Eu^(3+)掺杂二氧化钛纳米粉末的制备及发光性质研究  

Research on the Preparation and Luminescence Properties of Eu^(3+) Doped with TiO_2 Nano-powder

作　　者：刘国敬[1,2] 胡晓云[1] 潘静[1] 张德恺[1] 韩永举[2] 叶岩溪[1] 

机构地区：[1]西北大学物理学系 [2]中国人民解放军68242部队

出　　处：《菏泽学院学报》2009年第5期70-74,共5页Journal of Heze University

基　　金：西北大学研究生创新教育项目(08YSY02)

摘　　要：以钛酸四丁酯为前驱物,利用溶胶-凝胶法制备了Eu3+掺杂TiO2纳米粉末.首先对纳米粉末的发光性质进行了一定的研究,找出了纳米晶发光效率最佳激发波长,然后用最佳激发波长对不同退火温度下摩尔分数为0.5%Eu3+离子掺杂TiO2纳米晶和同一退火温度下不同摩尔分数Eu3+离子掺杂的纳米晶进行激发,对发射光谱进行分析,从而得到制备纳米晶的最佳退火温度和最佳Eu3+离子掺杂的摩尔分数.Using tetrabutyl titanate as precursor, europium nitrate as the dopant, Eu^3＋ doped TiO2 nano - pow- der was prepared by sol - gel method. Firstly, the nature of luminescence of nano - powder was studied, and the best excitation wavelength was found. Then 0. 5% Eu^3＋ doped with TiO2 nano -powder annealed at different temperature and the Eu^3＋ doped with TiO2 of different mole fractions was excited by the best wavelength. After an anal- ysis of the emission spectra, the best annealed temperature and the best mole fraction of Eu3 doped with particles were gained.

关 键 词：Eu3+掺杂TiO2 纳米粉末 制备 发光性质 

分 类 号：O484.4[理学—固体物理]