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Synthesis, photoluminescence and thermal properties of laponite-X (X = Eu, Tb) phosphors

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2009, 19(4), pp.196~201
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

김표라 1,  Kim Youhyuk 2,  손동민 2,  이한나 2

1단국대학교
2단국대학교

Accredited

ABSTRACT

In order to give emission functionality for laponite the laponite-X (X = Eu, Tb) phosphors were prepared by calcination of cryogels which were prepared through Na ion exchange reaction with Eu and Tb ions. Thermal stability and emission properties of new laponite-X (X = Eu, Tb) phosphors were investigated by X-ray diffractormeter and UV/VUV spectrofluorometer. The phosphors were stable around up to 600℃and new crystalline phases were observed at 700℃. Red and green emissions of phosphors under UV/VUV excitation were also identified at 300℃and 500℃as emission peaks of Eu3+ and Tb3+, respectively.

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