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Pure and cobalt-doped zinc oxide aligned nanorods have been grown by the low-temperature (90 °C) aqueous chemical method on amorphous ZnO seed layer, deposited on a sapphire substrate. High crystallinity of these objects is demonstrated by the electron paramagnetic resonance investigation at liquid helium temperature. The successful incorporation of Co2+ ions in substitution of Zn2+ ones in the ZnO matrix has also been confirmed. A drastic reduction of intrinsic ZnO nanorods core defects is observed in the Co-doped samples, which enhances the structural quality of the NRs. The quantification of substitutional Co2+ ions in the ZnO matrix is achieved by comparison with a reference sample. The findings in this study indicate the potential of using the low-temperature aqueous chemical approach for synthesizing material for spintronics applications. [...]
> lire la suite de "EPR investigation of pure and Co-doped ZnO oriented nanocrystals"
Nanotechnology, overview article, 14 December 2016
We present a review of recent in situ experimentation studies of solidification front patterns and microstructures in alloys. Front-tracking diagnostics and real-time observation methods using high-resolution optical or X-ray imaging devices currently apply to model transparent systems as well as metallic alloys in thin and bulk samples. On a theoretical basis that spans the physics of nonequilibrium pattern formation and materials science, in combination with time-resolved numerical simulations, conclusive results of both fundamental- and applied-science interest have been obtained on major problems relative to multiscale microstructure selection, morphological transitions, and crystallographic effects during single- and multi-phase solidification. [...]
> lire la suite de "In situ observation of solidification patterns in diffusive conditions"
Acta Materiala, overview article, 15 April 2016
We report the fabrication of Si-based dielectric Mie resonators via a low cost process based on solid-state dewetting of ultra-thin amorphous Si on SiO2. We investigate the dewetting dynamics of a few nanometer sized layers annealed at high temperature to form submicrometric Si-particles. Morphological and structural characterization reveal the polycrystalline nature of the semiconductor matrix as well as rather irregular morphologies of the dewetted islands.[...]
> lire la suite de "Fabrication of poly-crystalline Si-based Mie resonators via amorphous Si on SiO2 dewetting"
Nanoscale, 8, 2844, 2016



Reliability of Solar materials & Systems
Villa Méditerranée, Marseille, France, May 12th 2017

Conference on Advancements in Nuclear Instrumentation Measurements Methods and their Applications
Palais des Congres, Liège, Belgium June 19th to 23rd 2017

Ecole thématique du GDR CNRS Oxyfun
Caractérisations avancées des oxydes fonctionnels

Carry-le-Rouet, France, 25-30 septembre 2016

EDS 2016 18th International Conference on Extended Defects in Semiconductors
Les Issambres-St Aygulf, south of France, September 25-29, 2016

LaMoDy.1 School on Lattice and Molecular Dynamics Simulations of Materials
Girona, Spain, 19-23 september 2016

Conférence Nationale sur les Processus ULtimes d’épitaxie des SEmiconducteurs
Marseille, 18 - 22 juillet 2016

Ecole Franco-Marocaine de la Mesure et de l'Instrumentation Nucléaires EFMMIN4
Marseille, 18 au 21 juillet 2016

AFC 2016 - Congrès de l'Association Française de Cristallographie
Marseille, 4-7 juillet 2016

6th International Conference on NANOstructures and nanomaterials SElf-Assembly (NANOSEA)
Giardini Naxos (Me, Italy), July 3-8, 2016

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IM2NP - Unité Mixte de Recherche 7334 CNRS & Universités d'Aix-Marseille et de Toulon | adresse administrative : Faculté des Sciences Avenue Escadrille Normandie Niemen - Case 142 - 13397 Marseille Cedex 20 (France) | Directeur : R. Bouchakour | email : | tel. +33 (0) 4 91 28 83 13

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