publications
Robust large-area molecular junctions of self-assembled monolayers of a model helical paddlewheel complex
We report the preparation of a helical complex and its study in molecular junctions. We show that the SAMs of this racemic compound present electrically robust behaviour which will pave the way for future studies on the CISS effect with analogous enantiopure compounds. Isabel Coloma, Thierry Buffeteau, Gilles Pecastaings, Santiago Herrero, Elizabeth Hillard, Patrick Rosa, … Read More
Non classé, publications
Reversible Self-assembly of a Viologen-based Supramolecular Gel Network under Electrochemical Control
Redox-responsive supramolecular gels involving highly ordered assemblies of small molecules that can exist in different stable oxidation states are very promising soft materials for many applications ranging from catalysis to electronics. Stimulation of such materials has however so far relied mainly on the addition of chemical fuels (oxidizing or reducing agents) which makes the reversibility… Read More
publications
Hysteresis Photomodulation within Photochromic Assemblies of [Dy(Tp2−py)F]+ Single-Molecule Magnets : Influence of the Supramolecular Magnetic Couplings.
A 1D coordination compound made of a photochromic dithienylethene linker and [Dy(Tp2−py)F]+ units (with Tp2−py=tris(3-(2-pyridyl)pyrazolyl)hydroborate) and having tetrakis[3,5-bis(trifluoromethyl)phenyl]borate counterions is reported. Full photoconversion from the closed isomer to the open isomer of the dithienylethene within single crystals allow for monitoring of the transformation by photocrystallography. Magnetic slow relaxation as well as magnetic hysteresis are observed… Read More
publications
Describing stripelike corrugation patterns in C60 monolayers grown on Cu(111) using a frustrated spin Hamiltonian
In the submonolayer regime, fullerene molecules tend to form compact islands on dense-packed metal surfaces. On Cu(111), these islands exhibit various types of corrugation patterns caused by a compressive epitaxial stress and an atomic-scale reconstruction of the metal surface. Following a strategy we introduced in a previous study [Phys. Rev. Lett. 131, 186201 (2023)], we… Read More
publications, Réseau
Light-Modulated Humidity Sensing in Spiropyran Functionalized MoS2 Transistors
The optically tuneable nature of hybrid organic/inorganic heterostructures tailored by interfacing photochromic molecules with 2D semiconductors (2DSs) can be exploited to endow multi-responsiveness to the exceptional physical properties of 2DSs. In this study, a spiropyran-molybdenum disulfide (MoS2) light-switchable bi-functional field-effect transistor is realized. The spiropyran-merocyanine reversible photo-isomerization has been employed to remotely control both the… Read More
publications, Réseau
Large Orbital Moment and Dynamical Jahn-Teller Effect of AlCl-Phthalocyanine on Cu(100)
Submonolayer amounts of chloroaluminum-phthalocyanine on Cu(100) were studied with scanning tunneling spectroscopy. The molecule can be prepared in a fourfold symmetric state whose conductance spectrum exhibits a zero-bias feature similar to a Kondo resonance. In magnetic fields, however, this resonance splits far more than expected from the spin of a single electron. Density functional theory… Read More
publications, Réseau
Boosting Zinc Hybrid Supercapacitor Performance via Thiol Functionalization of Graphene-Based Cathodes
Zinc hybrid supercapacitors (Zn-HSCs) hold immense potential toward the next-generation energy storage systems, effectively spanning the divide between conventional lithium-ion batteries (LIBs) and supercapacitors. Unfortunately, the energy density of most of Zn-HSCs has not yet rivalled the levels observed in LIBs. The electrochemical performance of aqueous Zn-HSCs can be enhanced through the chemical functionalization of… Read More
publications, Réseau
Square ice Coulomb phase as a percolated vertex lattice
The square ice is a canonical example of a Coulomb phase in two dimensions: Its ground state is extensively degenerate and satisfies a local constraint on the spin arrangement (the so-called ice rule). In this paper, we use a loop flip algorithm to explore the properties of this ground state that we analyze not in… Read More
publications, Réseau
Geometrical Frustration, Correlated Disorder, and Emerging Order in a Corrugated C60 Monolayer
Under certain experimental conditions, the deposition of C60 molecules onto an atomically flat copper surface gives rise to the formation of corrugated islands. This corrugation, which reflects a molecular displacement perpendicular to the surface plane, presents an astonishing pattern: It is well described by a frustrated Ising spin Hamiltonian whose thermodynamics is compatible with a… Read More
publications, Réseau
Opto-electrochemical Synaptic Memory in Supramolecularly Engineered Janus 2d MoS2
Artificial synapses combining multiple yet independent signal processing strategies in a single device are key enabler to achieve high-density of integration, energy efficiency and fast data manipulation in brain-like computing. By taming functional complexity, the use of hybrids comprising multiple materials as active components in synaptic devices represents a powerful route to encode both short-term… Read More
