Na_2WO_4∶Sb^(3+)荧光粉的制备和发光性质  

Preparation and Luminescence Properties of Na_2WO_4∶Sb^(3+) Phosphors

作　　者：张蕤[1] 谢丽娟[1] 邹阳[1] 蔡建亮[1] 孟建新[2] 

机构地区：[1]暨南大学化学系,广东广州510632 [2]暨南大学纳米化学研究所,广东广州510632

出　　处：《发光学报》2012年第7期712-715,共4页Chinese Journal of Luminescence

基　　金：国家自然科学基金(30670523);中央高校基本科研业务费专项基金资助项目

摘　　要：通过溶胶-凝胶法制备了纯相的Na2WO4∶Sb3+荧光粉,通过X射线衍射表征了其晶体结构,使用紫外-可见分光光度计研究了样品的发光性质。结果表明,用250～320 nm范围的紫外光激发时,Na2WO4∶Sb3+荧光粉可在410～550 nm范围内给出较强的光发射。其最佳激发波长为280 nm,最强发射峰在470 nm处。Na2WO4∶Sb3+荧光粉的最佳制备温度为800℃,Sb3+的最佳掺杂摩尔分数为0.01。对Na2WO4∶Sb3+荧光粉的发光机理也进行了初步探究。Na2WO4∶Sb^3＋ phosphors were prepared with a sol-gel method.The samples were characterized with X-ray diffraction,reflectance spectra,emission and excitation spectra.The phosphor can be excited with ultrovilet light in the range of 250~320 nm and give intensitive emission in the range of 410~550 nm.The maximum emission and excitation wavelength is 470 nm and 280 nm,respectively.The optimized sintered temperature is 800 ℃ and samples with a Sb^3＋ concentration of 0.01 give the strongest emission.The luminescence mechanism of Na2WO4∶Sb^3＋ phosphors were also briefly discussed.

关 键 词：荧光粉 溶胶-凝胶法 SB Na2WO4 

分 类 号：O482.31[理学—固体物理] O611.4[理学—物理]