Magnetic Langmuir−Blodgett Films of Bimetallic Coordination Nanoparticles of Cs0.4Ni[Cr(CN)6]0.9

Autor:	Diego Repetto, Talal Mallah, Eugenio Coronado, Angel López-Muñoz, Daniela Brinzei, Christophe Mingotaud, Laure Catala, Miguel Clemente-León
Rok vydání:	2008
Předmět:	Prussian blue Brewster's angle Materials science General Chemical Engineering Inorganic chemistry Nanoparticle General Chemistry Langmuir–Blodgett film chemistry.chemical_compound symbols.namesake Crystallography Adsorption chemistry Bromide Monolayer Materials Chemistry symbols Bimetallic strip
Zdroj:	Chemistry of Materials. 20:4642-4652
ISSN:	1520-5002 0897-4756
DOI:	10.1021/cm8006765
Popis:	Magnetic Langmuir−Blodgett (LB) films of bimetallic coordination nanoparticles of the Prussian blue analogue Cs0.4Ni[Cr(CN)6]0.9 were prepared by using the adsorption properties of a monolayer of dioctadecyldimethylammonium bromide (DODA). The molecular organization of the DODA monolayer is strongly affected by the presence of the water-dispersable Cs0.4Ni[Cr(CN)6]0.9 nanoparticles in the subphase as has been shown by π−A isotherms and Brewster angle microscopy (BAM) images at the air−water interface. BAM images suggest that a layer of inorganic nanoparticles is adsorbed under the monolayer of DODA, for high surface pressure and medium concentration of nanoparticles in the subphase and for all surface pressures at high concentrations of nanoparticles. Transfer of the monolayer onto different substrates allowed the preparation of multilayers containing Cs0.4Ni[Cr(CN)6]0.9 nanoparticles. Magnetic properties of these LB films show a spin-glass-like behavior that can be explained by the strong magnetic dipola...
Databáze:	OpenAIRE
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