发明名称 |
EUROPIUM, YTTRIUM OXIDE OR GADOLINIUM CORE/SHELL COMPOSITION, PHOSPHOR INCLUDING SAID COMPOSITION, AND METHODS FOR PREPARING SAME |
摘要 |
<p>A composition including an inorganic core and a europium and yttrium oxide or gadolinium shell uniformly covering the inorganic core at a thickness greater than or equal to 300 nm is described. A phosphor including the composition is also described. In addition a process of forming the composition by: forming a suspension including the inorganic core with pH of 8 to 11; adding a solution including a europium salt and yttrium or gadolinium salt to the suspension and maintaining the pH of the reaction medium at a constant value; and separating the formed solid and calcining the same to a temperature of at most 1000° C. is described.</p> |
申请公布号 |
KR20110122215(A) |
申请公布日期 |
2011.11.09 |
申请号 |
KR20117022835 |
申请日期 |
2010.03.25 |
申请人 |
RHODIA OPERATIONS |
发明人 |
BUISSETTE VALERIE;LE MERCIER THIERRY |
分类号 |
C09K11/77;C09K11/08;C09K11/64;H01L33/00 |
主分类号 |
C09K11/77 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|