Magnetic and Fluorescent Hybrid Silica Nanoparticles Based on the Co-Encapsulation of γ-Fe₂O₃ Nanocristals and [Mo₆Br₁₄]^2- Luminescent Nanosized Clusters by Water-in-Oil Microemulsion

Chrystelle Neaime (1) , Nicolas Nerambourg (1, 2) , Tangi Aubert (1) , Fabien Grasset (1) , Stéphane Cordier (1) , Patrick Gredin (3) , Michel Mortier (4)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 SRSMC - Structure et Réactivité des Systèmes Moléculaires Complexes
3 LCMCP (site Paris VI) - Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI)
4 IRCP - Institut de Recherche de Chimie Paris

The design, synthesis and characterization of magnetic-luminescent nanoparticles is now more and more studied since the last decade. However, optimizing the design of such materials requires a deep understanding of their physico-chemical properties. In this paper are reported extended investigations on luminescent and magnetic [Mo6Br14-γ-Fe2O3]@SiO2 nanoparticles prepared by a colloid-water-in-oil microemulsion technique. The Cs2[Mo6Br14] cluster compound is used as red-NIR phosphor and is prepared by solid state chemistry. We bring here new insights into the structure of such Nps and its interplay with their optical or magnetic properties.

Keywords: nanotechnology; clusters; magnetic core; superparamagnetic; luminescent; microemulsion.; microemulsion

Domains: Inorganic chemistry

Chrystelle Neaime, Nicolas Nerambourg, Tangi Aubert, Fabien Grasset, Stéphane Cordier, et al.. Magnetic and Fluorescent Hybrid Silica Nanoparticles Based on the Co-Encapsulation of γ-Fe₂O₃ Nanocristals and [Mo₆Br₁₄]^2- Luminescent Nanosized Clusters by Water-in-Oil Microemulsion. Key Engineering Materials, 2014, 617, pp.174-178. ⟨10.4028/www.scientific.net/KEM.617.174⟩. ⟨hal-01069251⟩