SILICATE GREEN PHOSPHOR WITH ACTIVATING TERBIUM

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PROBLEM TO BE SOLVED : To provide a phosphor exhibiting strong light emission without using large amounts of rare-earth elements. SOLUTION : A silicate green phosphor with activating terbium has a composition represented by the general formula : M1(M21-yTby)a(M31-xAlx)bOc, where M1 is a divalent metal element at least including Ba; M2 is a trivalent metal element at least including Y; M3 is a tetravalent metal element at least including Si, 0

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