Stein IP, LLC
Phosphor, production method for the same, and light-emitting device
A phosphor with a high light-emitting intensity and indicated by general formula MeaRebSicAldNeOf. Me has Sr as an essential element thereof and can include one or more types of element selected from Na, Li, Mg, Ca, Ba, Sc, Y, and La. Re has Eu as an essential element thereof and can include one or more types of element selected from Mn, Ce, Tb, Yb, and Sm. When composition ratios a, b, c, d, e, and f fulfill a=1−x, b=x, c=(2+2p)×(1−y), d=(2+2p)×y, e=(1+4p)×(1−z), and f=(1+4p)×z, parameters p, x, y, and z fulfill the following: 1.630<p<1.650, 0.005<x<0.300, 0.180<y<0.220, and 0.060<z<0.100. A light-emitting device with high luminance is provided by using this phosphor.
NATIONAL INSTITUTE FOR MATERIALS SCIENCE DENKA COMPANY LIMITED
C C H C
C09K C09K H01L C09K
inventional inventional additional inventional
Naoto Shintaro Ryo
Hirosaki Watanabe Yoshimatsu