采用静电纺丝技术将聚苯胺(PANI)和稀土配合物Eu(BA),phen掺杂到高分子材料聚乙烯吡咯烷酮(PVP)中,制备出新型的具有光电双功能的Eu(BA),phen/PANI/PVP复合纳米纤维.采用扫描电子显微镜、X射线能量色散谱仪、荧光光谱仪及宽频介电松弛谱仪对样品进行了表征.实验结果表明,复合纳米纤维直径为(270±31)nm.在275nm紫外光激发下,Eu(BA),phen/PANIZPVP复合纳米纤维发射出主峰位于580,594和617nm的红光,对应于Eu3+的5D0-7F0,5D0-7F1和5D0-F2跃迁.当m[Eu(BA)3phen]:m(PANI):m(PVP)=15:10:100时,复合纳米纤维的荧光发射最强.复合纤维的电导率随PANI含量的增大而升高.在m(PANI):m(PVP)=50:100时,其电导率在高频(10^6Hz)下达到1.5×10^-6S/cm.
Luminescence-electricity bifunctional Eu (BA)3phen/PANI/PVP composite nanofibers were prepared through the doping of polyaniline(PANI) and rare earth complex[ Eu( BA)3phen] in polyrinyl phrroli- done (PVP) via electrospinning. Scanning electron microscope (SEM), energy dispersive spectrometer (EDS) , fluorescence spectrometer and broadband dielectric spectrometer were used to characterize the sam- ples. The results indicated that the average diameter of the Eu (BA) 3 phen/PANI/PVP composite nanofibers was (270±31 ) nm. Under excitation of 275 nm, the Eu (BA) 3 phen/PANI/PVP composite nanofibers emitted the predominant emission at 580, 594 and 617 nm, corresponding to 5 D0-7 F0, 5D0-7 F1 and 5D0-7 F2 transitions of Eu3+, respectively. The strongest emission intensity occurred when the mass ratios of Eu(BA)3phen: PANI: PVP was 15:10:100, the electric conductivity of the composite nanofibers increased with the increase of PANI content, and reached 1.5×10^-6 S/cm in high frequency electric field( 10^6 Hz) when the mass ratio of PANI to PVP was 50%.