| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluorescent material with good temperature properties that is usable for a light emitting device. <P>SOLUTION: This fluorescent material has a composition represented by general formula (1): (M<SB>1-w</SB>R<SB>w</SB>)<SB>u</SB>Al<SB>1-x</SB>Si<SB>1+v</SB>O<SB>z</SB>N<SB>t</SB>C<SB>y</SB>(wherein, M is at least one metal element excepting Si and Al, R is a luminescent central element, and w, u, x, v, z, t and y are values which satisfy following relationships: 0.001<w<0.5; 0.66≤u≤1; 0.07≤x≤0.73; 0.06≤v≤0.84; 0.04≤z≤0.44; 2.7≤t≤3.1; and 0.019≤y≤0.13). <P>COPYRIGHT: (C)2009,JPO&INPIT |
