硅酸盐学报2016，Vol.44Issue(7)：964-968,5.DOI:10.14062/j.issn.0454-5648.2016.07.08
柠檬酸凝胶燃烧法制备Tm,Yb：（LuGd）2O3纳米粉体及其发光性能
Preparation of Tm,Yb:(LuGd)2O3 Nano-Powder by Citric Acid Gel Combustion Method and Its Luminescence Property
摘要
Abstract
Tm,Yb:(LuGd)2O3 nano-powder was prepared by a gel combustion method with citric acid as an incendiary agent and polyethylene glycol as a dispersing agent. The sample was obtained under the optimal preparation condition(i.e., Lu3+-doped mole fractions of 25% and pH value of 6). The average particle size of nanopowder prepared is approximately 55nm. The features of excitation and emission spectra of Tm,Yb:(LuGd)2O3 powder at room temperature were investigated. The results show that the most intense excitation and emission peaks are located at 361and 454nm, which are corresponding to the3H6→1D2 and1G4→3H6 level transitions of Tm3+, respectively. The upconversion fluorescence spectrum of sample indicates that the blue and red lights fluorescence peaks of the sample are located at 484 nm and 658nm, which are corresponding to the1G4→3H6and1G4→3F4 level transitions of Tm3+, respectively. The effect of mole fraction of Tm3+-doped on the upconversion luminescence intensity was investigated. The optimum amount of Tm3+-doped is 4%. In addition, the light transition mechanism was also discussed.关键词
柠檬酸凝胶燃烧法/铥镱掺杂氧化镥粉体/激发和发射光谱/上转换荧光谱Key words
gel combustion method with citric acid/thulium and ytterbium doped lutetium oxide gadolinium oxide powder/excitation and emission spectra/upconversion fluorescence spectra分类
化学工程引用本文复制引用
刘颖,项贤晓,朱忠丽..柠檬酸凝胶燃烧法制备Tm,Yb：（LuGd）2O3纳米粉体及其发光性能[J].硅酸盐学报,2016,44(7):964-968,5.基金项目
吉林省科技发展计划项目(20120223)。 （20120223）
