公开(公告)号：EP2602303A1

公开(公告)日：2013-06-12

申请号：EP11814691.9

申请日：2011-08-04

申请人： Sekisui Chemical Co., Ltd.

发明人： SUN, Ren-de ,  NAKATANI, Yasuhiro ,  OOMURA, Takahiro

IPC分类号： C09K11/08 ,  C09K11/59 ,  H01L33/50

CPC分类号： C09K11/7734 ,  C09K11/025 ,  H01L33/502 ,  H05B33/14 ,  Y10T428/2991 ,  Y10T428/2993

摘要： Provided are a surface treated phosphor having high dispersibility and remarkably improved moisture resistance without degradation in fluorescence properties, and a method of producing the surface treated phosphor.
The present invention relates to a surface treated phosphor including: a phosphor matrix including an alkaline earth metal and silicon; and a surface treatment layer including an alkaline earth metal, silicon, and a specific element belonging to groups 4 to 6 of the periodic table, wherein, when element distribution of the surface treatment layer in the thickness direction viewed in cross-section is determined by electron microscopy and energy dispersive X-ray spectroscopy coupled with the electron microscopy, the position representing the maximum peak of a specific element content is located closer to the surface than the position representing the maximum peak of a silicon content and silicon contents of the phosphor matrix and the surface treatment layer satisfy the following formula (1):
[Formula 1]

        S 1 2      (1)

wherein S 1 represents the silicon content of the phosphor matrix and S 2 represents the silicon content of the surface treatment layer.

摘要翻译： 提供了具有高的分散性和显着改善的耐湿性，而不在荧光特性劣化的经表面处理的荧光体，以及制备表面处理过的磷的方法。 本发明涉及一种表面处理过的磷，其包括：磷矩阵包含至碱土金属和硅; 和一个表面处理层，其包括以碱土金属，硅，以及属于组4周期表，worin，6的特定元素当在横截面中观察到的厚度方向上的表面处理层的元素分布是确定性的开采通过 电子显微镜和再加上电子显微镜能量分散X射线光谱，表示特定元素的含量的最大峰的位置位于比表示的荧光体基体的硅含量和硅含量的最大峰的位置更靠近所述表面 和表面处理层满足下式（1）：[化学式1]€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒS1