Effect of Co-dopant (Cr, Ti) in Zn2Si04:Mn Green Phosphors by Sol-Gel technique.

  • Ahn, Joong-In (Advanced Materials Division, Korea Research Institute of Chemical Technology, Department of Chemistry, Halla University) ;
  • Han, Cheong-Hwa (Department of Chemistry, Halla University) ;
  • Park, Hee-Dong (Advanced Materials Division, Korea Research Institute of Chemical Technology)
  • Published : 2003.07.09

Abstract

The main objective of this investigation is to improve the photoluminescent of $Zn_{2}SiO_{4}:Mn$ phosphors prepared by the sol-gel technique. We try to use adding a new co-dopan such as Cr and Ti. The calcination temperature of sol-gel technique(1100 $^{\circ}C$) was lower than that of the solid state reaction (1300 $^{\circ}C$). Under 147nm excitation, the maximum emission intensity was obtained when the concentration of Cr and Ti was 0.1mol% with respect to $Zn_{2}SiO_{4}:Mn$. In order to study the effect of co-dopant, the content of Mn and the ratio of water to TEOS were fixed at 2mol% and 36:1, respectively.

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