发明名称 |
COLOR STABLE RED-EMITTING PHOSPHORS |
摘要 |
A process for preparing a Mn+4 doped phosphor of formula I;Ax[MFy]:Mn+4 I;includes gradually adding a first solution to a second solution and periodically discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant;
wherein
A is Li, Na, K, Rb, Cs, or a combination thereof;M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof;x is the absolute value of the charge of the [MFy] ion;y is 5, 6 or 7.
The first solution includes a source of M and HF and the second solution includes a source of Mn to a reactor in the presence of a source of A. |
申请公布号 |
US2016115382(A1) |
申请公布日期 |
2016.04.28 |
申请号 |
US201514950644 |
申请日期 |
2015.11.24 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
Du Fangming;Beers William Winder;Cohen William Erwin;Nelson Clark David;Novak Jenna Marie;Root John Matthew;Murphy James Edward;Sista Srinivas Prasad |
分类号 |
C09K11/61;F21K99/00;F21V9/16 |
主分类号 |
C09K11/61 |
代理机构 |
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代理人 |
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主权项 |
1. A process for preparing a Mn+4 doped phosphor of formula I
Ax[MFy]:Mn+4 I the process comprising gradually adding a first solution comprising a source of M and HF and a second solution comprising a source of Mn to a reactor in the presence of a source of A, to form a product liquor comprising the Mn+4 doped phosphor; and periodically discharging at least a portion of the product liquor from the reactor;wherein
A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7. |
地址 |
Schenectady NY US |