电纺制备LaOCl:Eu^(3+)纳米纤维及其荧光性能研究

Electrospinng of LaOCl:Eu^(3+) nanofibers with fluorescence property

采用静电纺丝与高温煅烧法结合制备了圆片串联的LaOCl:Eu3+荧光纳米纤维。通过扫描电镜(SEM)、X射线衍射(XRD)、热重(TG)、傅里叶红外光谱(FTIR)、透射电镜(TEM)、荧光分析(PL)对样品形貌和结构进行表征。结果表明,所得LaOCl:Eu3+纳米纤维是以圆片串联成直径为50~150nm的纤维,其可被295nm的紫外光有效激发,在615nm处出现最强峰,对应于发射红光的5 D0→7F2电偶极特征跃迁。

Wafer series LaOCl：Eu^3＋ nanofibers were prepared by electrospinning and high-temperature calcinations technologies.The morphology and properties were analysized through the SEM,XRD,TG-DTA,FTIR,TEM and PL.The results showed that the nanofibers were consisted of the wafer nanograins with diameter of 50-150nm.It can be effectively stimulated by 295 nm uv light and appeared the strongest peak at 615 nm.The strongest peak corresponded to the red light of electric dipole transition of ^5 D0→^7F2energy levels of Eu^3＋.