| 摘要 |
An object of the invention is to provide a phosphor that emits a light containing much red and green light components and a light-emitting device and a lighting apparatus comprising the phosphor that have favorable color rendering properties. An oxide nitride phosphor having a garnet structure represented by
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒFormula [1]:€ƒ€ƒ€ƒ€ƒ€ƒA w Al x C y : Ce z ,
in Formula [1], A=(Lu a ,Y b ), a+b=1, 0<a<1,0<b<1, C=(O c ,N d ), 10‰¤c+d‰¤16, 1.4‰¤c/d, 2‰¤w+z‰¤4, 4.0<x‰¤7.0;
the molar ratio of Ce/A is ‰¥ 0.015 and
the nitrogen content is 0.007 mass % or more. |
