为了增强稀土络合物的物理化学性能和成型加工性能，以扩大稀土发光材料在防伪、荧光标识与OLED等领域中的应用，本文将实验合成的铕的络合物溶于聚丙烯腈，通过静电纺丝技术制备了一种新型的Eu(BPA)3phen/PAN紫外荧光复合纳米纤维。采用扫描电子显微镜(SEM)、X射线能量色散谱仪(EDS)、傅立叶红外光谱仪(FT-IR)、热重差热分析仪(TG-DSC)与荧光光谱仪(FL)对发光纳米纤维的性能进行分析。实验结果表明，复合纤维的直径分布在200~400 nm，且随机取向。热重分析表明，Eu(BPA)3phen/PAN复合纤维的初始分解温度约为310 ℃，热稳定性较好。此外，研究了掺杂不同浓度Eu(BPA)3phen对纤维发光性能的影响，发现纤维的荧光发射强度随着Eu(BPA)3phen含量的增加呈现先增后减的变化趋势，当Eu(BPA)3phen的含量为2.5%时，荧光强度最高。这种新型的的Eu(BPA)3phen/PAN荧光复合纤维在防伪和OLED等方面具有潜在应用价值。

In order to enhance the physicochemical properties and processability of rare earth complexes, and to further expand the practical applications in the field of anti-counterfeiting, fluorescent labeling and OLED, in this paper, novel luminescent composite fibers were prepared by electrospinning of PAN solutions containing the europium complex Eu(BPA)3phen. The characterization of the luminescent fibers has been investigated by scanning electron microscopy(SEM), energy dispersive spectroscopy(EDS), Fourier infrared spectrometer(FTIR), thermogravimetric analysis(TG-DSC) and fluorescence spectroscopy(PL). The results show that the diameter of composite fibers distributs between 200 nm to 400 nm, and random orientation. Thermogravimetric analysis indicates that the initial decomposition temperature of Eu(BPA)3phen/PAN composite fibers is 330 ℃, approximately. Furthermore, fluorescence spectra studies revealed that with the increasing of the incorporation of complexes into PAN, the fluorescence intensities were remarkable enhanced and reached its maximum value at 2.5% for Eu(BPA)3phen/PAN fibers. The further intensity decreased with the increasing content of the complexes because of typical emission concentration quenching. The novel luminescent composite nanofibers have potential applications in the field of anti-counterfeiting and OLED.