FLUORESCENT SUBSTANCE, METHOD OF MANUFACTURING FLUORESCENT SUBSTANCE, AND LIGHT EMITTING DEVICE USING THE FLUORESCENT SUBSTANCE

摘要

Disclosed is a fluorescent substance comprising an alkaline earth metal silicate having a composition represented by the following general formula (1): <?in-line-formulae description="In-line Formulae" end="lead"?>(Sr<SUB>1-x-y-z</SUB>Ba<SUB>x</SUB>Ca<SUB>y</SUB>Eu<SUB>z</SUB>)<SUB>2</SUB>Si<SUB>w</SUB>O<SUB>2+2w</SUB> (1) <?in-line-formulae description="In-line Formulae" end="tail"?> where x, y, z and w fall within the ranges of: 0<=x<=0.97; 0<=y<=0.97; 0.03<=z<=0.20; 1.00<w 1.10.