| 发明名称 |
Color stable red-emitting phosphors |
| 摘要 |
A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor
Ax[MFy]:Mn4+ I
wherein
A is Li, Na, K, Rb, Cs, or a combination thereof;M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof;x is the absolute value of the charge of the [MFy] ion; andy is 5, 6 or 7. |
| 申请公布号 |
US8906724(B2) |
申请公布日期 |
2014.12.09 |
| 申请号 |
US201414311624 |
申请日期 |
2014.06.23 |
| 申请人 |
General Electric Company |
发明人 |
Murphy James Edward;Setlur Anant Achyut;Garcia Florencio;Lyons Robert Joseph;Chowdhury Ashfaqul Islam;Karkada Nagaveni;Nammalwar Prasanth Kumar |
| 分类号 |
H01L21/00;H01L33/50;H01L33/52;C09K11/61 |
主分类号 |
H01L21/00 |
| 代理机构 |
|
代理人 |
Stanford Mary Louise |
| 主权项 |
1. A process for synthesizing a color stable Mn4+ doped phosphor, the process comprising contacting a precursor of formula I,
Ax[MFy]:Mn4+ I at an elevated temperature with a fluorine-containing oxidizing agent in gaseous form to form the color stable Me doped phosphor; wherein
A is Li, Na, K, Rb, Cs, or a combination thereof;M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof;x is the absolute value of the charge of the [MFy] ion; andy is 5, 6 or 7. |
| 地址 |
Niskayuna NY US |
