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Effect of Nanostructure and Europium Doping on Fluorescence Properties of Yb x Mn y O z :Eu 3+ Nanotube Arrays
Russian Journal of Inorganic Chemistry ( IF 2.1 ) Pub Date : 2020-07-02 , DOI: 10.1134/s0036023620060273
Tong Zhang , Guangzheng Peng , Peng Li , Dong Xiang , Xiaoyou Yuan

Abstract

YbxMnyOz:Eu3+ nanotube arrays have been synthesized in anodic aluminum oxide (AAO) templates with negative pressure filtration. The morphology, structure, and composition have been characterized by SEM, TEM, HRTEM, XRD and EDS, respectively. Compared with nanoparticles and nanowire arrays excited by 394 nm light wave, YbxMnyOz:Eu3+ nanotube arrays exhibit fluorescence enhancement and are accompanied by red and blue shift, and there are three fluorescence emission peaks at 480 nm, 590 nm and 702 nm, respectively. The peaks at 590 and 702 nm correspond to the 5D07F1 and 5D07F4 energy level transition of Eu3+, and the peak of 480 nm is from the “cooperative fluorescence” due to two-photon excitation. The fluorescence intensity of YbxMnyOz:Eu3+ nanotube arrays increases with the doping concentration of Eu3+, which reaches a maximum at 5 vol %, and remarkably decreases at higher concentrations.


中文翻译:

纳米结构和Euro掺杂对Yb x Mn y O z:Eu 3+纳米管阵列荧光性质的影响

摘要

Yb x Mn y O z:Eu 3+纳米管阵列已在带有负压过滤的阳极氧化铝(AAO)模板中合成。分别通过SEM,TEM,HRTEM,XRD和EDS表征了形态,结构和组成。与受394 nm光激发的纳米颗粒和纳米线阵列相比,Yb x Mn y O z:Eu 3+纳米管阵列显示出荧光增强,并伴有红移和蓝移,并且在480 nm,590 nm处有三个荧光发射峰和702 nm。590和702 nm处的峰对应于5 D 07Eu 3+的F 15 D 07 F 4能级跃迁,并且由于双光子激发,480 nm的峰来自“合作荧光”。Yb组成的荧光强度X的Mn ÿ ø ž:Eu的3+纳米管阵列用Eu的掺杂浓度增加3+,其在5%(体积)达到最大值,并且显着地在较高浓度降低。
更新日期:2020-07-02
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