Abstract: CaSiO3:Eu2+ ,Dy3+ silicates storage luminescent materials were prepared by solgel method that use ethyl silicate,CaSiO3:Eu2+ ,Dy3  as the starting materials. The lattice structure and spectroscopic properties of storage luminescent materials and the influencing factors on luminescence properties were studied by Xray diffraction, fluorescence spectrum and other analytical tools. The results indicate that the calcination temperature have great influence on lattice structure and luminescence properties of sample. When the temperature is below 1 300 ℃, crystal lattice structure of sample is imperfect. The temperature higher than 1 400 ℃, the sample is prone to produce sintering phenomenon. Eu2+ as luminescent centers and its concentration have great influence on luminescence properties of samples. When the Eu2+ concentration was 0.005 mol, the luminous intensity of sample reached the maximum. In this case, the emission spectrum of the sample was an asymmetrical transmission that the peak located in 544 nm.

Key words: Rare earth, Solgel method, Silicate, Energy storage luminescent materials, Emission spectrum

摘要： 以正硅酸乙酯、CaO、Eu2O3 和Dy2O3 为原料,采用溶胶灢凝胶法制备了硅酸盐蓄能发光材料CaSiO3:
Eu2+ ,Dy3+ ,并利用X射线衍射、荧光光谱等分析手段研究了蓄能发光材料的晶格结构、光谱特性和影响材料发光
性能的工艺因素。结果表明,灼烧温度对样品晶格结构及发光性能有重要影响。当温度低于1300 曟时,样品晶格
结构发育不完善,温度高于1400曟时,样品容易产生烧结现象。Eu2+ 作为发光中心,其浓度对样品发光性能有重要
影响,当Eu2+ 掺杂的物质的量为0.005mol时,样品发光强度最大,此时,样品的发射光谱是一个峰值位于544nm
的不对称宽带发射。

关键词: 稀土, 溶胶灢凝胶法 , 硅酸盐 , 蓄能发光材料 , 发射光谱