Controlled synthesis of uniform LaF3 polyhedrons, nanorods and nanoplates using NaOH and ligands
Controlled synthesis of uniform LaF3 polyhedrons, nanorods and nanoplates using NaOH and ligands
复制标题
使用 NaOH 和配体控制合成均匀的 LaF3 多面体、纳米棒和纳米板
DOI：
10.1088/0957-4484/24/14/145604
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发表时间：
2013-04-12
期刊：
影响因子：
3.5
通讯作者：
Xiong, Yujie
中科院分区：
文献类型：
--
作者：
Bao, Longyi;Li, Zhengquan;Xiong, Yujie
本论文发展了一种简便、高效的方法来制备形貌可控的LaF 3纳米晶，包括多面体、纳米棒和纳米片。通过调节NaOH和配体（油酸和十八胺）的量，我们可以精细地定制LaF 3纳米晶体的形状和尺寸。三个制备的LaF 3纳米结构进行了表征，然后通过一系列的控制实验，提出了一种机制的形状控制。基于材料合成的成功，也实现了在衬底上的LaF 3纳米片的受控图案化。Yb/Er或Yb/Tm共掺杂后的LaF 3纳米结构，它们可以作为纳米颗粒的主体基质，提供强大的上转换发光，显示出巨大的潜力，在生物医学应用考虑到它们的小尺寸和良好的形状。
A facile and productive method has been developed to synthesize uniform LaF3 nanocrystals with controllable shapes, including polyhedrons, nanorods and nanoplates. By tuning the amount of NaOH and ligands (oleic acid and octadecylamine), we can finely tailor the shapes and sizes of LaF3 nanocrystals. Three prepared LaF3 nanostructures were well characterized, followed by a series of control experiments to propose a mechanism for the shape control. Based on the success in materials synthesis, controlled patterning of LaF3 nanoplates on substrates has also been achieved. After Yb/Er or Yb/Tm was co-doped in these LaF3 nanostructures, they could serve as nanoparticulate host matrices to give strong upconversion luminescence, showing great potential in biomedical applications considering their small sizes and well-defined shapes.