| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluorescent substance having higher brightness than that of a conventional fluorescent substance, to provide a method for producing the same and to provide a light-emitting device which utilizes the fluorescent substance. <P>SOLUTION: The fluorescent substance comprises at least an M(0) element (wherein M(0) represents one or two elements selected from Sr and La), an M(1) element (wherein M(1) represents at least one element selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb), Si, Al and nitrogen, has the same crystal structure as that of an α-type silicon nitride crystal, and comprises an α-sialon crystal structure. <P>COPYRIGHT: (C)2010,JPO&INPIT |
