发明名称 |
YELLOW PHOSPHOR HAVING AN INCREASED ACTIVATOR CONCENTRATION AND A METHOD OF MAKING A YELLOW PHOSPHOR |
摘要 |
A yellow phosphor having an increased activator concentration includes a host lattice comprising yttrium aluminum garnet (YAG) and an activator comprising cerium in the host lattice, where the cerium is present at a concentration of at least about 5 wt.% Ce. A method of making a yellow phosphor includes forming a reaction mixture comprising: a first precursor comprising cerium and oxygen; a second precursor comprising cerium and fluorine; a third precursor comprising yttrium; and a fourth precursor comprising aluminum. The reaction mixture is heated in a reducing environment at a temperature sufficient to form a yellow phosphor including a host lattice comprising yttrium aluminum garnet and an activator comprising cerium (Ce) incorporated in the host lattice. |
申请公布号 |
WO2014093434(A1) |
申请公布日期 |
2014.06.19 |
申请号 |
WO2013US74287 |
申请日期 |
2013.12.11 |
申请人 |
CREE, INC. |
发明人 |
TODOROV, ILIYA, S.;COLLINS, BRIAN, T. |
分类号 |
C09K11/77 |
主分类号 |
C09K11/77 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|