A5051552095- Nonlinear Optical Materials Studies
- Nonlinear Optical Materials Research
- Semiconductor materials and devices
- Porphyrin and Phthalocyanine Chemistry
- Material Dynamics and Properties
- Phase Equilibria and Thermodynamics
- Protein Interaction Studies and Fluorescence Analysis
- Polymer Nanocomposites and Properties
- Semiconductor materials and interfaces
- Spectroscopy and Quantum Chemical Studies
- Dielectric materials and actuators
- High voltage insulation and dielectric phenomena
- Organic and Molecular Conductors Research
- Synthesis and Characterization of Heterocyclic Compounds
- Organic Electronics and Photovoltaics
- Chemical Synthesis and Reactions
- IoT-based Smart Home Systems
- Theoretical and Computational Physics
- Nanotechnology research and applications
- Luminescence and Fluorescent Materials
- Silicon Nanostructures and Photoluminescence
- ZnO doping and properties
- nanoparticles nucleation surface interactions
- Diamond and Carbon-based Materials Research
- Synthesis of Tetrazole Derivatives
National Centre of Scientific Research "Demokritos"
2018-2023
Institut des Sciences et Technologies Moléculaires d'Angers
2014-2016
Université d'Angers
2013-2016
Centre National de la Recherche Scientifique
2013-2016
University of Patras
2012-2015
Université Nantes Angers Le Mans
2014
Optical and nonlinear optical properties of benzodifuran-based derivatives obtained by a green approach were studied.
The evolution of the micro-segregated structure aqueous methanol mixtures, in temperature range 300 K-120 K, is studied with computer simulations, from static structural point view. heterogeneity water reinforced at lower temperatures, as witnessed by a pre-peak oxygen-oxygen factor. Water tends to form predominantly chain-like clusters temperatures and smaller concentrations. Methanol domains have essentially same cluster pure liquid high concentrations becomes monomeric ones. Concentration...
The influence of interfacial oxidized Ge layer, inadvertently grown during ALD Al2O3 films, on the properties Al2O3/p-Ge MOS structures is studied. Keeping constant deposition temperature at 300°C, it shown that thickness layer increases from ∼0.2 to ∼0.5 nm, as 5 10 maintaining a composition either mixed Ge4+/Ge3+ oxide or GeAlOx germanate. However, for 25 nm decreases below 0.1 nm. density interface traps shows strong dependence regardless thickness.
A desired property of an autonomous system is the capability to operate and survive in unforeseen conditions. Wireless IoT (formerly Sensor Network) applications, pose a series limitations regarding embedded system's power consumption energy autonomy. The PERPS project proposes innovative approach harvesting systems, aiming perpetual operation WSN nodes portable electronics. state-of-the-art conversion integrated circuit (ENC IC), with real-time S/W algorithms implemented, allow predictive...
Organic nonlinear optical materials are widely investigated for fabricating optoelectronic devices. Particularly organic π-conjugated systems as well transition metal complex compounds studied in this direction because of the strong electronic coupling between ligand and metal, their excellent chemical stability, rich photochemical photophysical properties. In work, comparative studies third-order susceptibilities a bipyridine (4-(N,N-dibutylamino)-4′-(5-ethynyl-2,2′-bipyridine)-azobenzene...
Abstract The electrical behaviour of Al/Al 2 O 3 /p‐Ge MOS capacitors, with 10 nm oxide thickness, has been studied in the temperature range between 130 K and 330 K. ALD method for Al deposition used. C‐V G‐f measurements reveal high values density interfacial traps D it , suggesting presence leakage currents. Conductivity mechanisms currents have studied, on basis J‐V characteristics structure as a function temperature. In measured voltage region (0‐2.5 V), tunneling is proposed dominant...
We review the effect of water anomalies on properties low temperature water. When supercooled, liquids dynamical change drastically. Supercooled undergo an at least exponential decrease their diffusion coefficient when decreases while structure merely does not change. discuss how that still unexplained temperatures affect differently from other and what can be deduced it.
Because of the length scale and high specific surface area nanometer-sized particles, they exhibit novel properties as compared with their bulk counterpart materials. Furthermore, incorporation well-characterized nanoparticles in various organic matrices provides dielectrics improved electrical, mechanical thermal features. Alumina tantalum-pentoxide have been proved efficient fillers such nanocomposites. These particles are herein produced by DC anodic arc-discharge immersed water probed...
Abstract Smart surfaces with externally controlled wettability patterns are ubiquitous building blocks for micro-/nanofluidic and lab-on-chip devices, among others. We develop hierarchical of ZnO nanorods grown on laser-microstructured silicon reversible photo-induced heat-induced wettability. The as-prepared superhydrophilic, very low water contact angles (~ 10°), transition to a wetting state high 150°) when annealed in vacuum. As the annealing temperature increases 400 °C, become...
Because of the length scale and high specific surface area nanometer-sized particles, they exhibit novel properties as compared with their bulk counterpart materials. Furthermore, incorporation well-characterized nanoparticles in various organic matrices provides dielectrics improved electrical, mechanical thermal features. Alumina tantalum-pentoxide have been proved efficient fillers such nanocomposites. These particles are herein produced by DC anodic arc-discharge immersed water probed...