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首页> 外文期刊>Nanotechnology >An ionic liquid based synthesis method for uniform luminescent lanthanide fluoride nanoparticles
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An ionic liquid based synthesis method for uniform luminescent lanthanide fluoride nanoparticles

机译：基于离子液体的均匀发光氟化镧氟化物纳米粒子的合成方法

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摘要

We describe a facile procedure for the synthesis of uniform lanthanide fluoride nanophosphors by homogeneous precipitation in ethylene glycol solutions containing lanthanide precursors and an ionic liquid (1-butyl, 2-methylimidazolium tetrafluoroborate). It is shown that the use of this ionic liquid as a fluoride source, an appropriate choice of the solvent and the lanthanide precursor, and the adjustment of reaction temperature, are essential to obtain uniform nanoparticles. This method is applied to the preparation of pure YF_3, EuF_3 and TbF_3 nanoparticles as well as of Eu-doped YF_3 and Tb-doped YF_3. In most cases, highly uniform nanoparticles were obtained, the size of which could be tuned in the nanometer range by adjusting the nature and concentration of the starting lanthanide precursor. The luminescent properties of the synthesized materials are also evaluated.
机译：我们描述了一种通过在含有镧系元素前体和离子液体（1-丁基，2-甲基咪唑四氟硼酸酯）的乙二醇溶液中均匀沉淀来合成均匀的镧系元素氟化物纳米荧光体的简便方法。结果表明，使用这种离子液体作为氟化物源，适当选择溶剂和镧系元素前体以及调节反应温度对于获得均匀的纳米粒子至关重要。该方法可用于制备纯YF_3，EuF_3和TbF_3纳米颗粒以及Eu掺杂的YF_3和Tb掺杂的YF_3。在大多数情况下，可以获得高度均匀的纳米粒子，可以通过调节起始镧系元素前体的性质和浓度在纳米范围内调整纳米粒子的尺寸。还评估了合成材料的发光性质。

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