【摘 要】
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In this paper,the Sr3Y2(BO3)4:Eu3+ phosphor was synthesized by high temperature solid-state reaction method and the luminescence characteristics were investigat
【机 构】
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College of Physics Science & Technology,Hebei University,Baoding 071002,China
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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 s Do_TF2 transition of Eu3+ under 365 nm 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,365 nm and 400 nm) and blue (470nm) 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 Intationale del’Eclairage chromaticity (x,y) of Sr3Y2(BOa)4:Eu3+ phosphor is (0.640,0.355) at 15 mol% Eu3+.
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