| 摘要 |
<p>Silicate luminous material and preparation method thereof are provided. The luminous material is represented by the following chemical formula: Zn 2-x SiO4:Mn x @SiO 2 @M y , wherein M represents at least one element selected from the group consisting of Ag, Au, Pt, Pd and Cu, and y is molar ratio of M to Si in silicate luminous materials, and 0<x‰¤0.2 , 0<y‰¤1×10 -2 . @ is coating; M is inner core; SiO 2 is middle shell; Zn 2-x SiO 4 :Mn x is outer shell. The core-shell luminous materials coating metal particle improve internal quantum efficiency, increase luminous intensity, and they are stable. The luminous materials can be controlled in the aspects of size and appearance and are appropriate to be used in coating screen process and improving display effect for sphere appearance with bulk density. Precipitation methods can not only decrease reaction temperature, but also have features of simple process, low equipment requirement, non-pollution and are controlled easily.</p> |
