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Interactions in fluorescent-magnetic heterodimer nanocomposites

机译:荧光磁性异二聚体纳米复合物中的相互作用

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A new bifunctional nanocomposite, consisting of CdTe quantum dots complexed with FeP nanoparticles, was synthesized using a one-pot, high temperature precursor decomposition method. Nanocomposites formed consisted of heterofunctional, dumbbell shaped particles, which exhibited supplementary and altered properties from those of constituent particles. For example, an additional peak was observed in the PL spectra, whose intensity was directly related to the ratio of FeP:CdTe. Also, the magnetic behavior of the particles altered from ferromagnetic to paramagnetic upon conjugation to CdTe. These results indicate that interactions between monomers in multifunctional particles can occur, which might result from the formation of a composite ‘doped’ phase at the interface of the individual particles. These interactions may lead to additional properties that could be exploited to increase the utility of the resultant particles.
机译:一种新型的双功能纳米复合材料,由CdTe量子点与FeP纳米粒子复合而成,是使用一锅高温前体分解方法合成的。形成的纳米复合材料由异功能的哑铃状颗粒组成,这些颗粒表现出与组成颗粒不同的补充和改变的特性。例如,在PL光谱中观察到另一个峰,其强度与FeP:CdTe的比例直接相关。而且,当与CdTe结合时,颗粒的磁行为从铁磁变为顺磁。这些结果表明,多功能颗粒中的单体之间可能发生相互作用,这可能是由于在单个颗粒界面处形成了复合“掺杂”相而引起的。这些相互作用可能导致可用于增加所得颗粒的效用的其他性质。

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