2013•ECS Solid State LettersOpen access

Synthesis of Red-Emitting Ca3-xEuxZrSi2O9 Phosphors

Sun Woog Kim, Yu Zuo, Toshiyuki Masui, Nobuhito Imanaka

Abstract

Red-emitting Ca 3- x Eu x ZrSi 2 O 9 (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 5 D 0 to 7 F J ( J = 0, 1, 2, 3, and 4) of Eu 3+ . The highest emission intensity was obtained for Ca 2.83 Eu 0.17 ZrSi 2 O 9 , where the relative emission intensity was 84% of that for a commercial red-emitting Y 1.94 Eu 0.06 O 3 phosphor. The concentration quenching of the Eu 3+ -related luminescence in the Ca 3- x Eu x ZrSi 2 O 9 (0.05 ≤ x ≤ 0.30) phosphors can be mainly attributed to dipole-dipole interaction.

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Key concepts: Phosphor, Photoluminescence, Emission intensity, Materials science, Luminescence, Quenching (fluorescence), Analytical Chemistry (journal), Intensity (physics)