Solvent dependent shape and magnetic properties of doped ZnO nanostructures
authors Clavel, G; Willinger, MG; Zitoun, D; Pinna, N
nationality International
journal ADVANCED FUNCTIONAL MATERIALS
keywords METAL-OXIDE NANOPARTICLES; ROOM-TEMPERATURE FERROMAGNETISM; ZINC-OXIDE; NONAQUEOUS SYNTHESIS; QUANTUM DOTS; THIN-FILMS; ELECTRONIC-STRUCTURE; EPR-SPECTRA; SEMICONDUCTOR; NANOCRYSTALS
abstract This study reports on a new solution phase synthesis leading to cobalt and manganese doped ZnO which have been theoretically predicted ferromagnetic at room temperature. The solvothermal synthesis involving the reaction of zinc and cobalt acetate or manganese oleate with benzyl alcohol leads to pure inorganic nanoparticles that are diluted magnetic semiconductors. The addition of an inert solvent, that is used in order to control the amount of benzyl alcohol, drastically influences the particles morphology and strongly affects the magnetic behaviors. Cobalt doped particles are paramagnetic or ferromagnetic depending on the synthesis conditions. In order to exclude the formation of secondary phases and/or metal clusters and to understand the role of the solvent on the magnetic properties, the local structure of Co2+ and Mn2+ in the wurtzite ZnO matrix were characterized by XRD, UV-visible diffuse reflectance and electron paramagnetic resonance.
publisher WILEY-V C H VERLAG GMBH
issn 1616-301X
year published 2007
volume 17
issue 16
beginning page 3159
ending page 3169
digital object identifier (doi) 10.1002/adfm.200601142
web of science category Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000250989600018
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journal analysis (jcr 2017):
journal impact factor 13.325
5 year journal impact factor 13.274
category normalized journal impact factor percentile 94.154
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