| 摘要 |
A silicate luminescent material has a general molecular formula of Li 2 Ca 1-x SiO 4 :Tb x ,M y is provided, of which M is selected from at least one of Ag, Au, Pt, Pd, and Cu metal nanoparticles, x is in a range of 0<x‰¤0.2, M is doped in Li 2 Ca 1-x SiO 4 :Tb x , y is a molar ratio of M to Si and y is in a range of 0<y ‰¤1×10 -2 . The metal nanoparticles M which doped in the silicate luminescent material can improve internal quantum efficiency of the luminescent material, thereby improving luminescent intensity of the silicate luminescent material. In addition, the silicate luminescent material can prevent a phenomenon where luminescent efficiency of the luminescent material is reduced because a traditional sulfide and sulfur oxide decompose during use and sediment generated in decomposition covers a surface of the luminescent material, and has high stability. A preparation method thereof is also provided. |
