| 发明名称 |
SILICATE LUMINESCENT MATERIAL AND PREPARATION METHOD THEREOF |
| 摘要 |
The present invention relates to a silicate luminescent material and preparation method thereof. The silicate luminescent material has the following general chemical formula: (Ba1-yAy)2-xSiO4: Eux, Dz@Mn, wherein @ represents coating, Mn is a core, (Ba1-yAy)2-xSiO4: Eux, Dz is a shell; A is one or two of Sr, Ca, Mg or Zn; D is either F or Cl; M is at least one of Ag, Au, Pt, Pd and Cu metallic nanoparticles; the value range of x is 0.001<n≦1×10−2. The silicate luminescent material is formed into a core-shell structure through the coating of metallic nanoparticles, thus effectively improving internal quantum efficiency of the luminescent material. In addition, the plasma effect on the surface of the metallic nanoparticles greatly improves luminous efficiency of the silicate luminescent material. The preparation method of the silicate luminescent material is simple, pollution free, easy to control, has low requirement for device, and is suitable for industrial production. |
| 申请公布号 |
US2015267110(A1) |
申请公布日期 |
2015.09.24 |
| 申请号 |
US201214427343 |
申请日期 |
2012.09.11 |
| 申请人 |
Zhou Mingjie;Wwang Rong |
发明人 |
Zhou Mingjie;Wwang Rong |
| 分类号 |
C09K11/77;C09K11/02;C09K11/87 |
主分类号 |
C09K11/77 |
| 代理机构 |
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代理人 |
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| 主权项 |
1. A silicate luminescent material having the following chemical formula:
(Ba1-yAy)2-xSiO4: Eux, Dz@Mn; wherein @ represents coating, M forms a core, (Ba1-yAy)2,SiO4: Eux, Dz coats the M and forms a shell; A is at least one selected from the group consisting of Sr, Ca, Mg, and Zn, D is F or Cl, M is at least one nanoparticle selected from the group consisting of Ag, Au, Pt, Pd and Cu; 0.001<x≦0.15, 0<y≦0.5, 0≦z≦0.5; n is a molar ratio between M and Si in the silicate luminescent material, 0<n≦1×10−2. |
| 地址 |
Shenzhen CN |
