硅酸盐学报2011，Vol.39Issue(7)：1170-1174,5.
Sc3+/Tm3+/Yb3+共掺六方NaYF4纳米粒子的上转换发光特性
Up-Conversion Luminescence Characteristic of Sc3+/Tm3+/Yb3+ Tridoped Nano Hexagonal NaYF4
摘要
Abstract
At present, though Tm3+ up-conversion (UC) luminescence of NaYF4 co-doped with Tm3+ and Yb3+ as sensitizer has the highest efficiency, it is not efficient enough for application. In experiment, Sc3+ was used to dope Na(Y1-x-y,Tmx,Yby), and effects of different concentrations of Sc3+ co-doping on the UC luminescence of Na(Y1_x_y,Tm(:,Ybj,)F4 was investigated. Phase component and crystallite size of hydro-thermal synthesis samples were characterized by the X-ray diffractometry and transmission electron microscopy. The UC luminescence and fluorescence lifetime were analyzed by the fluorescence spectrophotometry. Analysis results indicated the UC efficiency can be further enhanced by co-doping with mole fraction of 5% Sc3+, and the UC intensity is twice that without Sc3+ co-doping. Furthermore, lifetime of the fluorescence does not change obviously.关键词
稀土铥/氟钇酸钠/上转换发光/钪共掺杂Key words
rare earth thulium/ yttrium-fluoride natrium/ up-conversion luminescence/ scandium co-doping分类
化学工程引用本文复制引用
黄清明,俞建长..Sc3+/Tm3+/Yb3+共掺六方NaYF4纳米粒子的上转换发光特性[J].硅酸盐学报,2011,39(7):1170-1174,5.基金项目
福建省自然科学基金(2008J0146)资助项目. （2008J0146）
