Maurin-Pasturel Guillaume, Long Jérôme, Palacios Maria A, Guérin Christian, Charnay Clarence, Willinger Marc-Georg, Trifonov Alexander A, Larionova Joulia, Guari Yannick
ICGM (UMR5253), Univ. Montpellier, CNRS, ENSCM, Université de Montpellier, Site Triolet, Place E. Bataillon, 34095, Montpellier Cedex 5, France.
Fritz Haber Institute of the Max Planck Society, Department of Inorganic Chemistry, Faradayweg 4-6, 14195, Berlin, Germany.
Chemistry. 2017 Jun 1;23(31):7483-7496. doi: 10.1002/chem.201605903. Epub 2017 Mar 30.
We report a new approach for the synthesis of multifunctional Au core@Prussian Blue analogous (PBA) shell nanoheterostructures that involves PBA shell growth on the surface of cyanide-stabilized gold nanoparticles. It permits the assembly of Au@KNi [Fe (CN) ] core@shell and Au@KNi [Fe (CN) ]@KNi [Cr (CN) ] core@shell@shell heterostructures with well-defined and size-controlled gold cores and PBA shells. These heterostructures exhibit tunable size- and shape-dependent magnetic and optical properties: (i) the surface plasmon resonance band position and intensity mainly depend on the PBA shell thickness, and (ii) the magnetic properties (the transition temperature, the coercivity, and magnetic regime) depend in a complex manner on the thickness as well as the particular morphology of the magnetic shell.
我们报道了一种合成多功能金核@普鲁士蓝类似物（PBA）壳层纳米异质结构的新方法，该方法涉及在氰化物稳定的金纳米颗粒表面生长PBA壳层。它能够组装具有明确且尺寸可控的金核和PBA壳层的Au@KNi[Fe(CN)]核壳以及Au@KNi[Fe(CN)]@KNi[Cr(CN)]核壳@壳层异质结构。这些异质结构展现出可调谐的尺寸和形状依赖性磁学和光学性质：（i）表面等离子体共振带的位置和强度主要取决于PBA壳层的厚度，并且（ii）磁学性质（转变温度、矫顽力和磁区）以复杂的方式取决于磁壳层的厚度以及特定形态。
