掺杂镧、钇的铽(Ⅲ)乙酰丙酮三元配合物的合成及荧光性质研究  

Synthesis and Photoluminescence Properties of Tb^(3+)-Acetylacetone Ternary Complexes Doped with La^(3+) or Y^(3+)

作　　者：吴惠霞[1] 徐丽霞[1] 忻驰洋[1] 余锡宾[1] 王则民[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《光谱学与光谱分析》2005年第1期69-72,共4页Spectroscopy and Spectral Analysis

基　　金：上海市教委科技发展基金(2002DK10)资助项目

摘　　要：合成了四个系列稀土掺杂铽乙酰丙酮(Hacac)三元配合物RExTb1-x(acac)3phen和RExTb1-x(acac)3bipy(RE=La,Y;x=0,010,020,030,050,070,090,100;phen1,10邻菲罗啉;bipy2,2’联吡啶)。通过红外光谱、X射线粉末衍射对配合物进行了表征。对各系列配合物进行荧光光谱研究,发现La3+,Y3+对Tb3+离子均有荧光增敏作用,并且La3+>Y3+。当x=01～03,多数掺杂配合物比未掺杂铽三元配合物具有更好的发光性能。Four series of solid complexes including REx Tb1-x(acac)(3)phen and REx Tb1-x (acac)(3)bipy (RE= La, Y; x = 0, 0, 10, 0.20, 0.30, 0.50, 0.70, 0.90, 1.00) were synthesized. These complexes were characterized by IR spectra and XRD. Photoluminescence (PL) properties of these complexes were studied. The relation between their fluorescence intensities and the content of doped ions was also discussed. The experimental results show that the PL intensity of Tb3+ was sensitized by La3+ or Y3+, and La3+ is better than Y3+ in enhancing the fluorescence of Tb3+. When x = 0.1-0.3, the fluorescence intensities of most doped complexes are stronger than their corresponding pure Tb3+ complex.

关 键 词：三元配合物 铽(Ⅲ) 荧光增敏 荧光性质 X射线粉末衍射 LA^3+ 掺杂 合成 乙酰丙酮 Tb^3+ 

分 类 号：O614[理学—无机化学] O641[理学—化学]