安徽大学学报(自然科学版)
安徽大學學報(自然科學版)
안휘대학학보(자연과학판)
JOURNAL OF ANHUI UNIVERSITY(NATURAL SCIENCES EDITION)
2014年
3期
80-85
,共6页
张俊%高雅%邓湘平%袁孝友
張俊%高雅%鄧湘平%袁孝友
장준%고아%산상평%원효우
AAO模板%GdMnx Oy纳米线%铕掺杂%荧光
AAO模闆%GdMnx Oy納米線%銪摻雜%熒光
AAO모판%GdMnx Oy납미선%유참잡%형광
AAO template%GdMnxOy nanowire%Eu doped%luminescence
用负压抽滤法,在多孔阳极氧化铝模板( AAO)中制备GdMnx Oy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GdMnx Oy纳米线的形貌、组成和结构.实验结果表明:GdMnx Oy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,GdMnx Oy:Eu纳米线在593 nm附近有一组强的发射峰,此为5 D0-7 F1跃迁所致,当Eu3+掺杂浓度比例为4%时,GdMnx Oy:Eu纳米线荧光强度最强.
用負壓抽濾法,在多孔暘極氧化鋁模闆( AAO)中製備GdMnx Oy納米線陣列.分彆以掃描電子顯微鏡(SEM)、透射電子顯微鏡(TEM)、能量色散譜(EDS)、X 射線衍射儀(XRD)、選區電子衍射(SAED)錶徵GdMnx Oy納米線的形貌、組成和結構.實驗結果錶明:GdMnx Oy納米線呎吋、形貌均一,為非晶態結構,Gd、Mn、O元素的原子百分比是1.65∶0.14∶98.21,用熒光分光光度計(PL,F-4500)錶徵銪摻雜的GdMnxOy納米線熒光性能,結果錶明:室溫下,噹激髮波長為394 nm時,GdMnx Oy:Eu納米線在593 nm附近有一組彊的髮射峰,此為5 D0-7 F1躍遷所緻,噹Eu3+摻雜濃度比例為4%時,GdMnx Oy:Eu納米線熒光彊度最彊.
용부압추려법,재다공양겁양화려모판( AAO)중제비GdMnx Oy납미선진렬.분별이소묘전자현미경(SEM)、투사전자현미경(TEM)、능량색산보(EDS)、X 사선연사의(XRD)、선구전자연사(SAED)표정GdMnx Oy납미선적형모、조성화결구.실험결과표명:GdMnx Oy납미선척촌、형모균일,위비정태결구,Gd、Mn、O원소적원자백분비시1.65∶0.14∶98.21,용형광분광광도계(PL,F-4500)표정유참잡적GdMnxOy납미선형광성능,결과표명:실온하,당격발파장위394 nm시,GdMnx Oy:Eu납미선재593 nm부근유일조강적발사봉,차위5 D0-7 F1약천소치,당Eu3+참잡농도비례위4%시,GdMnx Oy:Eu납미선형광강도최강.
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. 14∶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 Eu3+ is 4%.