Bifunctional Nanocomposites with Magnetic and Luminescence Properties
Bifunctional Nanocomposites with Magnetic and Luminescence Properties
复制标题
DOI：
10.1002/adma.201001743
复制
发表时间：
2010-10
影响因子：
29.4
通讯作者：
D. Vollath
中科院分区：
文献类型：
--
作者：
D. Vollath
许多应用需要纳米颗粒表现出高磁矩和发光。不存在表现出这种性质组合的化合物。然而，这种性质的组合可以通过纳米复合材料获得。这些复合材料有两种可能的结构：核-壳设计，导致最小的复合颗粒，以及含有具有所述性质的分离颗粒的团聚体。在大多数情况下，磁芯是磁赤铁矿或磁铁矿，而发光载体是有机分子或无机量子点。设计这种复合材料的基本问题之一是磁芯和发光体之间的潜在不兼容性，这一问题需要通过适当的布局选择来克服。这些问题的实验实现的解决方案。
Many applications require nanoparticles that exhibit high magnetic moment and luminescence. Compounds exhibiting this combination of properties do not exist. However, this combination of properties may be obtained by nanocomposites. There are two possible configurations for these composites: the core–shell design, leading to the smallest composite particles, and agglomerates containing separated particles with the properties in question. The magnetic core is, in most cases, maghemite or magnetite, whereas the luminescence carrier is either an organic molecule or an inorganic quantum dot. One of the basic problems in designing such composites, to be overcome by the appropriate layout choice, is the potential incompatibility between the magnetic core and the lumophore. Experimentally realized solutions of these problems are presented.