La~(3+)掺杂Eu~(3+)偏苯三酸邻菲咯啉三元配合物的合成和荧光性能

以偏苯三酸(TLA)为第一配体,邻菲咯啉(phen)为第二配体,合成了铕偏苯三酸邻菲咯啉及铕镧系列发光配合物Eu1-xLax(TLA)phen(x=0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8)。通过红外光谱、TG-DTG和扫描电子显微镜对配合物进行了表征;通过荧光光谱分析,探讨了掺杂荧光惰性离子对三元配合物的发光性能的影响。结果表明:该系列配合物均表现为强的Eu3+的特征荧光,La3+的掺入能增强配合物的的荧光强度,但发射峰的位置基本上没有变化,其中5D0→7F1和5D0→7F2的跃迁发射较强,所有掺杂配合物的荧光强度都大于未掺杂的配合物的荧光强度。

Synthesis and Fluorescence Properties of Eu3+-trimellitic Acid-1,10-phenanthroline Ternary Complexes Doped with La3+ Ion

The rare-earth complexes with aromatic carboxylic acids are a kind of good luminous materials because of the good light-emitting singleness,high luminous intensity and a high quantum efficiency.In recent years,more and more attention has been paid to the fluorescence properties of these complexes.The research showed that addition of the non-fluorescent rare-earth ions can enhance the fluorescence intensity of rare-earth complexes.The trimellitic acid,which has a variety of forms of coordination,is a good pe...