合成了一种新型的稀土配合物Eu0.5Tb0.5(TTA)3Bipy,并采用原位乳液聚合法制备了Eu0.5Tb0.5(TTA)3Bipy/PMMA稀土聚合物材料。利用红外光谱仪(IR)、电子探针X射线能谱仪等对稀土聚合物发光材料的结构进行表征,并利用扫描隧道电子显微镜(SEM)、荧光光谱仪(FS)等分别研究了该发光材料的微观形貌,探讨了其发光性能。结果表明,Eu0.5Tb0.5(TTA)3Bipy/PMMA仍保持Eu0.5Tb0.5(TTA)2Bipy原有的发光特性;在365nm紫外光的激发下,产生发光峰在612nm附近、谱线带宽为10.4nm的红光发射,发光亮度高,色纯度高,是性能优良的稀土聚合物发光材料。
In this paper, Eu0.5Tb0.5(TTA) 3 Bipy was synthesized and Eu0.5 Tb0.5(TTA) 3 Bipy/PMMA was prepared by in-situ polymerization. The structure of Eu0.5Tb0.5(TTA)3Bipy/PMMA was characterized by FT-IR spectra. Microscopic morphology and photoluminescent properties were investigated by SEM photographs and fluorescence spectras. The results indicated that Eu0.5Tb0.5(TTA)3 Bipy/PMMA could emit mostly characteristic fluorescence of europium ion and intense red fluorescence with peak wavelength at 612nm and bandwidth of 10.4 nm(purity:0. 9908) under UV excitation at 365nm. It was demonstrated that Eu0.5Tb0.5(TTA)3Bipy/PMMA was an excellent red photoluminescent rare-earth polymer material.