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Synthesis of Y3Al5O12:Eu2+ Phosphor by a Facile Hydrogen Iodide-AssistedSol–Gel Method

Authors

  • Qiang Qiang Zhu,

    1. Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, China
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  • Wei Wei Hu,

    1. Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, China
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  • Li Chen Ju,

    1. Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, China
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  • Lu Yuan Hao,

    1. Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, China
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  • Xin Xu,

    Corresponding author
    • Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, China
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  • Simeon Agathopoulos

    1. Materials Science and Engineering Department, University of Ioannina, Ioannina, Greece
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    • Member, The American Ceramic Society.

Author to whom correspondence should be addressed. e-mail: xuxin@ustc.edu.cn

Abstract

Pure yttrium aluminum garnet (YAG) phosphor doped with Eu2+ has been successfully synthesized by a facile sol–gel method. The use of hydrogen iodide aimed to get Eu2+ ions, confirmed by X-ray absorption near-edge structure (XANES) analysis. Nearly spherical and well dispersed particles were synthesized. The produced YAG:Eu2+ phosphor powder had a broad emission band in the range of 400–600 nm with a peak at 480 nm, attributed to the allowed 4f7–4f65d1 transition of electrons in Eu2+ ions. The proposed method could also be expanded to prepare many other Eu2+-doped phosphors with a solution method.

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