发明名称 |
FLUORESCENT MATERIAL, PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT DEVICE |
摘要 |
A blue fluorescent material having excellent durability and a high luminance, especially one emitting a high-luminance light by the action of electron rays. The fluorescent material comprises inorganic crystals having a crystal structure which is an AlN crystalline, AlN polycrystalline, or AlN solid-solution crystalline structure. It is characterized in that the inorganic crystals contain at least europium in solution and have an oxygen content of 0.4 mass% or lower and that the fluorescent material emits fluorescence derived from divalent europium ions upon irradiation with an excitation source. More preferably, the fluorescent material contains a given metallic element and silicon. Also provided are a process for producing the fluorescent material and an illuminator including the blue fluorescent material. |
申请公布号 |
EP2135919(B1) |
申请公布日期 |
2013.10.30 |
申请号 |
EP20080703122 |
申请日期 |
2008.01.11 |
申请人 |
NATIONAL INSTITUTE FOR MATERIALS SCIENCE |
发明人 |
HIROSAKI, NAOTO |
分类号 |
C09K11/64;C09K11/08;H01J29/20;H01J31/12;H01J31/15;H01L33/00;H01L33/50 |
主分类号 |
C09K11/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|