LaF3：Eu纳米管阵列可控制备及荧光性能

在多孔氧化铝模板中，采用负压抽滤法制备了LaF3：Eu纳米管阵列。通过X射线衍射仪、扫描电子显微镜、选区电子衍射和能量色散谱对LaF3：Eu纳米管的晶相结构、形貌、元素组成进行了表征。研究了Eu抖掺杂量对LaF3：Eu纳米管荧光性能的影响。结果表明：制备LaF3：Eu纳米管为非晶态结构，其形貌可控，且纳米管直径均一，直径约为100nm。LaF3：Eu纳米管中La、F和Eu元素的摩尔比为23．42：72．94：3．64。荧光光谱表明，当Eu3＋掺杂量为6％（摩尔分数）时，LaF3：Eu纳米管阵列荧光强度最强。...

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Bibliographic Details
Published in硅酸盐学报 Vol. 42; no. 3; pp. 335 - 339
Main Author 高雅 邓湘平 徐业平 袁孝友
Format Journal Article
LanguageChinese
Published 2014
Subjects
多孔氧化铝模板
掺铕氟化镧
纳米管阵列
荧光性能
负压抽滤
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ISSN0454-5648

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Summary:在多孔氧化铝模板中，采用负压抽滤法制备了LaF3：Eu纳米管阵列。通过X射线衍射仪、扫描电子显微镜、选区电子衍射和能量色散谱对LaF3：Eu纳米管的晶相结构、形貌、元素组成进行了表征。研究了Eu抖掺杂量对LaF3：Eu纳米管荧光性能的影响。结果表明：制备LaF3：Eu纳米管为非晶态结构，其形貌可控，且纳米管直径均一，直径约为100nm。LaF3：Eu纳米管中La、F和Eu元素的摩尔比为23．42：72．94：3．64。荧光光谱表明，当Eu3＋掺杂量为6％（摩尔分数）时，LaF3：Eu纳米管阵列荧光强度最强。
Bibliography:Key words： porous anodic aluminum oxide template; suction filtering; europium-doped lanthanum fluoride; nanotube arrays;luminescence property
LaFa3 Eu nanotube arrays were fabricated in the porous anodic aluminum oxide template by a suction filtering method at subatmospheric pressure. The phase structure, morphology and chemical composition of the LaF3 ：Eu nanotubes were char- acterized by X-ray diffraction, scanning electron microscopy, selected area electron diffraction and energy dispersive spectrome- try, respectively. The effect of Eu3＋ -doping amount on the luminescence properties of the LaF3 ： Eu nanotube arrays was inves- tigated. The results show that the LaF3 ： Eu nanotube arrays are amorphous with a controllable morphology, and the size of nanotubes is 100 nm. The mole ratio of La, F and Eu in the LaF~ ： Eu nanotubes is 23.42 ： 72.94： 3.64. According to the photo- luminescence spectra, the LaF3 .＇Eu nanotube arrays have the most intensive fluorescence when the optimum doping amount of Eu3＋ is 6% in
ISSN:0454-5648