A5027274406- Nanomaterials and Printing Technologies
- Fluid Dynamics and Thin Films
- Nanofabrication and Lithography Techniques
- TiO2 Photocatalysis and Solar Cells
- Electrohydrodynamics and Fluid Dynamics
- Photonic Crystals and Applications
- Advanced Photocatalysis Techniques
- Optical Coatings and Gratings
- Force Microscopy Techniques and Applications
- Photonic and Optical Devices
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Metamaterials and Metasurfaces Applications
- Electronic and Structural Properties of Oxides
- Surface Modification and Superhydrophobicity
- Carbon Nanotubes in Composites
- Advancements in Photolithography Techniques
- Heat Transfer and Boiling Studies
- Conducting polymers and applications
- Acoustic Wave Resonator Technologies
- Quantum Dots Synthesis And Properties
- Silicone and Siloxane Chemistry
- Mesoporous Materials and Catalysis
- Solidification and crystal growth phenomena
- Block Copolymer Self-Assembly
Aix-Marseille Université
2016-2021
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence
2016-2021
Centre National de la Recherche Scientifique
2016-2021
Université de Toulon
2017-2021
University of Oxford
2020
Oxfam
2020
Centrale Marseille
2018
Cegep de Saint Jerome
2017
Université Paris-Saclay
2017
CEA Paris-Saclay
2017
Si-based nanoarchitectures are formed with unprecedented precision and reproducibility via templated dewetting of thin SOI.
We review past and recent progress in nanoimprint lithography (NIL) methods to (nano-) structure inorganic materials from sol–gel liquid formulations colloidal suspensions onto a surface. This technique, first inspired by embossing techniques, was developed for soft polymer processing, as final or intermediate materials, but is today fully adapted hard with high dielectric constant, such metal oxides, countless chemical compositions provided the chemistry. Consequently, NIL has become...
Abstract Dielectric Mie resonators are taking momentum in the last years thanks to their peculiar properties light management at visible and near‐infrared frequencies. However, full exploitation demands for cheap materials versatile fabrication methods, extendible over large surfaces potentially C‐MOS compatible. Here, a sol–gel deposition nanoimprint lithography method is used obtain titania‐based areas (several square millimeters), showing that this platform can be exploited with different...
Fabrication and scaling of disordered hyperuniform materials remain hampered by the difficulties in controlling spontaneous phenomena leading to this novel kind exotic arrangement objects. Here, we demonstrate a hybrid top-down/bottom-up approach based on sol–gel dip-coating nanoimprint lithography for faithful reproduction metasurfaces metal oxides. Nano- microstructures made silica titania can be directly printed over several cm2 glass silicon substrates. First, describe polymer mold...
Optical technologies and devices rely on the controlled manipulation of light propagation through a medium. This is generally governed by inherent effective refractive index material as well its structure dimensionality. Although precise control over with sub‐wavelength size objects crucial issue for plethora applications, widely used fabrication methods remain cumbersome expensive. Here, sol–gel dip‐coating method combined nanoimprinting lithography arbitrary glass silicon substrates...
Metal oxide (MOX) surface nanopatterns can be prepared using Soft-Nano-Imprint-Lithography (soft-NIL) combined with sol-gel deposition processing. Even if layers remain gel-like straight after deposition, their accurate replication from a mould remains difficult as result of the fast evaporation-induced stiffening that prevents efficient mass transfer underneath soft mould. The present work reports detailed investigation role xerogel layer conditioning (temperature and relative humidity)...
In the framework of photonics with all-dielectric nanoantennas, sub-micro-metric spheres can be exploited for a plethora applications including vanishing back-scattering, enhanced directivity light emitter, beam steering, and large Purcell factors. Here, potential high-throughput fabrication method based on aerosol-spray is shown to form quasi-perfect sub-micrometric polycrystalline TiO 2 . Spectroscopic investigation scattering from individual particles reveals sharp resonances in agreement...
Dip-coating is one of the most convenient methods used in laboratory and industry to deposit a solid layer onto surface with controlled thickness from chemical solution. The present Article investigates influence withdrawal speed on film homogeneity respect dipping angle ranging 90° (conventional vertical configuration) 1° (quasi-horizontal configuration). Several advantages were found latter extreme low-dipping conditions that are (i) an available wider range thickness, (ii) elimination...
Abstract The amazing properties of 2D materials are envisioned to revolutionize several domains such as flexible electronics, electrocatalysis, or biosensing. Herein we introduce scanning electrochemical microscopy (SECM) a tool investigate molybdenum disulfide in straightforward fashion, providing localized information regarding the electronic transport within chemical vapor deposition (CVD)‐grown crystalline MoS 2 single layers having micrometric sizes. Our investigations show that flakes...
Synthesizing mesoporous TiO2 films with tunable crystallized content, using rapid and facile hydrolytic sol–gel routes, is of interest for developing optical photocatalytic applications on different substrates. Here, the crystallinity porosity fine-tuned, starting from low annealing temperatures. We further investigate role crystal seeds in temperature-induced crystalline phase changes thin by Raman spectroscopy, which interpreted framework a phonon quantum confinement model. The presence...
Precise organization of metallic and semiconducting particles small dimensionality over large scales is a challenging requirement at the basis many photonic, electronic, catalytic devices. Here, we demonstrate new approach, all based on self-assembly, for ordering 2D arrays nanodots several cm2 sized, crystalline silicon wafers. Via block copolymer-micelles-assisted sol–gel deposition TiO2 Si thermal annealing, prepare substrates with inorganic nanopatterns featuring hexagonally positioned...
We created a blend between TiO2 sponge with bimodal porosity and Methyl-Ammonium Lead Iodide (MAPbI3) perovskite. The interpenetration of the two materials is effective thanks to peculiar structure. During early stages growth sponge, formation 5-10 nm-large auto-seeds observed which set micro-porosity (<5 nm) layer, maintained during further growth. In second stage, aggregate into hundreds-of-nm-large meso-structures by their mutual shadowing grazing Ti flux for local oxidation. This process...
Nanostructured materials represent a breakthrough in many fields of application. Above all for sensing, the use nanostructures with high surface/volume ratio is strategic to raise sensitivity towards dangerous environmental gas species. A new Dc-Reactive sputtering Deposition method has been applied grow highly porous p-type nitrogen-doped titanium oxide layers by modifying previously developed reactive called gig-lox. The doping films was achieved at room temperature progressive...
Carbon nanotube columns are ideal simple scaffolds to develop various flow systems.