Modifying the Size and Shape of Monodisperse Bifunctional Alkaline-Earth Fluoride Nanocrystals through Lanthanide Doping
Modifying the Size and Shape of Monodisperse Bifunctional Alkaline-Earth Fluoride Nanocrystals through Lanthanide Doping
复制标题
通过稀土掺杂改变单分散双功能碱土氟化物纳米晶的尺寸和形状
DOI：
10.1021/ja1036429
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发表时间：
2010-07-28
影响因子：
15
通讯作者：
Wang, Yuansheng
中科院分区：
文献类型：
--
作者：
Chen, Daqin;Yu, Yunlong;Wang, Yuansheng
在这篇通讯中，提供了一种简单的方法，通过掺杂稀土元素来改变碱土氟化物纳米相不均匀的尺寸和形状，使其成为单分散的超小纳米球。这些纳米球被发现显示出双功能，即可调的上转换发射以及适当的顺磁性，使它们在生物领域具有潜在的应用前景。这种合成策略包括掺杂与纳米相中阳离子不同价态的杂质，这可能有助于控制一些具有重要技术意义的纳米材料的溶液生长。
In this communication, a simple route for modifying the uneven size and shape of alkaline-earth fluoride nanophases to monodisperse ultrasmall nanospheres through lanthanide doping is offered. These nanospheres are found to exhibit bifunctionality, i.e., tunable upconversion emissions as well as proper paramagnetism, making them potentially applicable in the biological field. The synthesis strategy, which involves doping of an impurity with a different valence than the cation in the nanophase, might be useful for controlling the solution growth of some technologically important nanomaterials.