A5001510515- Solid-state spectroscopy and crystallography
- Glass properties and applications
- Crystal Structures and Properties
- Inorganic Fluorides and Related Compounds
- Luminescence Properties of Advanced Materials
- Phase-change materials and chalcogenides
- Nonlinear Optical Materials Research
- Crystallography and molecular interactions
- Photorefractive and Nonlinear Optics
- Nonlinear Optical Materials Studies
- Diamond and Carbon-based Materials Research
- Carbon Nanotubes in Composites
- Laser Material Processing Techniques
- Perovskite Materials and Applications
- Chemical Thermodynamics and Molecular Structure
- Graphene research and applications
- Spectroscopy and Quantum Chemical Studies
- Molecular spectroscopy and chirality
- Thermodynamic properties of mixtures
- Molecular Spectroscopy and Structure
- X-ray Diffraction in Crystallography
- Pigment Synthesis and Properties
- Microwave Dielectric Ceramics Synthesis
- Crystal structures of chemical compounds
- Mineralogy and Gemology Studies
Institut des Sciences Moléculaires
2010-2023
Université de Bordeaux
2008-2019
Centre National de la Recherche Scientifique
2009-2019
Université Claude Bernard Lyon 1
2013
University of Hassan II Casablanca
1993-2013
Laboratoire de Chimie Moléculaire
1996-2008
Institut de Chimie de la Matière Condensée de Bordeaux
2004-2007
University of Arizona
2006
Paul Pascal Research Center
2006
Institut de Chimie
2004
Carbon-based nanomaterials have emerged as a subject of enormous scientific attention due to their outstanding mechanical, electrical and thermal properties. Incorporated in polymeric matrix, they are expected significantly improve physical properties the host medium at extremely small filler content. In this work, we report characterization various carbonaceous materials by Raman spectroscopy that has become key technique for analysis different types sp2 nanostructures, including...
Abstract Silicon–carbon composites consisting of Si particles embedded in a dense and non‐porous carbon matrix are prepared by the pyrolysis intimate mixtures poly(vinyl chloride) (PVC) powder at 900 °C under flow N 2 . In contrast to bare micrometer‐sized (1–10 μm) nanometer‐sized (10–100 nm) powders, which show poor cycling behavior with almost no capacity remaining after 15 cycles, texture composite is seen greatly enhance reversibility alloying reaction Li. For instance, ca. 1000 mA h g...
In this study we report the physical properties and spontaneous Raman scattering spectra of nine oxide tellurite fluorotellurite glasses from three glass systems—sodium–zinc–tellurite (TZN), tungsten–tellurite, fluorotellurite. gain surface damage threshold at 1064 nm are also shown for a selection these glasses, which all exhibited high resistance. were directly measured accurately calculated selected TZN after Fresnel, internal solid angle, Bose–Einstein corrections. The showed good fits...
The low frequency Raman spectrum of single crystals NH4 Cl, Br, and I has been measured in disordered phases II. Particular attention paid to the polarization selection rules. temperature dependence intensity disorder induced on entering ordered phase III or IV also measured. data for II Cl were interpreted by performing a calculation spectrum, based theory Loveluck Sokoloff scattering from phonons system, using lattice dynamical calculations performed Teh. Excellent agreement is obtained...
In carbon nanotubes and nanofilaments, the surface properties play a fundamental role for any use or application. It is therefore necessary to know control their characteristics, which are dependent on fabrication process treatments. this work, two selected series of multiwalled thermal treatment and/or controlled oxidation, using nitric acid solutions, have been carried out. The structural changes due these treatments followed by means different approaches: first, solid-state chemistry...
Photostructural defects resulting from exposure to intense near-infrared femtosecond radiation is studied in three $a\text{\ensuremath{-}}\mathrm{Si}{\mathrm{O}}_{2}$ glasses with different impurity levels. The photoinduced are by UV absorption spectroscopy and correlated the structural modifications glass matrix through Raman spectroscopy. Information dynamics of defect generation revealed small photon energy IR laser radiation.