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Engineered Au Core@Prussian Blue Analogous Shell Nanoheterostructures: Their Magnetic and Optical Properties

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons22243

Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Zitation

Maurin‐Pasturel, G., Long, J., Palacios, M. A., Guérin, C., Charnay, C., Willinger, M. G., et al. (2017). Engineered Au Core@Prussian Blue Analogous Shell Nanoheterostructures: Their Magnetic and Optical Properties. Chemistry – A European Journal, 23(31), 7483-7496. doi:10.1002/chem.201605903.


Zitierlink: http://hdl.handle.net/21.11116/0000-0001-5F24-D
Zusammenfassung
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@KNiII[FeII(CN)6] core@shell and Au@KNiII[FeII(CN)6]@KNiII[CrIII(CN)6] 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.