BLUE-GREEN SILICATE LUMINESCENT MATERIALS

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Blue-green silicate luminescent materials are disclosed. The luminescent materials are alkaline earth metal silicates which are activated by rare earth, with the chemical general formula : Ba1-bMbSi2O(5-a/2)Da : Eux, Lny, wherein M represents one or two elements selected from Mg, Ca or Sr, 0≤a<2, 0≤b<0.5, 0

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