| 简介 |
PURPOSE : A silicate-based phosphor is provided to solve problems of the conventional garnet-based phosphor or silicate-based phosphor comprising YAG : Ce(3+) and to produce a light emitting device having high color temperature and color rendering index.
CONSTITUTION : A silicate-based phosphor has a composition represented by the formula of (4-x-y-z)SrO·xBaO·zCaO·aMgO·2(SiO2) ·bM2O3 : yEu, wherein M is at least one metal selected from the group consisting of Y, La, Ce, Nd, Gd, Tb, Yb, and Lu, 0
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