Abstract
In this paper, the Sr3Y2(BO3)4:Eu3+ phosphor was synthesized by high temperature solid-state reaction method and the luminescence characteristics were investigated. The emission spectrum exhibits one strong red emission at 613 nm corresponding to the electric dipole 5D0–7F2 transition of Eu3+ under 365nm excitation, this is because Eu3+ substituted for Y3+ occupied the non-centrosymmetric position in the crystal structure of Sr3Y2(BO3)4. The excitation spectrum indicates that the phosphor can be effectively excited by ultraviolet (254 nm, 365nm and 400 nm) and blue (470 nm) light. The effect of Eu3+ concentration on the red emission of Sr3Y2(BO3)4:Eu3+ was measured, the result shows that the emission intensities increase with increasing Eu3+ concentration, then decrease. The Commission Internationale del'Eclairage chromaticity (x, y) of Sr3Y2(BO3)4: Eu3+ phosphor is (0.640, 0.355) at 15 mol% Eu3+.
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