A5008300110- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetism in coordination complexes
- Molecular Junctions and Nanostructures
- Lanthanide and Transition Metal Complexes
- Porphyrin and Phthalocyanine Chemistry
- Silicon Nanostructures and Photoluminescence
- Quantum and electron transport phenomena
- Quantum Dots Synthesis And Properties
- Organic and Molecular Conductors Research
- Crystallography and molecular interactions
- Surface Chemistry and Catalysis
- Metal-Catalyzed Oxygenation Mechanisms
- Electron Spin Resonance Studies
- Metal complexes synthesis and properties
- Magnetic properties of thin films
- Metamaterials and Metasurfaces Applications
- Antenna Design and Analysis
- Microfluidic and Capillary Electrophoresis Applications
- Microfluidic and Bio-sensing Technologies
- Nanowire Synthesis and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Electrowetting and Microfluidic Technologies
- Advanced Materials Characterization Techniques
- Advanced Antenna and Metasurface Technologies
Centre National de la Recherche Scientifique
2009-2025
Université de Bordeaux
2017-2025
Institut de Chimie de la Matière Condensée de Bordeaux
2017-2025
Institut Polytechnique de Bordeaux
2018-2025
Bipar
2018-2020
Harvard University
2014-2017
Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine
2010-2016
Institut de Ciència de Materials de Barcelona
2010-2016
Bioengineering Center
2016
Mallinckrodt (United States)
2014
The two-dimensional self-assembly of a terbium(III) double-decker phthalocyanine on highly oriented pyrolitic graphite (HOPG) was studied by atomic force microscopy (AFM), and it shown that forms regular rectangular nanocrystals the surface, are aligned with symmetry axes, in which molecules organized lattice as scanning tunneling microscopy. Molecular dynamics simulations were run order to model behavior collection complexes HOPG. results excellent agreement experiment, showing that—after...
A terbium double-decker phthalocyanine complex has been prepared and characterized. The mesomorphism of the liquid-crystalline is used as a tool to reversibly adjust its magnetic properties, thus allowing coexistence two different relaxation processes, which can be modified by simple thermal treatments, observed. Detailed facts importance specialist readers are published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted...
Optical metasurfaces—patterned arrays of plasmonic nanoantennas that enable the precise manipulation light–matter interactions—are emerging as critical components in many nanophotonic materials, including planar metamaterials, chemical and biological sensors, photovoltaics. The development these materials has been slowed by difficulty efficiently fabricating patterns with required combinations intricate nanoscale structure, high areal density, and/or heterogeneous composition. One convenient...
The hysteresis of magnetization the anionic, neutral, and cationic forms a bis(phthalocyaninato)terbium-based complex ([Pc2Tb]−/0/+) have been determined using magnetic circular dichroism (MCD) spectroscopy in frozen dilute solutions at low temperatures (1.5 K) showing that three oxidation states exhibit single-molecule behaviors.
Abstract The Fe(II) spin crossover complex [Fe{H 2 B(pz) } (bipy)] (pz = pyrazol‐1‐yl, bipy 2,2′‐bipyridine) can be locked in a largely low‐spin‐state configuration over temperature range that includes temperatures well above the thermal of 160 K. This locking state is achieved for nanometer thin films this two distinct ways: through substrate interactions with dielectric substrates such as SiO and Al O 3 , or powder samples by mixing strongly dipolar zwitterionic p ‐benzoquinonemonoimine C...
This paper describes charge transport by tunneling across self-assembled monolayers (SAMs) of thiol-terminated derivatives oligo(ethylene glycol) (HS(CH2CH2O)nCH3; HS(EG)nCH3); these SAMs are positioned between gold bottom electrodes and Ga2O3/EGaIn top electrodes. Comparison the attenuation factor (β simplified Simmons equation) with corresponding value obtained length-matched oligophenyls (HS(Ph)nH) n-alkanethiols (HS(CH2)nH) demonstrates that have values β (β(EG)n = 0.29 ± 0.02 natom-1...
While most research on molecule-based electron spin qubits has focused S = 1/2 ions for single-qubit gates, the need qubit interactions in quantum operations driven interest higher-spin molecules and multilevel states. Herein, we study dynamics of two mononuclear gadolinium-substituted polyoxometalate-organic hybrids with general formula K5[Gd(α-XW11O39)(H2L)]·14H2O (X Si, Ge; H2L N,N'-dimethyl-N,N'-bis(2-hydroxy-3-formyl-5-bromobenzyl)ethylenediamine), 1Si-Gd 1Ge-Gd. Pulsed EPR measurements...
We report the preparation of a helical complex and its study in molecular junctions. show that SAMs this racemic compound present an electrically robust behaviour which will...
Double-decker phthalocyanine lanthanide complexes are single molecule magnets (SMMs) presenting a thermally activated magnetic relaxation with relatively high effective barriers. For this reason they potential candidates as components for data storage and spintronic devices. One of the disadvantages these compounds is their redox instability: oxidized or reduced in presence mild oxidizing reducing agents. To solve issue, we designed, prepared characterized new double-decker based SMMs...
Abstract Thin films of a molecular spin crossover (SCO) Iron(II) complex featuring high transition temperature are grown by sublimation in vacuum on TS Au and investigated X‐ray UV photoelectron spectroscopies. Temperature‐dependent studies demonstrate that the thermally induced behavior is preserved thin films. A large‐area ultrathin switchable vertical tunnel junction with top electrodes liquid eutectic gallium indium, for which spin‐state switching induces two orders magnitude change...
Abstract This work examines charge transport (CT) through self‐assembled monolayers (SAMs) of oligoglycines having an N‐terminal cysteine group that anchors the molecule to a gold substrate, and demonstrate CT is rapid (relative SAMs n ‐alkanethiolates). Comparisons rates transport‐using junctions with structure Au TS /SAM//Ga 2 O 3 /EGaIn (across these oligoglycines, across number structurally electronically related molecules) established tunneling along are comparable oligophenyl groups...
Materials science is a fast-evolving area that aims to uncover functional materials with ever more sophisticated properties and functions. For this happen, new methodologies for synthesis, optimization, preparation are desired. In context, microfluidic technologies have emerged as key enabling tool low-cost fast prototyping of materials. Their ability screen multiple reaction conditions rapidly small amount reagent, together their unique physico-chemical characteristics, made devices...
F64Pc2Ln (1Ln, Ln = Tb or Lu) represent the first halogenated phthalocyanine double-decker lanthanide complexes, and 1Tb exhibits single-molecule magnet properties as revealed by solid-state magnetometry. The fluorine substituents of rings have a dramatic effect on redox namely, stabilization their reduced states. Electrochemical spectroelectrochemical measurements demonstrate that 1Tb–/2– 1Tb2–/3– couples exhibit reversibility 1Tb–, 1Tb2– 1Tb3– species may be prepared bulk electrolysis in...
Herein, we report the identification of a novel high-vacuum processable spin-crossover complex which can be efficiently used to prepare continuous ultrathin films with retention switchable magnetic properties.
This work describes the study of molecular junctions embedding spin crossover complex [Fe(H<sub>2</sub>B(pz)<sub>2</sub>)<sub>2</sub>(phen)] as an active switchable thin film.
This paper describes a strategy that uses template-directed self-assembly of micrometer-scale microspheres to fabricate arrays microlenses for projection photolithography periodic, quasiperiodic, and aperiodic infrared metasurfaces. method "template-encoded microlens lithography" (TEMPL) enables rapid prototyping planar, multiscale patterns similarly shaped structures with critical dimensions down ∼400 nm. Each these is defined by local lithography single microsphere acting as lens. explores...
This paper reports the development of Metal-amplified Density Assays, or MADAs - a method conducting quantitative multiplexed assays, including immunoassays, by using Magnetic Levitation (MagLev) to measure metal-amplified changes in density beads labeled with biomolecules. The binding target analytes (i.e. proteins, antibodies, antigens) complementary ligands immobilized on surface beads, followed chemical amplification form that results change (achieved gold nanoparticle-labeled...
We report on a spectroscopic multitechnique approach to study the metal/radical spinterface formed by perchlorinated trityl radical derivative and either gold or silver. The fingerprint of their paramagnetic properties could be determined comparison with diamagnetic precursor DFT calculations. Thanks presented approach, we gain unprecedented insight into radical-metal interaction how this latter perturbs spin polarization consequently magnetoelectronic adlayer. Knowledge factors influencing...
Bisphthalocyaninato terbium complexes show a long magnetization relaxation time at relatively high temperatures---which makes them very interesting as magnets single-molecule level. Their technological exploitation, however, requires the addressing of individual molecules, therefore deposition on surfaces is topic great interest interaction with substrate can play crucial role in definition molecule properties. In this work we investigate electronic and magnetic properties anionic neutral...
A new liquid-phase redox synthesis to form silicon nanoparticles allows the solvent used during determine particle size and fluorescent properties.
H2O and cyclohexane adsorption properties the CO2 CO capture capability of microporous material Fe(pz)[Pt(CN)4] were examined. This 3D coordination polymer retained its crystallinity structural stability after all adsorption–desorption experiments (demonstrated by PXRD BET surface area). Thus, total water uptake was equal to 14.6 wt % (8.12 mmol g–1) at 90% P/P0, in comparison cyclohexane, demonstrated a relatively high degree hydrophilicity. The 0.28 g–1, which value 8.12 corroborated such...
Spin crossover complexes are among the most studied classes of molecular switches and have attracted considerable attention for their potential technological use as active units in multifunctional devices. A fundamental step toward practical implementation is integration macroscopic devices adopting hybrid vertical architectures. First, physical properties interest shown by these materials bulk phase to be retained once they deposited on a solid surface. Herein, we describe study inorganic...
A new surfactant-free, flow-focusing droplet microfluidic approach was developed as an important alternative to existing synthesis techniques for the preparation of spin crossover nanoparticles.