模板法制备GdMn_xO_y纳米线阵列及荧光性能  

Template synthesis and luminescence properties of GdMn_xO_y nanowire arrays

作　　者：张俊[1] 高雅[1] 邓湘平[1] 袁孝友[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230601

出　　处：《安徽大学学报（自然科学版）》2014年第3期80-85,共6页Journal of Anhui University(Natural Science Edition)

基　　金：国家质检总局科技计划项目(2012IK084);安徽省高等学校省级自然科学基金资助项目(KJ2011A004)

摘　　要：用负压抽滤法,在多孔阳极氧化铝模板(AAO)中制备GdMnxOy纳米线阵列.分别以扫描电子显微镜(SEM)、透射电子显微镜(TEM)、能量色散谱(EDS)、X射线衍射仪(XRD)、选区电子衍射(SAED)表征GdMnxOy纳米线的形貌、组成和结构.实验结果表明:GdMnxOy纳米线尺寸、形貌均一,为非晶态结构,Gd、Mn、O元素的原子百分比是1.65∶0.14∶98.21,用荧光分光光度计(PL,F-4500)表征铕掺杂的GdMnxOy纳米线荧光性能,结果表明:室温下,当激发波长为394 nm时,GdMnxOy:Eu纳米线在593 nm附近有一组强的发射峰,此为5D0-7F1跃迁所致,当Eu3+掺杂浓度比例为4%时,GdMnxOy:Eu纳米线荧光强度最强.GdMnxOy nanowire arrays were fabricated in the porous anodic aluminum oxide （AAO） template with suction filtering at subatmospheric pressure. The scanning electron microscopy （SEM）, the transmission electron microscope （TEM）, the energy dispersive spectrometer （EDS）, the X-ray diffraction （XRD） and the selected area electron diffraction （SAED） were respectively employed to characterize the morphology, the chemical composition and the structure of the GdMnx- Oy nanowires. The results show that the GdMnx Oy nanowires are amorphous in structure and the GdMnx-Oy nanowires are uniform in morphology and size, the ratio of atomic percentage of Gd, Mn, O is 1.65：0. ld ：98.21. The luminescence performance of GdMnx Oy ： Eu was investigated using photoluminescence spectrophotometer （PL, F-4500）. Where the GdMnxOy：Eu is excitated with 394 nm at room temperature, there is an emission peak of GdMnxOy ：Eu at 593 nm is corresponding to 5^D0-7^ F1 transition, and the nanowire arrays possess the strongest fluorescence when the doping concentration ratio of Eu^3＋ is 4%.

关 键 词：AAO模板 GdMnxOy 纳米线 铕掺杂 荧光 

分 类 号：O611.62[理学—无机化学]