A5064603131- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Heat Transfer
- Fluid Dynamics Simulations and Interactions
- Pickering emulsions and particle stabilization
- Electrochemical Analysis and Applications
- Minerals Flotation and Separation Techniques
- Spectroscopy and Quantum Chemical Studies
- Force Microscopy Techniques and Applications
- Fluid Dynamics and Mixing
- Fuel Cells and Related Materials
- Thermal Radiation and Cooling Technologies
- Adhesion, Friction, and Surface Interactions
- Energy Harvesting in Wireless Networks
- Solar-Powered Water Purification Methods
- Surfactants and Colloidal Systems
- Plant Surface Properties and Treatments
- Nanopore and Nanochannel Transport Studies
- Solar Thermal and Photovoltaic Systems
Institut Lumière Matière
2024
Kyung Hee University
2019-2024
Université Claude Bernard Lyon 1
2022-2024
Centre National de la Recherche Scientifique
2024
When a water drop impinges on flat superhydrophobic surface, it bounces off the surface after certain dwelling time, which is determined by Rayleigh inertial-capillary timescale. Recent works have demonstrated that this time (i.e., contact time) modified curved surfaces, as asymmetrically spreads over surface. However, surfaces still remains poorly understood, while no successful physical model for has been proposed. Here, we propose asymmetric spreading driven either Coanda effect or...
This study introduces a facile method for fabricating hydrophilic 3D-network hydrogels, integrating plasmonic gold nanoparticles to boost solar absorption, enhancing evaporation rates and efficiency 1.6 kg m −2 h −1 77%, respectively.
We report the synthesis of a functional molecule, quatertiophene-based surfactant, which can both adsorb at water / gas interface (surface active molecule) and aggregate through pi-pi stacking interactions....
Here, we study the water penetration dynamics through a Janus membrane with opposite wettability, i.e., (super-) hydrophobic on one side and hydrophilic other side, during drop impact. It is demonstrated that consists of two temporally distinct events: dynamic pressure driven shorter timescale capillary longer timescale. For under pressure, threshold velocity for dependent wettability impact such smaller required when impinged onto superhydrophobic over superhydrophilic side. We demonstrate...
The engineering of conjugated oligo- and polymers at the micro- nanoscale is crucial for developing advanced functional materials electronic devices, such as OFETs, OLEDs, sensors, due to their optoelectronic properties being highly dependent on supramolecular order. This research investigates self-assembly aggregation behavior a series amphiphilic oligothiophenes with varying hydrophilic/hydrophobic balances, synthesized through palladium-catalyzed cross-coupling reactions. molecular...
We report the synthesis of a new functional molecule, quater-tiophene based surfactant, which can both adsorb at water / gas interface (surface active molecule) and aggregates through pi-pi stacking interactions. assess then ability this molecule to create these functionalities interfaces. This interfacial aggregation, characterized here in situ for first time, is probed thanks Langmuir trough experiments spectrometric ellipsometry. These results open some routes design opto-electronic devices.
While perfectly water-repellent surfaces, such as superhydrophobic always repel water drops after contact, the can either stick to or bounce off lubricant-impregnated surfaces (LISs) depending on impact conditions. This study investigates rebound behavior of LIS, highlighting how this phenomenon significantly depends both viscosity lubricant and obliqueness surface. Both surface contribute an increase in dissipation: directly increases viscous force, increased causes drop slide a liquid,...