| 发明名称 |
FLUORIDE FLUORESCENT MATERIAL AND METHOD FOR PRODUCING THE SAME AS WELL AS LIGHT EMITTING DEVICE USING THE SAME |
| 摘要 |
The present invention provides a method for producing a fluoride fluorescent material, the method comprising:
contacting potassium ions with first complex ions comprising tetravalent manganese ions and second complex ions comprising at least one member selected from the group consisting of elements belonging to Groups 4 and 14 of the Periodic Table in a liquid medium comprising hydrogen fluoride to obtain a dispersion containing fluoride particles represented by the following formula (I):;K2[M1-bMn4+bF6] (I)wherein M is the at least one member selected from the group consisting of elements belonging to Groups 4 and 14 of the Periodic Table, and b satisfies the relationship: 0<b<0.2;adding a reducing agent to the dispersion; andcontacting the fluoride particles in the dispersion to which the reducing agent is added with at least one of additional second complex ions and additional potassium ions in the presence of hydrogen fluoride to obtain a fluoride fluorescent material. |
| 申请公布号 |
US2015055060(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201414467158 |
申请日期 |
2014.08.25 |
| 申请人 |
NICHIA CORPORATION |
发明人 |
YOSHIDA Tomokazu |
| 分类号 |
C09K11/61;F21V9/16;G02F1/1335 |
主分类号 |
C09K11/61 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for producing a fluoride fluorescent material, the method comprising:
contacting potassium ions with first complex ions comprising tetravalent manganese ions and second complex ions comprising at least one member selected from the group consisting of elements belonging to Groups 4 and 14 of the Periodic Table in a liquid medium comprising hydrogen fluoride to obtain a dispersion containing fluoride particles represented by the following formula (I):
K2[M1-bMn4+bF6] (I)wherein M is the at least one member selected from the group consisting of elements belonging to Groups 4 and 14 of the Periodic Table, and b satisfies the relationship: 0<b<0.2; adding a reducing agent to the dispersion; and contacting the fluoride particles in the dispersion to which the reducing agent is added with at least one of additional second complex ions and additional potassium ions in the presence of hydrogen fluoride to obtain a fluoride fluorescent material. |
| 地址 |
Anan-shi JP |
