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Water‐in‐Oil Microemulsion Preparation and Characterization of Cs 2 [Mo 6 X 14 ]@SiO 2 Phosphor Nanoparticles Based on Transition Metal Clusters (X = Cl, Br, and I)
Author(s) -
Grasset F.,
Dorson F.,
Cordier S.,
Molard Y.,
Perrin C.,
Marie A.M.,
Sasaki T.,
Haneda H.,
Bando Y.,
Mortier M.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701686
Subject(s) - microemulsion , phosphor , characterization (materials science) , nanoparticle , materials science , transition metal , chemical engineering , analytical chemistry (journal) , mineralogy , nanotechnology , pulmonary surfactant , chemistry , chromatography , catalysis , optoelectronics , organic chemistry , engineering
Monodisperse Cs 2 Mo 6 X 14 @SiO 2 (X = Cl, Br, I) luminescent nanoparticles are synthesized by a water‐in‐oil microemulsion technique. They emit in the red and near‐infrared window (600–900 nm), a region of interest for bio‐imaging technologies. Microscopy studies (SEM, TEM and HAADF‐STEM, see figure) show a good dispersion of the [Mo 6 X 14 ] 2– anions within the @SiO 2 nanoparticles and that the nanoparticles are homogeneous with a regular spherical shape of 45 nm diameter.