论文部分内容阅读
合成并用FT IR和元素分析方法表征了Eu(DBM) 3·Phen .对不同浓度的稀土络合物溶液和掺杂聚合物的激发光谱和发射光谱进行了测定和研究 ,结果发现在溶液和固体介质中都存在着溶质间的相互作用 .这种自极化相互作用影响包括两个方面 :有机配体的吸收光谱出现红移现象 ;稀土离子的对称性的变化 .自极化相互作用导致分子内的电荷分布变化 ,改变了激发态和基态间的能量 ,激发光谱出现红移 .在低浓度时 ,介质的性质对红移影响较大 ,高浓度时 ,介质的影响变小 .还讨论了各种因素对稀土掺杂体系的荧光性质的影响
The Eu (DBM) 3 · Phen was synthesized and characterized by FT-IR and elemental analysis. The excitation and emission spectra of rare earth complex solutions and doped polymers with different concentrations were determined and studied. The results showed that in solution and solid There are two kinds of interaction between solute in media: the red shift of the absorption spectrum of organic ligands; the change of the symmetry of rare earth ions. The change of the charge distribution changes the energy between the excited state and the ground state, and the excitation spectrum appears redshift.When the concentration is low, the property of the medium has a great influence on the redshift, and the effect of the medium becomes smaller when the concentration is high. Effects of various factors on the fluorescence properties of rare earth doped systems