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Synthesis of Red-Emitting Ca3-xEuxZrSi2O9 Phosphors
ECS Solid State Letters2013Vol. 2(9), pp. R34–R36
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Abstract
Red-emitting Ca3-xEuxZrSi2O9 (0.05 ≤ x ≤ 0.30) single phase phosphors were synthesized using the conventional solid-state reaction method and their photoluminescence properties were characterized. These phosphors exhibited typical emission peaks assigned to the transition from 5D0 to 7FJ (J = 0, 1, 2, 3, and 4) of Eu3+. The highest emission intensity was obtained for Ca2.83Eu0.17ZrSi2O9, where the relative emission intensity was 84% of that for a commercial red-emitting Y1.94Eu0.06O3 phosphor. The concentration quenching of the Eu3+-related luminescence in the Ca3-xEuxZrSi2O9 (0.05 ≤ x ≤ 0.30) phosphors can be mainly attributed to dipole-dipole interaction.
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