Nano-preparation promoting effectively luminescent properties of one-dimensional rare earth oxides

作     者：李俊峰 卢冠忠 谢宝庚 王艳芹 郭耘 郭杨龙 

作者机构：Key Laboratory for Advanced Materials and Research Institute of Industrial CatalysisEast China University of Science and Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2012年第30卷第11期

页      面：1096-1101页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：supported by National Basic Research Program of China (2010CB732300) the National High Technology Research and Development Program of China (2011AA03A406) the "ShuGuang" Project of Shanghai Municipal Education Commission and Shanghai Education Development Foundation (10GG23) 

主　　题：rare earth oxides one-dimensional morphology hydrothermal synthesis luminescence property Eu^3+ dopant 

摘      要：Rare earth （La, Nd and Tb） oxides with one-dimensional micro/nanostmcatres were synthesized hydrothermally under facile and mild conditions with two surfactants, and characterized by X-ray diffraction （XRD）, thermal gravimetry （TG）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM） and photoluminescence. The results showed that the synthesized rare earth oxides behaved regular nano- and micro-scale structures. And the morphologies of samples depended on the radii of rare earth ions, with the help of two sur- factants of sodium dodecyl sulfonic and PEG 600. Nanocrystalline La2O3：Eu^3＋ possessed good photoluminescence （PL） property and might be used as a nanosized phosphor, its PL intensity was akered by the doping Eu^3＋ concentration and the optimum concentration of Eu^3＋ was 3 mol.%. In comparison with bulk Eu^3＋/La2O3, Eu^3＋/nano-La2O3 showed better photoluminescence property, nearly equal to that of nanocrtstalline La2O3：Eu^3＋. Tb4O7 microwires showed interesting photoluminescence properties.