新型Eu^(3+)、Tb^(3+)掺杂配合物的合成与荧光性能研究

Study on the Novel Eu^(3+),Tb^(3+) Compound and Luminescent Properties

合成了稀土(Eu3+和Tb3+)与二苯甲酰甲烷(DBM)、2,2′-联吡啶(Dipy)的一系列稀土配合物EuxTb1-x(DBM)3Dipy。元素分析和红外分析确定了配合物的组成,荧光光谱研究了荧光性质。铽掺入配合物后,铽能极大地增强铕的特征荧光,铽对铕配合物的发光有协同作用。在该系列配合物中,不仅有机配体可以将吸收的能量传递给发光的铕离子使其发光,而且铽离子也可将其吸收的能量通过分子内能量传递给铕离子。

A series of complex EuxTb1-x （DBM）3Dipy were synthesized in anhydrous alcohol with dibenzoyl methane （DBM） and 2,2-dipyridyl （Dipy）. The compounds were characterized by elemental analysis and IR spectra and fluorescent properties were studied by fluorescent spectra. The fluorescence emission intensity of Eu^3＋ would be enhanced by Tb^3＋ in the mixed complexes（Tb^3＋ was mixed）. The fluorescence spectra of the complexes indicated that the fluorescence emission intensity of Eu^3＋ was sensitized by Tb^3＋ in the complexes. Not only the ligands but also the terbium complex can transfer the absorbed energy to Eu^3＋ in the complexes.