Nd^(3+)掺杂的β-NaYbF_4的制备及其协作敏化上转换研究  

Preparation and Cooperative Upconversion of Nd^(3+)-Doped β-NaYbF_4

作　　者：步妍妍[1] 李永涛[1,2] 王祥夫[1] 

机构地区：[1]南京邮电大学理学院,江苏南京210023 [2]东南大学物理系,江苏南京211102

出　　处：《化工时刊》2013年第8期5-9,共5页Chemical Industry Times

基　　金：国家自然科学基金863项目(No.2011AA050526);江苏省科技支撑(BE2011191)

摘　　要：采用共沉淀法制备了β-NaYbF4以及Nd3+掺杂的β-NaYbF4上转换材料并研究了其上转换发光特性。通过X射线衍射仪、扫描电镜和荧光光谱测量与分析了样品结构和光致发光性质。在980nm激光激发下Nd3+掺杂的β-NaYbF4发射出紫外、可见和红外光上转换光。Yb3+-Yb3+离子对协作上转换同时敏化了Nd3+离子。β- NaYbF4 and Nd3＋ doped β- NaYbF4 are synthesized by coprecipitation method, and thire up-conversion luminescence is studied. Morphology structure and upconversion fluorescence of the samples are studied by X -ray diffraction, scanning electron microscopy, and upconversion spectra. The ultraviolet, visible and infrared luminescence are observed under 980 nm excitation. Yb3＋ - Yb3 ＋ pairs occur cooperative upconversion and sensize the Nd3＋ ions.

关 键 词：上转换 共沉淀法 荧光光谱 Nd3+ 

分 类 号：O611.3[理学—无机化学]