| 发明名称 |
PHOSPHOR, METHOD FOR PRODUCING PHOSPHOR AND LIGHT EMITTING DEVICE |
| 摘要 |
The present invention provides a phosphor comprising a europium-activated sialon crystal having a basic composition represented by a formula: (Sr1-x, Eux)αSiβAlγOδNω (1) (wherein x is 0<x<1, α is 0<α<4 and β, γ, δ and ω are numbers such that converted numerical values when α is 3 satisfy 9<β≦15, 1≦γ≦5, 0.5≦δ≦3 and 10≦ω≦30), wherein the phosphor is composed of particles having a sphericity of 0.65 or more and emits green light by being excited by ultraviolet light, violet light or blue light. |
| 申请公布号 |
US2015014726(A1) |
申请公布日期 |
2015.01.15 |
| 申请号 |
US201314344087 |
申请日期 |
2013.03.15 |
| 申请人 |
Kabushiki Kaisha Toshiba ;Toshiba Materials Co. Ltd. |
发明人 |
Usui Daichi;Shirakawa Yasuhiro;Takemura Hirofumi;Ishii Tsutomu |
| 分类号 |
C09K11/77;H01L33/50 |
主分类号 |
C09K11/77 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A phosphor comprising a europium-activated sialon crystal having a basic composition represented by the following formula (1)
[Formula 1] formula: (Sr1-x,Eux)αSiβAlγOδNω (1)(wherein x is 0<x<1, α is 0<α≦4 and β, γ, δ and ω are numbers such that converted numerical values when α is 3 satisfy 9<β≦15, 1<γ≦5, 0.5≦δ≦3 and 10≦ω≦30),
wherein the phosphor is composed of particles having a sphericity of 0.65 or more and emits green light by being excited by ultraviolet light, violet light or blue light. |
| 地址 |
Tokyo JP |
