A5022853785- Luminescence Properties of Advanced Materials
- Glass properties and applications
- Lanthanide and Transition Metal Complexes
- Luminescence and Fluorescent Materials
- Polyoxometalates: Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Inorganic Fluorides and Related Compounds
- Crystal Structures and Properties
- Perovskite Materials and Applications
- Silicone and Siloxane Chemistry
- Layered Double Hydroxides Synthesis and Applications
- Quantum Dots Synthesis And Properties
- X-ray Diffraction in Crystallography
- Solid State Laser Technologies
- Crystallization and Solubility Studies
- Mesoporous Materials and Catalysis
- Nanoplatforms for cancer theranostics
- Photorefractive and Nonlinear Optics
- Radiation Detection and Scintillator Technologies
- Advanced Condensed Matter Physics
- Nuclear materials and radiation effects
- Analytical Chemistry and Sensors
- Polydiacetylene-based materials and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Nanocluster Synthesis and Applications
Université Clermont Auvergne
2015-2024
Institut de Chimie de Clermont-Ferrand
2015-2024
Centre National de la Recherche Scientifique
2014-2024
Clermont Auvergne INP
2024
Materia (United States)
2022
Clermont-Ferrand’s Superior National School of Chemistry
2005-2021
Sigma Clermont
2016-2020
Laboratoire Souterrain à Bas Bruit
2003-2018
Clermont Université
2009-2017
École Nationale Supérieure de Chimie de Montpellier
2015
Self-polarised poly(vinylidene fluoride), (PVDF), films were prepared via a facile phase-inversion technique wherein the polymorphism of was controlled from exclusive α- (>90%) to β-phase (>98%) by simply varying quenching temperature 100 °C -20 °C, respectively. At low temperatures, crystallites found be self-aligned, with PVDF thin possessing high piezoelectric coefficient up -49.6 pm V(-1). The extraordinarily and these make them suitable for electroactive energy harvesting applications.
The influence of the synthesis method on luminescence efficiency orthoborate YBO 3 :Eu 3+ was studied by comparing optical performances samples prepared three routes: solid state reaction (SR), wet process (WP) and sol-gel processing (SG). On basis X-ray powder diffraction, SEM micrographs photoluminescence measurements, SG appears to be most efficient prepare high quality compounds for practical applications. Such a conclusion is reinforced existence an important gain in using this procedure.
Luminescent Y3Al5O12 : Eu3+ (YAG Eu3+) and Tb3+ Tb3+) powders with nanometre micrometre-sized particles films have been successfully synthesized by sol–gel route from alkoxide precursors. Advanced YAG coatings were achieved spray dip-coating methods, giving rise to different structural optical properties. High temperature x-ray diffraction, powder scanning electron microscopy atomic force used investigate the materials structure morphology. Pure polycrystalline was obtained 900°C. Laser...
Abstract Barium titanate nanocrystallites were synthesized by a hydrothermal technique from barium chloride and tetrabutyl titanate. Single-crystalline cubic perovskite BaTiO 3 consisting of spherical particles with diameters ranging 10 to 30 nm was easily achieved this route. In order study the influence synthesis process on morphology optical properties, also prepared solid-state reaction. case, only tetragonal phase which crystallizes above 900° observed. High-temperature X-ray...
Several phosphors without rare-earth elements were synthesized by a simple and practical method.
The utilization of InP-based quantum dots (QDs) as alternative luminescent nanoparticles to cadmium-based QDs is actively pursued. However, leveraging their luminescence for solid-state applications presents challenges due the sensitivity InP oxidation and aggregation-caused quenching. Hence, an appealing strategy protect disperse within hybrid materials. Metal–organic frameworks (MOFs) offer a promising solution readily available crystalline porous Among these, MOF-5 (composed {Zn4O}6+...
Transparent BaTiO3:Eu3+ films were prepared via a sol-gel method and dip-coating technique, using barium acetate, titanium butoxide, polyvinylpyrrolidone (PVP) as modifier viscosity. ~500 nm thick, crystallized after thermal treatment at 700 ºC. The powders revealed spherical rod shape morphology. optical quality of showed predominant band 615 under 250 excitation. A preliminary luminescent test provided the properties Eu3+ doped BaTiO3.
4-Triazolyl-dipicolinic acids, prepared efficiently by CuAAC, proved to act as efficient antennae for optical lanthanide probes containing Eu3+ or Tb3+, under linear and non excitations (one, two three photons provided laser induced luminescence). The versatility offered the substitution of triazole subunit is, in addition, useful covalent linkage slide glass providing luminescent films.
Azo dyes are widely used in industries and their release the environment contributes to pollution of effluents. The authors aim develop a new eco-friendly water treatment method for degradation azo based on situ magnetic separation immobilisation bacterial cells. was achieved using superparamagnetic Fe3O4 nanoparticles offers possibility reusing bacteria by several cycles. iron-oxide were synthesised reverse co-precipitation. Gram-positive Bacillus subtilis immobilised adsorption then...
Fluorescein–silica nanoparticles as hybrid dyes were prepared by a reverse microemulsion method.
The sol−gel process has proven to be a convenient route produce inorganic oxide materials with various shapes. We report here the use of this technique prepare for first time our knowledge high-quality powders and spray-coated films LiYF4. Powdered samples were structurally as well morphologically characterized by means conventional solid-state techniques. Furthermore, optical properties investigated europium ions luminescent probe. X-ray diffraction measurements enabled identification...
Over the last decade, upconversion nanoparticles (UCNP) have been widely investigated in nanomedicine due to their high potential as imaging agents near-infrared (NIR) optical window of biological tissues. Here, we successfully develop active targeted UCNP probes for dual NIR-NIR fluorescence and radioactive-guided surgery prostate-specific membrane antigen (PSMA)(+) prostate cancers. We designed a one-pot thermolysis synthesis method obtain oleic acid-coated spherical NaYF4:Yb,Tm@NaYF4...
Abstract The architecture of Zn‐Al layered double hydroxides (LDHs), organo‐modified with bola‐amphiphiles molecules, is matching its interlayer space to the size narrow‐band red‐emitting InP/ZnS core–shell quantum dots (QDs) form original high‐performance functional organic–inorganic QD‐bola‐LDH hybrids. success size‐matching (SMIS) approach confirmed by X‐ray diffraction, small angle scattering (SAXS), TEM, STEM‐HAADF, and photoluminescence investigations. QD‐Bola‐LDH hybrid exhibits a...