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| - US2006/028122 discloses a silicate-based yellow-green phosphor has a formula A2SiO4:Eu2+ D, where A is at least one of a divalent metal comprising Sr, Ca, Ba, Mg, Zn or cadmium (Cd); and D is a dopant comprising F, Cl, Br, iodine (I), P, S and N. The dopant D can be present in the phosphor in an amount ranging from about 0.01 to 20 mole percent.
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