Preparation and luminescence properties of Ca3(PO4)2: Re3+ (Re=Eu,Dy,Ce,Tb) phosphors

Abstract

Abstract: A series of phosphors Ca3(1-x)(PO4)2: xRE3+(RE = Eu, Dy, Ce, Tb) have been prepared by a high temperature solid-state reaction method. Their luminescence properties were investigated. The results indicated that all samples could be effectively excited by ultraviolet light with the range from blue to red light, and they are the potential phosphors to obtain white LED excited by ultraviolet light.In the range of 0.005 to 0.03 mol, photoluminescence quenching concentration of Eu3+, Dy3+, and Ce3+-doped are 0.025, 0.025, and 0.02 mol, respectively, and Tb3+-doped samples has high quenching concentration.

Key words: materials, phosphor, high temperature solid-state reaction, phosphate substrate, white LED

MENG Tao, HU Zheng-fa, ZHANG Wei, WANG Xiong-ting, YE Ding-hua, WANG Yin-hai, LUO Li, WANG Wei, DU Ji-Fang . Preparation and luminescence properties of Ca3(PO4)2: Re3+ (Re=Eu,Dy,Ce,Tb) phosphors[J]. J4, 2013, 30(3): 303-309.

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