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A study on the luminescence characterization of red long persistent phosphors by the B₂O₃ addition

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2008, 18(1), pp.22~26
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

황구현 1,  Jong Geon Choi 1

1동신대학교

Accredited

ABSTRACT

Red long persistent phosphors of CaZrO₃: Pr was synthesized by a solid reaction method. CaCO₃ and ZrO₂wereused as hosting materials and Pr was doped as luminescence center element, and B₂O₃was used as flux. The XRD patternand 590~700 nm. Phosphor samples were synthesized with B₂O₃flux concentration of 1, 5, 10 %, and luminescent peak ofmaximum intensity at 494 nm was obtained for 1 % B₂O₃. Luminescent peak of red color at 620 nm was of highestintensity for 10 % B₂O₃.

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