| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluorescent substance for white light-emitting elements, and to provide a white light-emitting element containing the same. <P>SOLUTION: The present invention relates to an alkaline earth metal silicate-based fluorescent substance represented by (M1<SB>1-x-y</SB>A<SB>x</SB>B<SB>y</SB>)<SB>a</SB>Mg<SB>b</SB>M2<SB>c</SB>O<SB>d</SB>Z<SB>e</SB>, wherein M1 is one selected from the group consisting of Ba, Ca and Sr; M2 is one or more selected from Si and Ge; A, B are each independently one selected from Eu, Ce, Mn, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Bi, Sn and Sb; Z is one or more selected from monovalent or divalent elements, H and N; 0<x<1, 0≤y≤1, 6.3<a<7.7, 0.9<b<1.1, 3.6<c<4.4, 14.4<d<17.6, 14.4<d+e<17.6 and 0≤e≤0.18, and to a white light-emitting element (LED) containing the same. <P>COPYRIGHT: (C)2008,JPO&INPIT |
