Eu Thin-Film Phosphors

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概要

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• BaF2 and AlF3 were used for the preparation of BaAl2S4:Eu thin-film phosphors. The blue emission with a peak at 470 nm was obtained particularly because the process temperature was not sufficient for obtaining a peak at 470 nm in the case of a conventional technique. The intensity of the blue emission from BaAl2S4:Eu phosphors prepared using fluoride compounds was higher than that of phosphors prepared without fluoride compounds, and the appropriate annealing temperature decreased during the preparation process. It is considered that BaF2 and AlF3 enhanced the reaction of starting materials and accelerated the crystallization of BaAl2S4. The crystallinity and mean crystal particle size of BaAl2S4:Eu phosphors prepared using fluoride compounds were improved. This is due to the fluoride compounds effectively acting as flux materials.

• 2010-01-25

著者

• MIURA Noboru

  School of Science and Technology, Meiji University

• MATSUMOTO Hironaga

  School of Science and Technology, Meiji University

• NAKANO Ryotaro

  School of Science and Technology, Meiji University

• Nakano Ryotaro

  School of Science and Technology, Meiji University, Kawasaki 214-8571, Japan

• Matsumoto Hironaga

  School of Science and Technology, Meiji University, Kawasaki 214-8571, Japan

• Miura Noboru

  School of Science and Technology, Meiji University, Kawasaki 214-8571, Japan

• Guo Runhong

  School of Science and Technology, Meiji University, Kawasaki 214-8571, Japan

関連論文

• Atomic Composition and Structural Properties of Blue Emitting BaAl_2S_4:Eu Electroluminescent Thin Films
• Effects of Fluoride Dopants in the Starting Materials for BaAl2S4:Eu Thin-Film Phosphors

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