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Nanosized Heterostructures of Au@Prussian Blue Analogues: Towards Multifunctionality at the Nanoscale
Author(s) -
MaurinPasturel Guillaume,
Long Jérôme,
Guari Yannick,
Godiard Franck,
Willinger MarcGeorg,
Guerin Christian,
Larionova Joulia
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201310443
Subject(s) - prussian blue , materials science , nanotechnology , nanostructure , nanoscopic scale , nanoparticle , heterojunction , polymer , plasmon , colloidal gold , layer (electronics) , layer by layer , chemistry , optoelectronics , electrochemistry , electrode , composite material
Access to multifunctionality at the nanoscale requires the development of hybrid nanostructures that combine materials of different natures. In this line of thought, current research on coordination polymers is not only focusing on their synthesis at the nanoscale, but also on combining these polymers with other materials. According to a novel and rational approach, single‐layer Au@Prussian blue analogue (PBA) and double‐layer Au@PBA@PBA′ core–shell nanoparticles (NPs) may be obtained through the growth of a cyano‐bridged coordination network on the gold surface. The nanosized heterostructures combine the plasmonic optical properties of the gold core and the magnetic properties of the PBA shell. Whereas the single‐layer nanoparticles are paramagnetic, the double‐layer nanostructures display ferromagnetism; therefore, the overall structural motif may be considered as multifunctional. The developed synthetic concept also includes an easy access to hollow PBA NPs.