High Luminescence Properties of YPV nano size phosphors by a Liquid Phase Precursor Method

  • Jo, D.S. (School of Advanced Material Science and Engineering, Sungkyunkwan University) ;
  • Dulda, A. (SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University) ;
  • Masaki, T. (School of Advanced Material Science and Engineering, Sungkyunkwan University) ;
  • Yoon, D.H. (School of Advanced Material Science and Engineering, Sungkyunkwan University)
  • Published : 2009.10.12

Abstract

The synthesis of nano-size ($Y_{0.955}Eu_{0.1}$)($P_{0.7}V_{0.45}$)$O_4$ red phosphors were conducted by using a Liquid Phase Precursor (LPP) method. In this method, cellulose pulp was used as a template showing the micro fibre structures to obtain the nano size YPV red phosphor. Aqueous solutions of raw materials were impregnated into cellulose pulp and subsequently impregnated pulp was dried and fired at $800-1200^{\circ}C$ for 1h. The effect of luminescence properties on compositions and temperatures was evaluated with photoluminescence spectrum, X-ray diffraction and FE-SEM, and TEM. High efficiency (~110%) of phosphor of size of ~500nm fired at $1150^{\circ}C$ was obtained compared with the micro size of commercial product. High efficiency behaviors of nano size phosphors were discussed in this paper.

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