HALO PHOSPHATE PHOSPHOR EXHIBITING RED LUMINESCENCE AND MANUFACTURING METHOD THEREFOR

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PROBLEM TO BE SOLVED : To provide a halo phosphate phosphor capable of developing red luminescence by visible light excitation and a manufacturing method therefor. SOLUTION : There is provided a halo phosphate phosphor having an apatite structure represented by the general formula (M1-α-β-γEuαAβBγ)5(PO4)3X, where α, β, and γ are 0<α<0.08, 0≤β<0.06, 0<γ<0.08, M is one or more kinds of alkali earth metal selected from a group consisting of Sr, Ca, Mg, and Ba and containing at least Sr, A is one or more rear earth element selected from a group consisting of Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, B is one or more kinds of alkali metal selected from a group consisting of Li and Na and containing at least Li, X is one or two kinds of halogen selected from a group consisting of F and Cl and containing at least F, and a part of X is loss or may be substituted by oxygen or sulfur. SELECTED DRAWING : Figure 1 COPYRIGHT : (C)2016, JPO&INPIT