公开(公告)号：US09365769B2

公开(公告)日：2016-06-14

申请号：US13921689

申请日：2013-06-19

Applicant: LG INNOTEK CO., LTD.

Inventor： Shunichi Kubota ,  Satoshi Tanaka

IPC: C09K11/77 ,  H01L33/50 ,  C09K11/59 ,  C09K11/08

CPC classification number: C09K11/7728 ,  C09K11/0883 ,  C09K11/59 ,  C09K11/7734 ,  H01L33/502 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/48465 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00

Abstract: A phosphor and a light emitting device including the phosphor may be provided that emits light having a peak wavelength between a green wavelength band and a yellow wavelength band, has a crystal structure of which the chemical formula is MSi2N2O2, M=CaxSryEuz (x+y+z=1), and has a triclinic system crystal structure in which, when molar ratios of Ca, Sr and Eu are x, y and z respectively, x+y+z=1 and when the x, y and z are represented by a triangular projection, the x, y and z are distributed on the lines and at the inside of an area formed by connecting five points of (0.45, 0.55, 0), (0.75, 0.25, 0), (0.75, 0, 0.25), (0.5, 0, 0.5) and (0.45, 0.05, 0.5) by a solid line on a triangular diagram.

Abstract translation: 可以提供一种荧光体和包括该荧光体的发光器件，其发射具有绿色波长带和黄色波长带之间的峰值波长的光，其晶体结构的化学式为MSi2N2O2，M = CaxSryEuz（x + y + z = 1），并且具有三斜晶系结构，其中当Ca，Sr和Eu的摩尔比分别为x，y和z时，x + y + z = 1，并且当表示x，y和z时 通过三角形投影，x，y和z分布在通过连接（0.45,0.55,0），（0.75,0.25,0），（0.75,0.0,0），（0.75,0.25,0），（0.75,0.25,0）， 0.25），（0.5,0,0.5）和（0.45,0.05,0.5）之间的实线。