# GDR NEMO > New Molecular Electronics ## Posts - [Synthesis, Photophysical, and Chiroptical Properties of Optically Active BINOL-Boranil Enantiomers](https://gdr-nemo.fr/synthesis-photophysical-and-chiroptical-properties-of-optically-active-binol-boranil-enantiomers/): We describe a very simple and efficient gram-scale synthetic pathway toward Boranils substituted directly on the boron center by 1,1′-bi-2-naphthol derivatives (BINOL). Properties of the resulting BINOL-Boranils were investigated by nuclear magnetic resonance (NMR), UV–visible, fluorescence, electronic circular dichroism (ECD), and circularly polarized luminescence (CPL) spectroscopies. Insight into the molecular structure is also provided based on single-crystal X-ray diffraction experiments. These chiral dyes typically feature high molar absorption coefficients in the range of 35,000 to 90,000 M–1·cm–1, absorption dissymmetry factors (gabs) in the range of 2.5–5.5 × 10–4 at the maximum wavelength of absorption of Boranils, and CPL brightness up to... - [Robust large-area molecular junctions of self-assembled monolayers of a model helical paddlewheel complex](https://gdr-nemo.fr/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,  Miguel Cortijo and Mathieu Gonidec, Nanoscale, 2025, 17, 12065-1207, https://doi.org/10.1039/D5NR00050E - [Reversible Self-assembly of a Viologen-based Supramolecular Gel Network under Electrochemical Control](https://gdr-nemo.fr/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 of the induced phenomena intrinsically limited. In this context, electrochemical stimulation is particularly interesting but unfortunately remains largely unexplored due to major scientific and technical obstacles. Here we present the electrochemical response of a supramolecular gel obtained by self-assembly of a low molecular weight gelator derived... - [Hysteresis Photomodulation within Photochromic Assemblies of [Dy(Tp2−py)F]+ Single-Molecule Magnets : Influence of the Supramolecular Magnetic Couplings.](https://gdr-nemo.fr/hysteresis-photomodulation-within-photochromic-assemblies-of-dytp2%e2%88%92pyf-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 and can be both modulated upon light irradiation. Comparison with previously published structures with similar components highlights the role of the supramolecular organization, and of dipolar couplings within these compounds, in driving the nature of the observed hysteresis photomodulation. Dr. Nour El Beyrouti, Dr. Felix Houard,... - [Pre-ICMM Meetings : Olivier Kahn Discussions in Paris](https://gdr-nemo.fr/pre-icmm-meetings-olivier-kahn-discussions-in-paris/): Pre-ICMM Meetings: Olivier Kahn Discussions (OKD) Three Pre-ICMM2025 meetings will take place in downtown Paris between October the 23rd, 2 pm and October the 24th, 6 pm. They are organized as three parallel synchronized sessions on the three main topics: Molecular Magnets, Spin Crossover Materials, and Molecular Spintronics including three plenary lectures common to the three satellites. The oral contributions are only on invitation. Registration: free but mandatory (limited number of participants, 40 for each OKD).  Registration can be made by sending an e-mail to only one of the following addresses: molmag.Icmm2025sat@universite-paris-saclay.fr for the OKD Satellite on Molecular Magnets spincrossover.Icmm2025sat@universite-paris-saclay.fr for the OKD Satellite on Spin Crossover molspintronics.Icmm2025sat@universite-paris-saclay.fr for the OKD Satellite on Molecular Spintronics - [Describing stripelike corrugation patterns in C60 monolayers grown on Cu(111) using a frustrated spin Hamiltonian](https://gdr-nemo.fr/describing-stripelike-corrugation-patterns-in-c60-monolayers-grown-on-cu111-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 use scanning tunneling microscopy to study molecule-molecule correlations in stripelike corrugation patterns that develop in C60 islands. Overall, these correlations are well described by a frustrated on-lattice Ising spin Hamiltonian that includes spin-spin interactions up to the third-nearest neighbor. Careful comparison between the measured and computed... - [N°4 des Chroniques scientifiques du GDR](https://gdr-nemo.fr/n4-des-chroniques-scientifiques-du-gdr/): retrouvez sur notre site le numero 4 des chroniques scientifiques du GDR ici - [PhD position in Printed Organics Electronics](https://gdr-nemo.fr/phd-position-in-printed-organics-electronics/): Résumé offre printed OTFT : The PhD candidate will be joining the Institut d’Electronique et des Technologies du numeRique within the Organic and silicon systems (OASiS) team to work on the development of printed organic thin film transistors (OTFT). In particular, the PhD candidate will contribute in studying the replacement of heterojunction contacts (inorganic-organic) by homojunction contacts (organic-organic) using intrinsic semiconductor polymers and implementing transfer printing processes. INSTITUT D’ÉLECTRONIQUE ET DES TECHNOLOGIES DU NUMÉRIQUE, UMR CNRS 6164, Université de Rennes – Campus de Beaulieu 263 Avenue du Général Leclerc – CS 74205, 35042 RENNES Cedex pdf - [PhD position in Printed Sensors](https://gdr-nemo.fr/phd-position-in-printed-sensors/): Résumé offre printed sensors : The PhD candidate will be joining the Institut d’Electronique et des Technologies du numéRique within the Organic and silicon systems (OASiS) team to work on the development of bio-inspired sensors. The candidat will take part in identifying natural and biodegradable materials, optimising the manufacturing processes and characterising and validating the printed sensors. INSTITUT D’ÉLECTRONIQUE ET DES TECHNOLOGIES DU NUMÉRIQUE, UMR CNRS 6164, Université de Rennes – Campus de Beaulieu 263 Avenue du Général Leclerc – CS 74205, 35042 RENNES Cedex pdf   - [Electroisomerization blinking of an azobenzene derivative molecule](https://gdr-nemo.fr/electroisomerization-blinking-of-an-azobenzene-derivative-molecule/): We report here the reversibility and bistability of the switching behavior in an azobenzene derivative induced by the bias applied by a scanning-tunneling microscopy (STM) tip, at low temperature and in ultra-high vacuum environment. This cis-to-trans and trans-to-cis switching were observed during STM imaging in either polarity at +2 V or −2 V, on a sub-second time scale. This results in a blinking effect visible on STM images, corresponding to the reversible switching of the azobenzene molecule under the applied STM bias through an electric field induced process.   Sylvie Godey, Hugo Therssen, David Guérin, Thierry Mélin and Stéphane Lenfant, Nanotechnology... - [Multi-stimuli actuation of a photoresponsive azobenzene based molecular switch](https://gdr-nemo.fr/multi-stimuli-actuation-of-a-photoresponsive-azobenzene-based-molecular-switch/): There has been considerable interest in building switching functions into self-assembled monolayers with switching actuated by external stimuli such as light, electrical current, heat, pressure or chemical changes. In this study, dual switching functionality has been built into azobenzene based molecular monolayers. Switching behaviour has been compared for unsubstituted azobenzene monolayer adsorbates and two other monolayers whose ortho position on the terminal phenyl group is substituted by ethyl and isopropyl chains, respectively. The dual molecular switching functionality with light or protonation actuation is compared. EGaIn contacts to the monolayers have been used to record the J–V curves and characterize the on/off... - [Light-Modulated Humidity Sensing in Spiropyran Functionalized MoS2 Transistors](https://gdr-nemo.fr/21942-2/): 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 electron transport and wettability of the hybrid structure. This manipulation is instrumental for tuning the sensitivity in humidity sensing. The hybrid organic/inorganic heterostructure is subjected to humidity testing, demonstrating its ability to accurately monitor relative humidity (RH) across a range of 10%–75%. The electrical output shows... - [Large Orbital Moment and Dynamical Jahn-Teller Effect of AlCl-Phthalocyanine on Cu(100)](https://gdr-nemo.fr/large-orbital-moment-and-dynamical-jahn-teller-effect-of-alcl-phthalocyanine-on-cu100/): 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 calculations reveal a charge transfer of 1.3 electrons to the degenerate lowest unoccupied molecular orbitals. These orbitals are mixed by the orbital momentum operator with a large matrix element corresponding to 𝑚𝐿≈2.7. Dehydrogenation of a ligand lifts the degerenracy of the lowest unoccupied molecular orbital, reduces... - [Postdoc offer](https://gdr-nemo.fr/postdoc-offer/): Controlling the properties of 2D materials by defect engineering and atomic scale characterization by scanning tunneling microscopy   In this project, we will use scanning tunneling microscopy and spectroscopy (STM/STS) operating under ultra-high vacuum and at low temperature to study the structure and electronic properties of generated defects in 2D materials at the atomic scale. Substitutional atoms (such as nitrogen in graphene), vacancies and other defects will be used to tune the properties of the materials in order to reach new functionalities (see Figure). The impact of defects on the density of states will be investigated at the atomic scale by... - [1ere Journées Plénières du GDR 2022](https://gdr-nemo.fr/1ere-journees-plenieres-du-gdr-2022/): Retour sur les premières Journée Plénières du GDR (26-28 Septembre 2022 ) Le 26-27 septembre 2022 s’est déroulée les premières journées plénières du GDR sur le site d’Odéon de l’université Paris Cité. Nous avons été ravis de vous accueillir pour ces premières journées et de l’avis de tous ces journées ont permis de réunir une bonne partie de la communauté déjà identifiée (64 participants avec ~30 laboratoires). Les échanges scientifiques avec 28 communications orales et deux tables rondes ont permis de voir toute l’étendue du domaine et la complémentarité des uns et des autres. Merci a tous les sponsors financiers et... - [Boosting Zinc Hybrid Supercapacitor Performance via Thiol Functionalization of Graphene-Based Cathodes](https://gdr-nemo.fr/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 graphene-based cathode materials with thiol moieties as they will be highly suitable for favoring Zn2+ adsorption/desorption. Here, a single-step reaction is employed to synthesize thiol-functionalized reduced graphene oxide (rGOSH), incorporating both oxygen functional groups (OFGs) and thiol functionalities, as demonstrated by X-ray photoelectron spectroscopy (XPS) studies.... - [Square ice Coulomb phase as a percolated vertex lattice](https://gdr-nemo.fr/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 terms of a spin texture, but rather in terms of a spatial distribution of ice-rule satisfying vertices. More specifically, we determine for various lattice sizes the average vertex populations characterizing the ice manifold, the pairwise vertex correlations, and the size distribution of vertex clusters. Comparing these... - [In Operando Study of Charge Modulation in MoS2 Transistors by Excitonic Reflection Microscopy](https://gdr-nemo.fr/in-operando-study-of-charge-modulation-in-mos2-transistors-by-excitonic-reflection-microscopy/): Monolayers of transition metal dichalcogenides (2D TMDs) experience strong modulation of their optical properties when the charge density is varied. Indeed, the transition from carriers composed mostly of excitons at low electron density to a situation in which trions dominate at high density is accompanied by a significant evolution of both the refractive index and the extinction coefficient. Using optical interference reflection microscopy at the excitonic wavelength, this (n, κ)–q relationship can be exploited to directly image the electron density in operating TMD devices. In this work, we show how this technique, which we call XRM (excitonic reflection microscopy), can be... - [Instability of Cobalt-Substituted Polyoxometalates during the Oxygen Evolution Reaction: An Operando X-ray Absorption Spectroscopy Study](https://gdr-nemo.fr/instability-of-cobalt-substituted-polyoxometalates-during-the-oxygen-evolution-reaction-an-operando-x-ray-absorption-spectroscopy-study/): Complexes of cobalt(II) stabilized by lacunary polyoxometalates (CoPOMs) are highly discussed water oxidation catalysts (WOC). While their activity and stability in the oxygen evolution reaction (OER) have been widely explored, there is still no consensus between those claiming that CoPOMs are active and stable OER catalysts and those suggesting that they rather act as precatalysts, which degrade into OER-active heterogeneous CoOx catalysts. In this work, we use operando X-ray absorption spectroscopy along with electrochemical methods (cyclic voltammetry, chronoamperometry) to assess the activity and stability of [Co9(H2O)6(OH)3(HPO4)2(PW9O34)3]16– (Co9POM) under chemical and electrochemical operating conditions. First, we demonstrate that Co9POM dissolved in a... - [Electronic Properties of Electroactive Ferrocenyl-Functionalized MoS2](https://gdr-nemo.fr/electronic-properties-of-electroactive-ferrocenyl-functionalized-mos2/): The attachment of redox-active molecules to transition metal dichalcogenides, such as MoS2, constitutes a promising approach for designing electrochemically switchable devices through the control of the material’s charge/spin transport properties by the redox state of the grafted molecule and thus the applied electrical potential. In this work, defective plasma-treated MoS2 is functionalized by a ferrocene derivative and thoroughly investigated by various characterization techniques, such as Raman, photoluminescence, and X-ray photoelectron spectroscopies; atomic force microscopy (AFM); and electrochemistry. Furthermore, in-plane and out-of-plane conductive AFM measurements (I–V and first derivative ∂I/∂V–V curves) are measured to investigate the effect of the chemical functionalization of... - [Offre de Thèse IPCM](https://gdr-nemo.fr/offre-de-these-ipcm/): KEYWORDS: Molecular Rectifiers, Self-Assembled Molecular Networks, surface functionalisation, charge transfer, organic electronics The candidate will be working on the design and synthesis of novel, self-assembling molecular networks (SAMNs) for current rectification. This PhD project will focus on the design of different molecular building blocks to optimize contact quality, minimize contact resistance, and improve interface capacitance. Additionally, we will investigate various electron donor and acceptor components to efficiently tune intermolecular charge transfer, identified as a crucial factor in enhancing rectifier performance. The developed SAMNs will be tailored for adsorption on diverse conductive substrates. CONTACT: Lydia Sosa Vargas lydia.sosa-vargas@sorbonne-universite.fr For more information and... - [COMBINED MASTER + PHD POSITIONS CALL](https://gdr-nemo.fr/combined-master-phd-positions-call/): NanoGUNE offers scholarships to students to conduct both their Master thesis and their subsequent PhD thesis within one of nanoGUNE’s research groups, for the purpose of acquiring both degrees in conjunction with respective Master and PhD programs at the University of the Basque Country. Opening: 29 January 2024 Deadline: 29 February 2024 Scholarships resolution will be announced: 27 March 2024 The Master scholarships will be of a total amount of 350€ per month for up to 10 months. After completing the Master, a PhD position will be available and funded, so that the scholarship recipients can smoothly continue their research and advanced degree education as long as they and their thesis advisors are interested... - [Molecular Junctions for Terahertz Switches and Detectors](https://gdr-nemo.fr/molecular-junctions-for-terahertz-switches-and-detectors/): Molecular electronics targets tiny devices exploiting the electronic properties of the molecular orbitals, which can be tailored and controlled by the chemical structure and configuration of the molecules. Many functional devices have been experimentally demonstrated; however, these devices were operated in the low-frequency domain (mainly dc to MHz). This represents a serious limitation for electronic applications, although molecular devices working in the THz regime have been theoretically predicted. Here, we experimentally demonstrate molecular THz switches at room temperature. The devices consist of self-assembled monolayers of molecules bearing two conjugated moieties coupled through a nonconjugated linker. These devices exhibit clear negative differential... - [Offre de thèse](https://gdr-nemo.fr/offre-de-these/): Light and matter theory group at the Institute of Physics (FZU) of the Czech Academy of Sciences (CAS) in Prague invites applications for the position: PhD student in theoretical atomic-scale optics of nanostructures The successful candidate (m/f/d) will join a recently established research team lead by Tomáš Neuman that investigates atomic-scale optical properties of molecules and low dimensional materials, particularly in the context of scanning probe microscopy and spectroscopy. What you will do: • Investigate transport and optical properties of nanomaterials (2D materials, molecules…) • Integrate results of ab-initio calculations into models addressing light-mater interaction in atomic-scale optical environments (light emission... - [Covalent shaping of polyoxometalate molecular films onto ITO electrodes for charge trapping induced resistive switching](https://gdr-nemo.fr/covalent-shaping-of-polyoxometalate-molecular-films-onto-ito-electrodes-for-charge-trapping-induced-resistive-switching/): As nano-sized molecular oxides, polyoxometalates (POMs) hold great promise in non-volatile memory materials based on redox-active molecules. Materials processed from solution, by drop-casting, by embedding POMs in polymers, or using layer-by-layer deposition techniques have thus been reported and successfully investigated. Almost all of these examples are electrostatically assembled materials. We herein propose an original route for the elaboration of robust covalent POM networks, to seek the influence of the shaping process on the POM-to-POM communication and the final device performance. Capitalizing on our experience in the handling of organic–inorganic POM hybrids, we have prepared diazonium hybrids to harness the propensity of... - [Destructive quantum interference in meta-oligo(phenyleneethynylene) molecular wires with gold–graphene heterojunctions](https://gdr-nemo.fr/destructive-quantum-interference-in-meta-oligophenyleneethynylene-molecular-wires-with-gold-graphene-heterojunctions/): Quantum interference (QI) is well recognised as a significant contributing factor to the magnitude of molecular conductance values in both single-molecule and large area junctions. Numerous structure–property relationship studies have shown that para-connected oligo(phenyleneethynylene) (OPE) based molecular wires exemplify the impact of constructive quantum interference (CQI), whilst destructive quantum interference (DQI) effects are responsible for the orders of magnitude lower conductance of analogous meta-contacted OPE derivatives, despite the somewhat shorter effective tunnelling distance. Since molecular conductance is related to the value of the transmission function, evaluated at the electrode Fermi energy, T(EF), which in turn is influenced by the presence and relative energy of... - [Geometrical Frustration, Correlated Disorder, and Emerging Order in a Corrugated C60 Monolayer](https://gdr-nemo.fr/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 spin liquid about to transit toward an ordered zigzag state. Here we study the statistical properties of such a molecular corrugation using a structure factor analysis, a tool generally employed in frustrated magnetism. More specifically, the real and reciprocal space analysis of pairwise molecule correlations allows... - [Opto-electrochemical Synaptic Memory in Supramolecularly Engineered Janus 2d MoS2](https://gdr-nemo.fr/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 potentiation (STP) and long-term potentiation (LTP) in synaptic circuitries. To meet such a grand challenge, herein we have developed a novel Janus two-dimensional (2D) material by dressing asymmetrically the two surfaces of 2D molybdenum disulfide (MoS2) with an electrochemically-switchable ferrocene (Fc)/ ferrocenium (Fc+) redox couple and... - [Enhanced interfacial water dissociation on a hydrated iron porphyrin single-atom catalyst in graphene](https://gdr-nemo.fr/enhanced-interfacial-water-dissociation-on-a-hydrated-iron-porphyrin-single-atom-catalyst-in-graphene/): Single Atom Catalysis (SAC) is an expanding field of heterogeneous catalysis in which single metallic atoms embedded in different materials catalyze a chemical reaction, but these new catalytic materials still lack fundamental understanding when used in electrochemical environments. Recent characterizations of non-noble metals like Fe deposited on N-doped graphitic materials have evidenced two types of Fe-N4 fourfold coordination, either of pyridine type or of porphyrin type. Here, we study these defects embedded in a graphene sheet and immersed in an explicit aqueous medium at the quantum level. While the Fe-pyridine SAC model is clear cut and widely studied, it is not... - [Prix de thèse 2023 du GDR NEMO](https://gdr-nemo.fr/prix-de-these-2023-du-gdr-nemo/): Nous sommes heureux d’annoncer que le prix de thèse 2023 du GDR NEMO a été attribué à Laurette Jerro (UMPhys Thales – Université Paris-Saclay) pour ses travaux sur la spintronique moléculaire à base de molécules photocommutables de diarylethènes menés sous la direction de Richard Mattana et Pierre Seneor. Son activité à notamment permis la réalisation des toutes premières jonctions tunnel magnétiques intégrant une monocouche auto-assemblée de molécules actives pour des applications en spintronique. Le bureau de du GDR souhaite féliciter la lauréate et l’invite à participer aux prochaines journées plénières afin de présenter ses travaux. Il tient également à remercier l’ensemble... - [Nonuniform STM Contrast of Self-Assembled Tri-n-octyl-triazatriangulenium Tetrafluoroborate on HOPG](https://gdr-nemo.fr/nonuniform-stm-contrast-of-self-assembled-tri-n-octyl-triazatriangulenium-tetrafluoroborate-on-hopg/): We have assembled 4,8,12-tri-n-octyl-4,8,12-triazatrianguleniumtetrafluoroborate (TATA-BF4) on highly oriented pyrolytic graphite (HOPG) and have studied the structure and tunneling properties of this self-assembled monolayer (SAM) using scanning tunneling microscopy (STM) under ambient conditions. We show that the triazatriangulenium cations TATA(+) form hexagonally packed structures driven by the interaction between the aromatic core and the HOPG lattice, as evidenced by density functional theory (DFT) modeling. According to the DFT results, the three alkyl chains of the platform tend to follow the main crystallographic directions of HOPG, leading to a different STM appearance. The STM contrast of the SAM shows that the monolayer is... - [Quantum Transport in Large-Scale Patterned Nitrogen-Doped Graphene](https://gdr-nemo.fr/quantum-transport-in-large-scale-patterned-nitrogen-doped-graphene-2/): It has recently been demonstrated how the nitrogen dopant concentration in graphene can be controlled spatially on the nano-meter scale using a molecular mask. This technique may be used to create ballistic electron optics-like structures of high/low doping regions; for example, to focus electron beams, harnessing the quantum wave nature of the electronic propagation. Here, we employ large-scale Greens function transport calculations based on a tight-binding approach. We first benchmark different tight-binding models of nitrogen in graphene with parameters based on density functional theory (DFT) and the virtual crystal approximation (VCA). Then, we study theoretically how the random distribution within the... - [Elucidating the effect of spin crossover materials on graphene sensing devices](https://gdr-nemo.fr/elucidating-the-effect-of-spin-crossover-materials-on-graphene-sensing-devices/): Graphene films are used to detect the presence and transition of spin crossover nanoparticle aggregates. Experiments performed far from the graphene neutrality point, combining impedance spectroscopy and Hall measurements, provide better insight into the mechanism for the change of impedance of the graphene layer in proximity with different states of the molecular structure. We observe that the change of spin state shifts the graphene Fermi level and its intrinsic resistance, with resulting positive insight into using this type of hybrid device for fast molecular electronics purposes. Krishna Maity; Jean-François Dayen; Marlène Palluel; Nathalie Daro; Guillaume Chastanet; Bohdan Kundys; Bernard Doudin Appl.... - [A simple and efficient process for the synthesis of 2D carbon nitrides and related materials](https://gdr-nemo.fr/a-simple-and-efficient-process-for-the-synthesis-of-2d-carbon-nitrides-and-related-materials/): We describe here a new process for the synthesis of very high quality 2D Covalent Organic Frameworks (COFs), such a C2N and CN carbon nitrides. This process relies on the use of a metallic surface as both a reagent and a support for the coupling of small halogenated building blocks. The conditions of the assembly reaction are chosen so as to leave the inorganic salts by-products on the surface, to further confine the assembly reaction on the surface and increase the quality of the 2D layers. We found that under these conditions, the process directly returns few layers material. The structure/quality... - [Highly conductive tungsten suboxide nanotubes](https://gdr-nemo.fr/highly-conductive-tungsten-suboxide-nanotubes/): We demonstrate a high electron conductivity (>102 S/cm and up to 103 S/cm) of tungsten suboxide W18O52.4−52.9 (or equivalently WO2.91−2.94) nanotubes (2–3 nm in diameter, ∼μm long). The conductivity is measured in the temperature range of 120–300 K by a four-probe scanning tunneling microscope in ultrahigh vacuum. The nanotubes are synthesized by a low-temperature and low-cost solvothermal method. They self-assemble in bundles of hundreds of nanotubes forming nanowires (∼μm long, few tens nm wide). We observe a large anisotropy of the conductivity with a ratio (longitudinal conductivity/perpendicular conductivity) of ∼105. A large fraction of them (∼65%–95%) shows a metallic-like, thermal activation-less electron transport behavior. Few... - [How far the Chemistry of the Self-Assembly Monolayers on Gold Surfaces Affects their Work Function?](https://gdr-nemo.fr/how-far-the-chemistry-of-the-self-assembly-monolayers-on-gold-surfaces-affects-their-work-function/): Self-assembled monolayers composed of various long-chain aliphatic molecules and different tail functional groups have been synthesized on the Au(111) surface and characterized by Kelvin Probe Force Microscopy and Ultraviolet Photoelectron Spectroscopy. Carboxy, amino, thio and methyl terminal groups have been considered in the design of self-assembled monolayers with different aliphatic chain lengths (from C6 to C16). The work function measurements by Kelvin Probe Force Microscopy have been carried out under controled and room atmosphere. Remarkably, a reduction of the relative humidity from 40 % to 3 % has induced a work function shift up to 0.3 eV. As expected, the changes... - [Quantum Transport in Large-Scale Patterned Nitrogen-Doped Graphene](https://gdr-nemo.fr/quantum-transport-in-large-scale-patterned-nitrogen-doped-graphene/): It has recently been demonstrated how the nitrogen dopant concentration in graphene can be controlled spatially on the nano-meter scale using a molecular mask. This technique may be used to create ballistic electron optics-like structures of high/low doping regions; for example, to focus electron beams, harnessing the quantum wave nature of the electronic propagation. Here, we employ large-scale Greens function transport calculations based on a tight-binding approach. We first benchmark different tight-binding models of nitrogen in graphene with parameters based on density functional theory (DFT) and the virtual crystal approximation (VCA). Then, we study theoretically how the random distribution within the... - [Chiral and conductive viologen-based supramolecular gels exhibiting tunable charge-transfer properties](https://gdr-nemo.fr/chiral-and-conductive-viologen-based-supramolecular-gels-exhibiting-tunable-charge-transfer-properties/): Redox-active conductive supramolecular gels involving highly ordered chiral assemblies of small organic molecules are very promising soft materials for many applications ranging from catalysis to electronics. However, combining all these properties in the same material has so far remained a difficult task. We now report the synthesis and detailed structural, rheological, and electrical characterizations of supramolecular gels obtained by self-assembly of a dicationic low molecular weight gelator incorporating a redox-active 4,4′-bipyridinium unit. These molecules have been shown to self-assemble in pentanol to form chiral hollow core–shell cylinders, eventually yielding dendritic clusters inducing gelation. We also showed that the optical, rheological, and... - [Offre stage M2 ILV (3)](https://gdr-nemo.fr/offre-stage-m2-ilv-3/): Une approche à base de radicaux pour de nouveaux matériaux organiques collecteurs de lumière Supervisors: Wright Karen / Kreher David (karen.wright@uvsq.fr et david.kreher@uvsq.fr) Location: Insitut Lavoisier de Versailles Duration: 5/6 months details - [Offre Stage M2 ILV (2)](https://gdr-nemo.fr/offre-stage-m2-ilv-2/): Synthèse et étude de nouveaux complexes cyclométallés de l’Iridium(III) à ligand phényl-pyrazine Supervisors: Lepeltier Marc / Kreher David (marc.lepeltier@uvsq.fr et david.kreher@uvsq.fr) Location: Institut Lavoisier de Versailles, UMR 8180 duration: 5/6 months details - [Offre Stage M2 ILV](https://gdr-nemo.fr/offre-stage-m2-ilv/): ew type of organic material, hyperbolic metamaterials (HMMs) Supervisors: Pr. David Kreher (david.kreher@uvsq.fr), Emmanuel Allard (emmanuel.allard@uvsq.fr), Jason Bessonnet (jason.bessonnet@universite-paris-saclay.fr) Location: Institut Lavoisier de Versailles” (ILV) on the UVSQ university campus duration: 5/6 months details - [Offre Stage M2 CMP](https://gdr-nemo.fr/offre-stage-m2-cmp/): Fabrication and Analysis of Organic Electrochemical Transistors (OECTs) Supervisors : Dr. Luis Lozano (luis.lozanohernandez@emse.fr) and Dr. S. Sanaur (sanaur@emse.fr) Duration: 6 months-long, Starting Date: from February/March 2024 Grant: 600 net euros/ month Location : Centre de Microélectronique de Provence (CMP) (880, avenue de Mimet, Gardanne 13120, France) Possibility of pursuing a PhD within the framework of an European project details - [Positional and Rotational Molecular Degrees of Freedom at a Roughened Metal–Organic Interface: The Copper–Fullerene System and Its Multiple Structural Phases](https://gdr-nemo.fr/positional-and-rotational-molecular-degrees-of-freedom-at-a-roughened-metal-organic-interface-the-copper-fullerene-system-and-its-multiple-structural-phases/): The hybrid metal–organic interaction that molecular monolayers experience when deposited on metallic substrates can compete with intermolecular interactions and produce a variety of on-surface orders. The variety is already important when the molecule/substrate interface remains atomically flat. Here, we address the case of fullerene molecules deposited at room temperature on a Cu(111) surface with interface atomic-scale roughening. Surprisingly, 10 distinct copper–fullerene phases are found to coexist. Their structure, i.e., the surface relative fullerene/Cu composition and commensurability relationship with the substrate, is resolved using scanning tunneling microscopy and density functional theory calculations. This diversity in the surface roughening process is associated with... - [Hybrid molecular graphene transistor as an operando and optoelectronic platform](https://gdr-nemo.fr/hybrid-molecular-graphene-transistor-as-an-operando-and-optoelectronic-platform-2/): Lack of reproducibility hampers molecular devices integration into large-scale circuits. Thus, incorporating operando characterization can facilitate the understanding of multiple features producing disparities in different devices. In this work, we report the realization of hybrid molecular graphene field effect transistors (m-GFETs) based on 11-(Ferrocenyl)undecanethiol (FcC11SH) micro self-assembled monolayers (μSAMs) and high-quality graphene (Gr) in a back-gated configuration. On the one hand, Gr enables redox electron transfer, avoids molecular degradation and permits operando spectroscopy. On the other hand, molecular electrode decoration shifts the Gr Dirac point (VDP) to neutrality and generates a photocurrent in the Gr electron conduction regime. Benefitting from this... - [Newsletter GDR NEMO #2](https://gdr-nemo.fr/newsletter-gdr-nemo-2/): Voici l’édition N°2 de la newsletter Bonne lecture   - [Quasi-1D Polymer Semiconductor – Diarylethene Blends: High Performance Optically Switchable Transistors](https://gdr-nemo.fr/quasi-1d-polymer-semiconductor-diarylethene-blends-high-performance-optically-switchable-transistors/): Optically switchable field-effect transistors (OSFETs) are non-volatile photonic memory devices holding a great potential for applications in optical information storage and telecommunications. Solution processing of blends of photochromic molecules and π-conjugated polymers is a low-cost protocol to integrate simultaneously optical switching and charge transport functions in large-area devices. However, the limited reversibility of the isomerization of photochromic molecules due to steric hindrance when embedded in ordered polymeric matrices represents a severe limitation and it obliges to incorporate as much as 20% in weight of the photochromic component, thereby drastically diluting the electronic function, limiting the device performance. Herein, a comparative study... - [offre de Post-doc CEA](https://gdr-nemo.fr/offre-de-post-doc-cea/): une offre de Post-doc sur 12 mois au CEA pour la fabrication d’une cellule de Purcell. contact : Ludovic Tortech, CEA de Saclay, 0169086556, ludovic.tortech@cea.fr sujet - [Field and Thermal Emission Limited Charge Injection in Au–C60–Graphene van der Waals Vertical Heterostructures for Organic Electronics](https://gdr-nemo.fr/field-and-thermal-emission-limited-charge-injection-in-au-c60-graphene-van-der-waals-vertical-heterostructures-for-organic-electronics/): Among the family of 2D materials, graphene is the ideal candidate as top or interlayer electrode for hybrid van der Waals heterostructures made of organic thin films and 2D materials due to its high conductivity and mobility and its inherent ability of forming neat interfaces without diffusing in the adjacent organic layer. Understanding the charge injection mechanism at graphene/organic semiconductor interfaces is therefore crucial to develop organic electronic devices. In particular, Gr/C60 interfaces are promising building blocks for future n-type vertical organic transistors exploiting graphene as tunneling base electrode in a two back-to-back Gr/C60 Schottky diode configuration. This work delves into... - [Journées du GDR OERA 2023](https://gdr-nemo.fr/journees-du-gdr-oera-2023/): Les prochaines journées du GDR OERA, qui auront lieu le 12 et 13 octobre 2023 à l’Hexagone, Campus de Luminy, Marseille. Voici les nouveautés principales de cette année : – l’accent sera mis sur la thématique “Green Electronics”, avec 4 présentations invitées étalées sur les deux premières demi-journées ; – le bureau du GDR fera une restitution à la communauté du travail d’analyse prospectif réalisé pour le livre blanc OERA ; – le nouveau club des industriels OERA sera également présenté ; – une session “étudiants” sera organisée le 13 après-midi par et pour les doctorants/post-doc, son programme sera diffusé sous... - [Experimental observation of the role of countercations in modulating the electrical conductance of Preyssler-type polyoxometalate nanodevices](https://gdr-nemo.fr/experimental-observation-of-the-role-of-countercations-in-modulating-the-electrical-conductance-of-preyssler-type-polyoxometalate-nanodevices/): Polyoxometalates are nanoscale molecular oxides with promising properties that are currently explored for molecule-based memory devices. In this work, we synthesize a series of Preyssler polyoxometalates (POMs), [Na⊂P5W30O110]14−, stabilized with four different counterions, H+, K+, NH4+, and tetrabutylammonium (TBA+). We study the electron transport properties at the nanoscale (conductive atomic force microscopy, C-AFM) of molecular junctions formed by self-assembled monolayers (SAMs) of POMs electrostatically deposited on the ultraflat gold surface prefunctionalized with a positively charged SAM of amine-terminated alkylthiol chains. We report that the electron transport properties of P5W30-based molecular junctions depend on the nature of the counterions; the low-bias current... - [Offre de these Moltech](https://gdr-nemo.fr/offre-de-these-moltech/): Le sujet porte sur l’élaboration des molécules cage permettant de modifier des surfaces par pour de la reconnaissance moléculaire. ApplicationAll applications should include a cover letter, a CV and at least one recommendation letter and should besent to sebastien.goeb@univ–angers.fr and christelle.gautier@univ–angers.fr. presentation - [offre de thèse ICMCB](https://gdr-nemo.fr/offre-de-these-icmcb/): Molecular electronics is the discipline that studies nano-electronic devices in which the charge transport occurs across a single molecule or a single layer of molecules, to perform simple or complex electronic functions. In recent years, the advent of Big Data, Artificial Intelligence (AI) and the Internet of Things (IoT) comes at a tremendous energetic cost, making it extremely important to develop new energy-efficient electronic technologies. One possible avenue to design devices with ultra-low energy consumption is the development of spintronic devices that rely on the ability to generate currents presenting an asymmetric population of spin up and spin down electrons. It... - [Offre these ITODYS](https://gdr-nemo.fr/offre-these-itodys/): L’objectif de ce projet de thèse est de développer de nouvelles jonctions moléculaires pour des applications en électronique moléculaire. Forts de notre expérience dans ce domaine, nous nous intéressons à l’optimisation de ces systèmes et notamment le rôle primordial des couches moléculaires. Il s’agira d’étudier différents systèmes moléculaires comportant soit des charges (complexes métalliques par ex) soit des ions insérés dans les couches moléculaires par électrochimie. Ce projet doctoral combine des processus redox au sein des couches et du transport électronique dans des systèmes tout solide. Il est essentiel d’optimiser ces deux processus pour atteindre de meilleures performances. Le sujet proposé... - [Manipulation of the magnetic state of a porphyrin-based molecule on gold: From Kondo to quantum nanomagnet via the charge fluctuation regime](https://gdr-nemo.fr/manipulation-of-the-magnetic-state-of-a-porphyrin-based-molecule-on-gold-from-kondo-to-quantum-nanomagnet-via-the-charge-fluctuation-regime/): By moving individual Fe-porphyrin-based molecules with the tip of a scanning tunneling microscope in the vicinity of the elbow of the herringbone-reconstructed Au(111) containing a Br atom, we reversibly and continuously control their magnetic state. Several regimes are obtained experimentally and explored theoretically: from the integer spin limit, through intermediate magnetic states with renormalized magnetic anisotropy, until the Kondo-screened regime, corresponding to a progressive increase of charge fluctuations and mixed valency due to an increase in the interaction of the molecular Fe states with the substrate Fermi sea. Our study demonstrates the potential of utilizing charge fluctuations to generate and tune... - [Growth and local electronic properties of Cobalt nanodots underneath graphene on SiC(0001)](https://gdr-nemo.fr/growth-and-local-electronic-properties-of-cobalt-nanodots-underneath-graphene-on-sic0001/): The coupling of graphene with a ferromagnetic material opens opportunities for technological innovations in spintronics. To obtain this coupling it is necessary to control the elaboration of interfaces at the atomic scale. Here, we present results on cobalt intercalation between graphene and a buffer layer supported on a SiC(0001) substrate. As a result, we obtain cobalt islands covered by graphene whose local electronic properties are measured by scanning tunneling microscopy and spectroscopy. These islands reveal two very distinct shapes and properties. Small-islands with atomic height and very narrow size distribution and, more interestingly, flat cobalt nanodots lower than one nanometer high, that are encapsulated by graphene. Compared to a graphene... - [Surface symmetry effect on the charge transfer at the black, blue, and green phosphorene/graphene interfaces](https://gdr-nemo.fr/surface-symmetry-effect-on-the-charge-transfer-at-the-black-blue-and-green-phosphorene-graphene-interfaces/): In the present study, a comparative prediction of atomic and electronic structure of black, blue, and green phosphorene/graphene heterostructures is presented using Density Functional Theory (DFT). The lowest total and interaction energies and highest charge transfer correspond to the blue phosphorene/graphene interface, followed by black and green phosphorene/graphene interfaces. This trend is the same for monolayer, AA-, and AB-stacked bilayer graphene. However, the charge transfer is more important to AB-stacked bilayer graphene at the interface with black and green phosphorene than to AA-stacked bilayer graphene. On another hand, for the charge transfer is more important from AA-stacked bilayer graphene to blue... - [Offre de thèse IPCMS](https://gdr-nemo.fr/offre-de-these-ipcms/): offre de thèse a l’IPCMS a Strasbourg en spintronique moléculaire plus d’informations ici - [Postdoc position INSP (Paris) JUNE 2023](https://gdr-nemo.fr/postdoc-position-insp-paris-june-2023/): Postdoctoral Position in Theoretical Condensed Matter Physics or Theoretical Chemistry L’Institut des NanoSciences de Paris – Sorbonne Universitée Paris 75005 Applications are invited for a postdoctoral research position to explore the electronic structure and non-equilibrium photo-dynamics of novel low-dimensional organic materials. The work is particularly focussed on real-time dynamics and spatio-temporally resolved spectroscopy of excitons and spins, and their eventual exploitation in optoelectronic and quantum information applications. The post is part of the 4-year ANR project (ACCEPT) and a new 5-year project between the INSP Theory Group and experimentalists at the University of Cambridge (Rao Group). The initial phase of the... - [ELECMOL 2023 at Strasbourg](https://gdr-nemo.fr/elecmol-2023-at-strasbourg/): Molecular electronics is a widely interdisciplinary field at the frontiers of physics, chemistry, biology, electronics and their many interfaces. The design and use of electronic components and devices at the nanometer scale is a major challenge for the near future. Following the success of the previous editions, we are pleased to announce the 11h International Conference on Molecular Electronics: ElecMol (www.elecmol.com) which will be held at Faculté de Chimie of the Université de Strasbourg from the 27th of August to the 1st of September 2023. The conference covers eight topics in a single session programming with two plenary speakers per topic... - [PostDoc position at IEMN](https://gdr-nemo.fr/postdoc-position-at-iemn/): PostDoc position opening on the following topic: Elaboration and study of physical properties of graphene-based nanostructures The discovery of new 2D materials with original electronic band structures has initiated a tremendous interest for studying how further modification of their morphology can affect these physical properties. One of the main objectives has been to find alternatives to conventional top-down manufacturing of tailored graphene-based structures originally demonstrating semimetal electronic properties. The bottom-up approach using on-surface reaction of molecular precursor’s proved to be an efficient method for growth of one- and two-dimensional graphenic architectures on metal surfaces (e.g., via Ullmann coupling and cyclo-dehydrogenation). Following... - [21ème colloque Louis Néel](https://gdr-nemo.fr/21eme-colloque-louis-neel/): Le 13 au 16 novembre 2023 au domaine du Lazaret, à Sète se tiendra le 21ème colloque Louis Néel. Notez que cette année, le colloque sera aussi l’occasion de la réunion de lancement du PEPR SPIN, qui occupera l’après-midi du lundi 13 novembre. Vous trouverez toutes les informations utiles sur site internet du colloque : https://cln2023.sciencesconf.org/. Nous ouvrirons la soumission d’abstracts fin avril, pour une date limite de soumission le 16 juin 2023. Quant aux inscriptions, elles se termineront le 15 septembre 2023. Nous vous prions de relayer autant que possible ces informations autour de vous, et de nous excuser si vous... - [Activation, Transportation, and Reaction of Alkyl Radicals on a Si(111)-B Surface by a Scanning Tunneling Microscope Tip](https://gdr-nemo.fr/activation-transportation-and-reaction-of-alkyl-radicals-on-a-si111-b-surface-by-a-scanning-tunneling-microscope-tip/): On-surface chemistry is a powerful method to fabricate organic nanostructures with high precision onto different kinds of surfaces. On more inert surfaces, the lack of reactivity of the underlying substrate can be circumvented by using the electrons from a scanning tunneling microscope (STM) tip, as a stimulus, to produce the reactants of a targeted reaction. Here, another role of the STM tip is exploited in the fabrication of organic nanostructures. The STM tip is first used as a source of stimulating electrons to generate organic radicals on a Si(111)√3x√3R30°-B surface. Then, the STM tip acts as a conveyor to transfer radicals... - [Revealing conductance variation of molecular junctions based on an unsupervised data analysis approach](https://gdr-nemo.fr/revealing-conductance-variation-of-molecular-junctions-based-on-an-unsupervised-data-analysis-approach/): For single-molecule electrical junction conductance measurements the data analysis can be a key challenge because of the large datasets and large stochastic variation in junction conformation from one junction formation cycle to the next. Here, a data sorting algorithm was used to analyze the most dominant conductance groups for four molecular systems. The algorithm was applied to data sorting of molecular junctions repetitively formed during STM current-distance (I–s) retraction traces. The data was recorded using the STM I(s) technique to form molecular junctions, which avoids direct contact between the gold STM tip and gold substrate. The algorithm has been employed to identify... - [Hybrid molecular graphene transistor as an operando and optoelectronic platform.](https://gdr-nemo.fr/hybrid-molecular-graphene-transistor-as-an-operando-and-optoelectronic-platform/): Lack of reproducibility hampers molecular devices integration into large-scale circuits. Thus, incorporating operando characterization can facilitate the understanding of multiple features producing disparities in different devices. In this work, we report the realization of hybrid molecular graphene field effect transistors (m-GFETs) based on 11-(Ferrocenyl)undecanethiol (FcC11SH) micro self-assembled monolayers (μSAMs) and high-quality graphene (Gr) in a back-gated configuration. On the one hand, Gr enables redox electron transfer, avoids molecular degradation and permits operando spectroscopy. On the other hand, molecular electrode decoration shifts the Gr Dirac point (VDP) to neutrality and generates a photocurrent in the Gr electron conduction regime. Benefitting from this... - [offre de thèse à l'ENS Lyon](https://gdr-nemo.fr/offre-de-these-a-lens-lyon/): Metamorphic Approaches for On-surface Switching of Chiroptical Properties Here we propose to develop responsive supramolecular assemblies for which metamorphism will be associated with modulation of chiroptical properties. The main objective of this project is to design responsive chiroptical building blocks whose self-assembly at the liquid–solid interface can be controlled with optical or electrical stimulations. CONTACTDr. Denis Frath (CR CNRS), denis.frath@ens-lyon.fr , https://perso.ens-lyon.fr/denis.frathSupramolecular Chemistry Group (http://www.ens-lyon.fr/CHIMIE) - [Offre de Thèse IMDEA Nano](https://gdr-nemo.fr/offre-de-these-imdea-nano/): Le programme IMDEA NANO propose des offres de thèse à Madrid https://idealcofund-project.eu/phd/ Plus spécifiquement un projet ElectrocHemicAl enaBlIng Neuron-BacTeriA CommunicaTion (HABITAT) de nos collègues madrilènes https://idealcofund-project.eu/phd/phd-projects/electrochemical-enabling-neuron-bacteria-communication/ - [Dithienylethene-Based Single Molecular Photothermal Linear Actuator](https://gdr-nemo.fr/dithienylethene-based-single-molecular-photothermal-linear-actuator/): By employing a mechanically controllable break junction technique, we have realized an ideal single molecular linear actuator based on dithienylethene (DTE) based molecular architecture, which undergoes reversible photothermal isomerization when subjected to UV irradiation under ambient conditions. As a result, open form (compressed, UV OFF) and closed form (elongated, UV ON) of dithienylethene-based molecular junctions are achieved. Interestingly, the mechanical actuation is achieved without changing the conductance of the molecular junction around the Fermi level over several cycles, which is an essential property required for an ideal single molecular actuator. Our study demonstrates a unique example of achieving a perfect balance... - [Visualizing In-Plane Junctions in Nitrogen-Doped Graphene](https://gdr-nemo.fr/visualizing-in-plane-junctions-in-nitrogen-doped-graphene/): Controlling the spatial distribution of dopants in graphene is the gateway to the realization of graphene-based electronic components. Here, it is shown that a submonolayer of self-assembled physisorbed molecules can be used as a resist during a post-synthesis nitrogen doping process to realize a nanopatterning of nitrogen dopants in graphene. The resulting formation of domains with different nitrogen concentrations allows obtaining n–n’ and p–n junctions in graphene. A scanning tunneling microscopy is used to measure the electronic properties of the junctions at the atomic scale and reveal their intrinsic width that is found to be ≈7 nm corresponding to a sharp... - [Dirac Fermions in Blue Phosphorene Monolayer](https://gdr-nemo.fr/dirac-fermions-in-blue-phosphorene-monolayer/): 2D materials beyond graphene and in particular 2D semiconductors have raised interest due to their unprecedented electronic properties, such as high carrier mobility or tunable bandgap. Blue phosphorene is an allotrope of black phosphorene that resembles graphene as it presents a honeycomb structure. However, it is known to have semiconductor character and the crucial point is to determine whether this hexagonal phase of phosphorene presents Dirac fermions as in graphene. Here, the first compelling experimental evidence of Dirac fermions in blue phosphorene layer grown on Cu(111) surface is presented. The results highlight the formation of a highly ordered blue phosphorene sheet with... - [Offre de these Rennes](https://gdr-nemo.fr/offre-de-these-rennes/): Synthèse et Etude de Systèmes π-Conjugués pour l’Electronique Organique : Nouvelle génération de matrices hôtes pour OLEDs phosphorescentes. Le projet de thèse vise à synthétiser et à étudier (électrochimie, photophysique, modélisation moléculaire etc) de nouvelles générations de matrices π-conjugués PHC pour des applications dans le domaine des PhOLEDs émettrices de lumière bleue et de lumière blanche qui sont à l’heure actuelle les maillons faibles de la technologie. Ce projet se situe au premier plan international et sera effectué en collaboration avec l’Université de Soochow (Prof Z. Jiang, Chine) et l’Institut  l’Electronique et des Technologies du numéRique (IETR, Dr E. Jacques, Rennes)... - [Structural and electronic properties of Bi/Au(110)](https://gdr-nemo.fr/structural-and-electronic-properties-of-bi-au110/): Atomically thin bismuth films (2D Bi) are becoming a promising research area due to their unique properties and their wide variety of applications such as spintronics, electronic and optoelectronic devices. We report on the structural and electronic properties of Bi on Au(110), explored by low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. At a Bi coverage lower than one monolayer (1ML) various reconstructions are observed, we focus on Bi/Au(110)-c(2×2) reconstruction (at 0.5ML) and Bi/Au(110)-(3×3) structure (at 0.66ML). We propose models for both structures based on STM measurements and further confirm by DFT calculations. Egzona Neziri, Wei... - [7th Bordeaux Olivier Kahn Discussions, BOOK-D](https://gdr-nemo.fr/7th-bordeaux-olivier-kahn-discussions-book-d/): The scientific program will be broad, covering the interdisciplinary aspects of molecule-based electronics and magnetism through the chemistry, physic and theory of electron mobility, electron transfer or redox-non-innocence in organic molecules, metallo-organic compounds and devices. 7th Bordeaux Olivier Kahn Discussions, BOOK-D MOLECULE-BASED ELECTRONICS 15-17th may 2023 link - [workshop « Crossroad of Maxwell Demon »](https://gdr-nemo.fr/workshop-crossroad-of-maxwell-demon/): ESiM is organizing the 2-days international workshop «Crossroad of Maxwell Demon» at CEMES in Toulouse (France) on March 1-2, 2023. The workshop will focus on how the micro-reversibility principle applies to the mechanics of a single molecule and how can be possible ultimately to tackle the Maxwell demon using a well-designed single molecule. Intramolecular or quantum thermodynamics and single molecule motive power will be discussed, also considering which nano/micro-systems and electronic devices can reach the single object at the nanoscale (atom, molecule…), including cold trap experiments and theory with or without a supporting surface. link - [Quantum Advantage in a Molecular Spintronic Engine that Harvests Thermal Fluctuation Energy](https://gdr-nemo.fr/quantum-advantage-in-a-molecular-spintronic-engine-that-harvests-thermal-fluctuation-energy/): Recent theory and experiments have showcased how to harness quantum mechanics to assemble heat/information engines with efficiencies that surpass the classical Carnot limit. So far, this has required atomic engines that are driven by cumbersome external electromagnetic sources. Here, using molecular spintronics, an implementation that is both electronic and autonomous is proposed. The spintronic quantum engine heuristically deploys several known quantum assets by having a chain of spin qubits formed by the paramagnetic Co center of phthalocyanine (Pc) molecules electronically interact with electron-spin-selecting Fe/C60 interfaces. Density functional calculations reveal that transport fluctuations across the interface can stabilize spin coherence on the... - [Newsletter #1](https://gdr-nemo.fr/newsletter-1/): Première édition de la newsletter du GDR NEMO lien - [50 ans déjà ....](https://gdr-nemo.fr/50-ans-deja/): Cette nouvelle année marquera l’anniversaire du premier brevet déposé par IBM concernant l’électronique moléculaire. Retrouvez l’integralité du brevet - [Planar bridging an atomically precise surface trench with a single molecular wire on an Au(1 1 1) surface](https://gdr-nemo.fr/planar-bridging-an-atomically-precise-surface-trench-with-a-single-molecular-wire-on-an-au1-1-1-surface/): In a bridge configuration, a single graphene nanoribbon (GNR) is positioned with a picometer precision over a trench in between two monoatomic steps on an Au(1 1 1) surface. This GNR molecular wire adopts a deformed conformation towards the down terrace in between the two contact step edges. Using differential conductance dI/dV mapping from a low-temperature scanning tunneling microscope, it is  demonstrated how the electronic delocalization along GNR is cut at each contact by its down curvature. It points out the need to bring  conductive nanocontacts backside of the support for preserving the front side GNR planar conformation. Umamahesh Thupakula, Diego... - [Chaire de Professeur Junior](https://gdr-nemo.fr/chaire-de-professeur-junior/): Chaire de Professeur Junior à MOLTECH-Anjou L’Université d’Angers vient de proposer la création d’un poste de Chaire de Professeur Junior (CPJ) au Ministère de l’Enseignement Supérieur et de la Recherche pour soutenir l’activité du laboratoire MOLTECH–Anjou dans le domaine de la « Conception et caractérisation de dispositifs électroniques organiques ». L’objectif est de maintenir la dynamique actuelle et de diversifier la nature des composants fabriqués. Dans ce  contexte, le laboratoire MOLTECH–Anjou souhaite recruter un enseignant–chercheur pour prendre la responsabilité de l’élaboration des dispositifs électroniques et développer une nouvelle thématique en électronique organique tout en soutenant les recherches menées par les chimistes... - [Postdoc IEMN](https://gdr-nemo.fr/postdoc-iemn-2/): Evolving electronic transport in molecular switches / nanoparticles networks The EVOLMONET project funded by the National Research Agency over the period 2021-2024 in partnership with chemists of MOLTECH-Anjou, aims to develop nanoparticle-molecule networks with switchable molecules in order to implement reconfigurable reservoir computing hardware. In EVOLMONET, we will explore electron transport at high frequency and dynamics in nanoparticle-molecule networks made of Au nanoparticles functionalized by various types of novel molecular switches building blocks, tailored to exhibit event-driven evolving functionalities. We will address classes of switchable molecular system whose electronic properties are triggered by external stimuli (light, THz electromagnetic field or ionic... - [Probing the Effect of the Density of Active Molecules in Large-Area Molecular Junctions](https://gdr-nemo.fr/probing-the-effect-of-the-density-of-active-molecules-in-large-area-molecular-junctions/): The effect of the density of active molecules in molecular junctions (MJs) has been investigated by using a host/guest strategy. Mixed layers consisting of oligothiophene (BTB) encapsulated by β-cyclodextrin (BTB@β-CD) were generated. Cyclodextrins were then removed, and the pinholes generated were filled with BTB to obtain BTB@BTB films. MJs based on mixed BTB@β-CD and BTB@BTB layers, as well as single-component BTB MJs, were compared. The variation of ln J vs thickness is similar for all systems while the Jo of BTB@β-CD MJs is 20 times lower than that of BTB MJs. After β-cyclodextrin has been removed, and the pinholes filled, Jo increases and reaches the same value as for the BTB MJs, showing... - [Offre Postdoc IEMN](https://gdr-nemo.fr/postdoc-iemn/): Chercheur CDD (H/F) “Mesures SPM de magnéto-transport sur des nano-objets fonctionnalisés” Missions Development and implementation of nano-fabrication and local probe microscopy techniques to study the grafting, transport and magnetoresistance properties of nano-objects (NOs) functionalized by organic monolayers. Two families of molecules forming SAMs (self assembled monolayers) will be compared: single bonded (typically alkyl chains) and double bonded (typically phenyl groups) molecules with delocalized orbitals. Activities The candidate will be in charge of: (i) characterization by local probe microscopy (STM-AFM), mainly under ultra-high vacuum (UHV) for magneto-transport measurements; (ii) fabrication of Co NOs under vacuum and by standard clean room lithography processes... - [Artificial Graphene Spin Polarized Electrode for Magnetic Tunnel Junctions](https://gdr-nemo.fr/artificial-graphene-spin-polarized-electrode-for-magnetic-tunnel-junctions/): 2D materials offer the ability to expose their electronic structure to manipulations by a proximity effect. This could be harnessed to craft properties of 2D interfaces and van der Waals heterostructures in devices and quantum materials. We explore the possibility to create an artificial spin polarized electrode from graphene through proximity interaction with a ferromagnetic insulator to be used in a magnetic tunnel junction (MTJ). Ferromagnetic insulator/graphene artificial electrodes were fabricated and integrated in MTJs based on spin analyzers. Evidence of the emergence of spin polarization in proximitized graphene layers was observed through the occurrence of tunnel magnetoresistance. We deduced a... - [Offre post doc SU](https://gdr-nemo.fr/offre-post-doc-su/): The LISE (Laboratoire Interfaces et Systèmes Electrochimiques) and LRS (Laboratoire de Réactivité de Surface) laboratories are two associated research units of the CNRS (« Unités Mixtes de Recherche »), which are localized at Sorbonne Université, on the Jussieu campus, Paris 5th . They are one of the partner of the cubic project funded by the « Agence Nationale de la Recherche ». The electrodeposition of the functional molecules to lead thin–films and their characterizations will be carried out in these two neighbor laboratories. The other partners of the project are the IPCM (Institut Parisien de Chimie Moléculaire) also localized on the... - [Charge Transport Across Au–P3HT–Graphene van der Waals Vertical Heterostructures](https://gdr-nemo.fr/charge-transport-across-au-p3ht-graphene-van-der-waals-vertical-heterostructures/): Hybrid van der Waals heterostructures based on 2D materials and/or organic thin films are being evaluated as potential functional devices for a variety of applications. In this context, the graphene/organic semiconductor (Gr/OSC) heterostructure could represent the core element to build future vertical organic transistors based on two back-to-back Gr/OSC diodes sharing a common graphene sheet, which functions as the base electrode. However, the assessment of the Gr/OSC potential still requires a deeper understanding of the charge carrier transport across the interface as well as the development of wafer-scale fabrication methods. This work investigates the charge injection and transport across Au/OSC/Gr vertical... - [X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVOx nanoclusters](https://gdr-nemo.fr/x-ray-magnetic-dichroism-and-tunnel-magneto-resistance-study-of-the-magnetic-phase-in-epitaxial-crvox-nanoclusters/): Epitaxial clusters of chromium and chromium–vanadium oxides are studied by tunnel magneto-resistivity measurements, x-ray absorption spectrometry and circular magnetic circular dichroism. They turn out to carry a small magnetic moment that follows a super-paramagnetic behavior. The chromium ion contribution to this magnetization is mainly due to an original magnetic Cr2O3-like phase, whereas usual Cr2O3 is known to be anti-ferromagnetic in the bulk. For mixed clusters, vanadium ions also contribute to the total magnetization and they are coupled to the chromium ion spins. By measuring the dichroic signal at different temperatures, we get insight into the possible spin configurations of vanadium and... - [When Identification of the Reduction Sites in Mixed Molybdenum/ Tungsten Keggin-Type Polyoxometalate Hybrids Turns Out Tricky](https://gdr-nemo.fr/when-identification-of-the-reduction-sites-in-mixed-molybdenum-tungsten-keggin-type-polyoxometalate-hybrids-turns-out-tricky/): The mixed molybdenum/tungsten Keggin-type polyoxometalate (POM) hybrid (TBA)4[PW9Mo2O39{Sn(C6H4I)}] (TBA = tert-butylammonium) has been prepared by the reaction between [α-PW9Mo2O39]7– and [Cl3Sn(C6H4I)] in dried acetonitrile, in the presence of tetra-n-butylammonium bromide. A further coupling reaction affords the ferrocenyl derivative (TBA)4[PW9Mo2O39{Sn(C6H4)C≡C(C6H4)Fc}]. The POM hybrids have been thoroughly characterized by NMR and IR spectroscopies. Electrochemical analysis confirms their ease of reduction compared to the all-W analogue, albeit with a second reduction process occurring at a lower potential than in the all-Mo species. It is noteworthy that the second reduction is accompanied by an unusual red shift of the electronic absorption spectrum. Whereas there is... - [Single-crystalline nanoribbon network field effect transistors from arbitrary two-dimensional materials](https://gdr-nemo.fr/single-crystalline-nanoribbon-network-field-effect-transistors-from-arbitrary-two-dimensional-materials/): The last decade has seen a flurry of studies related to graphene nanoribbons owing to their potential applications in the quantum realm. However, little experimental work has been reported towards nanoribbons of other 2D materials. Here, we propose a universal approach to synthesize high-quality networks of nanoribbons from arbitrary 2D materials while maintaining high crystallinity, narrow size distribution, and straightforward device integrability. The wide applicability of this technique is demonstrated by fabricating molybednum disulphide, tungsten disulphide, tungsten diselenide, and graphene nanoribbon field effect transistors that inherently do not suffer from interconnection resistance. By relying on self-aligning organic nanostructures as masks, we... - [Elastic properties of moiré lattices in epitaxial two-dimensional materials](https://gdr-nemo.fr/elastic-properties-of-moire-lattices-in-epitaxial-two-dimensional-materials/): Unlike conventional two-dimensional (2D) semiconductor superlattices, moiré patterns in 2D materials are flexible and their electronic, magnetic, optical, and mechanical properties depend on their topography. Within a continuous+atomistic theory treating 2D materials as crystalline elastic membranes, we abandon the flat-membrane scenario usually assumed for these materials and address out-of-plane deformations. We confront our predictions to experimental analyses on model systems, epitaxial graphene, and MoS2 on metals and reveal that compression/expansion and bending energies stored in the membrane can compete with adhesion energy, leading to a subtle moiré wavelength selection and the formation of wrinkles. Alexandre Artaud1,2,3, Nicolas Rougemaille1, Sergio Vlaic4, Vincent... - [Offre Postdoc LPEM](https://gdr-nemo.fr/offre-postdoc-lpem/): The project aims to address the emergence of new coherent quantum states with possible topological properties in hybrids composed of magnetic molecules self-assemblies and superconductors. The electronic and structural properties at very low temperatures in ultra-high vacuum conditions will be studied by STM/STS and AFM associated with angle-resolved photoemission measurements. The postdoctoral candidate will join the Quantumspecs team and will be in charge of sample preparation and spectroscopy/microscopy measurements in tandem with thesis and master students. The contract is concluded for one year and is renewable for one year by agreement (salary: 2500-2800€/month depending on the candidate experience). Pre-requisites: a PhD... - [Photoredox Processes in the Aggregation and Gelation of Electron-Responsive Supramolecular Polymers Based on Viologen](https://gdr-nemo.fr/photoredox-processes-in-the-aggregation-and-gelation-of-electron-responsive-supramolecular-polymers-based-on-viologen/): Viologen-based ditopic bis-pyridinyl-triazole bidentate ligands self-assemble in the presence of palladium ions into supramolecular polymers whose structure is imposed by the directed formation of coordination bonds. Light-irradiation of these electron-responsive supramolecular materials triggers a photo-induced electron transfer yielding isolated π-radicals and dimers of radicals. The photoreduction events and the associated dimerization steps trigger a large-scale reorganization occurring within the supramolecular network yielding aggregates or gels depending on the irradiation conditions (power, duration). Detailed electrochemical, spectro-electrochemical and photochemical analyses were conducted to understand the mechanisms at stakes in these light-induced aggregation and gelation. Clément Roizard, Vivien Andrieux, Shaymaa Al Shehimy, Shagor Chowdhury,... - [Nanofloating gate modulated synaptic organic light-emitting transistors for reconfigurable displays](https://gdr-nemo.fr/nanofloating-gate-modulated-synaptic-organic-light-emitting-transistors-for-reconfigurable-displays/): The use of postsynaptic current to drive long-lasting luminescence holds a disruptive potential for harnessing the next-generation of smart displays. Multiresponsive long afterglow emission can be achieved by integrating light-emitting polymers in electric spiked transistors trigged by distinct presynaptic signals inputs. Here, we report a highly effective electric spiked long afterglow organic light-emitting transistor (LAOLET), whose operation relies on a nanofloating gate architecture. Long afterglow emission with reconfigurable brightness and retention time is observed upon applying specific positive gate voltage spiked. Conversely, when negative gate voltage stimulus is applied, these LAOLETs function as click-on display. Interestingly, upon endowing the device with... - [Tracking the Interaction between a CO-Functionalized Probe and Two Ag-Phthalocyanine Conformers by Local Vertical Force Spectroscopy](https://gdr-nemo.fr/tracking-the-interaction-between-a-co-functionalized-probe-and-two-ag-phthalocyanine-conformers-by-local-vertical-force-spectroscopy/): Intentionally terminating scanning probes with a single atom or molecule belongs to a rapidly growing field in the quantum chemistry and physics at surfaces. However, the detailed understanding of the coupling between the probe and adsorbate is in its infancy. Here, an atomic force microscopy probe functionalized with a single CO molecule is approached with picometer control to two conformational isomers of Ag-phthalocyanine adsorbed on Ag(111). The isomer with the central Ag atom pointing to CO exhibits a complex evolution of the distance-dependent interaction, while the conformer with Ag bonded to the metal surface gives rise to a Lennard-Jones behavior. By... - [Redox-controlled conductance of polyoxometalate molecular junctions](https://gdr-nemo.fr/redox-controlled-conductance-of-polyoxometalate-molecular-junctions/): We demonstrate the reversible in situ photoreduction of molecular junctions of a phosphomolybdate [PMo12O40]3− monolayer self-assembled on flat gold electrodes, connected by the tip of a conductive atomic force microscope. The conductance of the one electron reduced [PMo12O40]4− molecular junction is increased by ∼10, and this open-shell state is stable in the junction in air at room temperature. The analysis of a large current–voltage dataset by unsupervised machine learning and clustering algorithms reveals that the electron transport in the pristine phosphomolybdate junctions leads to symmetric current–voltage curves, controlled by the lowest unoccupied molecular orbital (LUMO) at 0.6–0.7 eV above the Fermi energy with ∼25% of... - [Extraction of Chemical Reactivity and Structural Relaxations of an Organic Dye from the Short-Range Interaction with a Molecular Probe](https://gdr-nemo.fr/extraction-of-chemical-reactivity-and-structural-relaxations-of-an-organic-dye-from-the-short-range-interaction-with-a-molecular-probe/): A CO-functionalized atomic force microscope tip is used to locally probe local chemical reactivity and subtle structural relaxations of a single phthalocyanine molecule at different stages of pyrrolic-H abstraction. Spatially resolved vertical force spectroscopy unveils a variation of the maximum short–range attraction between CO and intramolecular sites, which is interpreted as a measure for the local chemical reactivity. In addition, the vertical position of the point of maximum attraction is observed to vary across the molecules. These changes follow the calculated adsorption heights of the probed molecular atoms. Karl Rothe, Nicolas Néel, Marie-Laure Bocquet, Jörg Kröger J. Phys. Chem. Lett. 2022, 10.1021/acs.jpclett.2c02140 - [Encoding Information on the Excited State of a Molecular Spin Chain](https://gdr-nemo.fr/encoding-information-on-the-excited-state-of-a-molecular-spin-chain/): The quantum states of nano-objects can drive electrical transport properties across lateral and local-probe junctions. This raises the prospect, in a solid-state device, of electrically encoding information at the quantum level using spin-flip excitations between electron spins. However, this electronic state has no defined magnetic orientation and is short-lived. Using a novel vertical nanojunction process, these limitations are overcome and this steady-state capability is experimentally demonstrated in solid-state spintronic devices. The excited quantum state of a spin chain formed by Co phthalocyanine molecules coupled to a ferromagnetic electrode constitutes a distinct magnetic unit endowed with a coercive field. This generates a... - [Masters 2 Thesis Internship](https://gdr-nemo.fr/masters-2-thesis-internship/): IPCMS-DMONS Strasbourg - [Combined spin filtering actions in hybrid magnetic junctions based on organic chains covalently attached to graphene](https://gdr-nemo.fr/combined-spin-filtering-actions-in-hybrid-magnetic-junctions-based-on-organic-chains-covalently-attached-to-graphene/): We present a bias-controlled spin-filtering mechanism in spin-valves including a hybrid organic chain/graphene interface. Wet growth conditions of oligomeric molecular chains would usually lead, during standard CMOS-compatible fabrication processes, to the quenching of spintronics properties of metallic spin sources due to oxidation. We demonstrate by X-ray photoelectron spectroscopy that the use of a protective graphene layer fully preserves the metallic character of the ferromagnetic surface and thus its capability to deliver spin polarized currents. We focus here on a small aromatic chain of controllable lengths, formed by nitrobenzene monomers and derived from the commercial 4-nitrobenzene diazonium tetrafluoroborate, covalently attached to the... - [Negative Differential Resistance in Spin-Crossover Molecular Devices](https://gdr-nemo.fr/negative-differential-resistance-in-spin-crossover-molecular-devices/): We demonstrate, based on low-temperature scanning tunneling microscopy (STM) and spectroscopy, a pronounced negative differential resistance (NDR) in spin-crossover (SCO) molecular devices, where a FeII SCO molecule is deposited on surfaces. The STM measurements reveal that the NDR is robust with respect to substrate materials, temperature, and the number of SCO layers. This indicates that the NDR is intrinsically related to the electronic structure of the SCO molecule. Experimental results are supported by density functional theory (DFT) with nonequilibrium Green’s function (NEGF) calculations and a generic theoretical model. While the DFT+NEGF calculations reproduce NDR for a special atomically sharp STM tip, the... - [Offre Postdoc](https://gdr-nemo.fr/offre-postdoc/): Open Postdoctoral position: Characterization of electronic devices This project consists in the design and characterization of sensing devices with homemade carbonaceous materials. New hybrid materials with interesting electronic properties have been obtained recently. Their potential use to elaborate active elements for devices is now the subject of thorough investigations. After a proper choice of the configuration of the devices (resistor, transistor,…) and their fabrication, campaigns of experimental measurements will be run in order to evaluate the ability of these materials to serve as active components in such devices and deeply understand the way how they work. Starting as soon as possible... - [Journées Plénières](https://gdr-nemo.fr/journees-du-gdr/): 26-27 Septembre 2022 ## Pages - [Journées du GDR](https://gdr-nemo.fr/journees-du-gdr/): [vc_row][vc_column][vc_column_text]Toutes les informations concernant les prochaines journées plénières du GDR sont disponible à cette adresse : https://gdr-nemo.sciencesconf.org/ [/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_tta_accordion][vc_tta_section title=”Retour sur les Journées plénières du GDR 2023″ tab_id=”1725805269664-f7487a5c-8a21″][vc_column_text css=””]Le 16-18 Octobre 2023 s’est déroulée les deuxièmes journées plénières du GDR sur le site de l’IEMN à Lille. Nous avons été ravis de vous accueillir pour ces journées riches en enseignements et en collaboration. Les échanges scientifiques avec 28 communications orales et deux tables rondes ont permis de voir toute l’étendue du domaine et la complémentarité des uns et des autres. Merci a tous les sponsors financiers et a vous pour votre participation[/vc_column_text][vc_gallery][/vc_tta_section][vc_tta_section... - [Projets du GDR](https://gdr-nemo.fr/projets-du-gdr/): Liste des projets obtenus par les membres du GDR NEMO - [Chroniques du GDR](https://gdr-nemo.fr/chroniques-du-gdr/): [vc_row][vc_column][vc_tta_pageable no_fill_content_area=”true” active_section=”1″ pagination_style=”flat-round” css=”.vc_custom_1679395046976{padding-left: 10px !important;}”][vc_tta_section title=”Section 1″ tab_id=”1679394409856-1504d115-dc72″][vc_column_text]Retrouvez ici l’ensemble des chroniques scientifiques publiées par les membres du réseau #1 Chroniques du GDR NEMO Avril 2023 Sommaire : [/vc_column_text][vc_column_text css=”.vc_custom_1679395464449{padding-left: 30px !important;}”]– Détection électrique de la transition de spin de molécules  Amandine Bellec – Electroluminescence de molécules chargées adsorbées sur une surface métallique  Amandine Bellec – Approche moléculaire pour la fabrication de surfaces fonctionnalisées de Qubits moléculaires  Pascal Martin – Electropolymérisation itérative contrôlée  Neus Vila – Formation et dissociation induites par STM des liaisons au sein d’une molécule  Stéphane Lenfant – Synthèse de nanographène sur surface semi-conductrice  Stéphane Campidelli... - [Politique de confidentialité](https://gdr-nemo.fr/politique-de-confidentialite/): Qui sommes-nous ? L’adresse de notre site est : http://gdr-nemo.fr. Médias Si vous téléversez des images sur le site, nous vous conseillons d’éviter de téléverser des images contenant des données EXIF de coordonnées GPS. Les personnes visitant votre site peuvent télécharger et extraire des données de localisation depuis ces images. Cookies Si vous déposez un commentaire sur notre site, il vous sera proposé d’enregistrer votre nom, adresse e-mail et site dans des cookies. C’est uniquement pour votre confort afin de ne pas avoir à saisir ces informations si vous déposez un autre commentaire plus tard. Ces cookies expirent au bout d’un an. Si... - [Recherche](https://gdr-nemo.fr/recherche2/): [vc_row][vc_column][vc_column_text][/vc_column_text][/vc_column][/vc_row] - [Listes des partenaires](https://gdr-nemo.fr/partenaires/): [vc_row][vc_column][vc_column_text] Tour d’horizon des differents partenaires du GDR NEMO (m.a.j 12/12/2022) [/vc_column_text][vc_single_image image=”21413″ img_size=”large” alignment=”center”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text css_animation=”zoomIn” css=”.vc_custom_1685015354518{background-color: #fff1ed !important;}”] N° Laboratoire/Société Ville Institut CNRS section CNRS Contacts locaux Adresse web A ISCR Rennes, INC 13 Bruno Fabre Participants: K. Costuas iscr.univ-rennes1.fr/ B Moltech Anjou Angers INC 13 Tony breton moltech-anjou.univ-angers.fr C ICMMO Orsay, INC 12 Vincent Huc icmmo.u-psud.fr C ISMO Orsay, INP 04/13 Hamid Oughaddou ismo.universite-paris-saclay.fr/ C UMPhy Palaiseau, INP 03/08 Pierre Seneor / 
Richard Mattana cnrs-thales.fr C IRAMIS/NIMBE Saclay, INC 13 Vincent Derycke iramis.cea.fr/nimbe C IRAMIS/SPEC Saclay, INP 03 Yannick Dappe iramis.cea.fr/spec/ C ILV Versailles, INC 12 Emmanuel Allard ilv.uvsq.fr... - [Comité du GDR](https://gdr-nemo.fr/comite-du-gdr/): [vc_row][vc_column][vc_custom_heading text=”Description” font_container=”tag:h3|text_align:left”][vc_column_text] GDR NEMO n°2121 – Date de création 01/01/2022 Responsable :  MARTIN Pascal, ITODYS, UMR 7086, Email : pascal.martin@u-paris.fr Institut de rattachement : Institut de Chimie (INC) Instituts secondaires : Institut de Physique (INP)  –  Institut des sciences de l’ingénierie et des systèmes (INSIS) Sections : 13 – Chimie physique, théorique et analytique 3 – Matière condensée : structures et propriétés électroniques 8 – Micro et nanotechnologies, micro et nanosystèmes, photonique, électronique, électromagnétisme, énergie électrique Délégation principale: DR 01 – Ile-de-France Villejuif[/vc_column_text][vc_custom_heading text=”Membres du Bureau” font_container=”tag:h3|text_align:left”][/vc_column][/vc_row][vc_row][vc_column width=”1/4″][vc_column_text] Pascal Martin Directeur du GDR Laboratoire ITODYS UMR 7086 Université Paris Cité [/vc_column_text][/vc_column][vc_column width=”1/4″][vc_column_text]... - [Thematiques du GDR](https://gdr-nemo.fr/thematiques-du-gdr/): [vc_row][vc_column][vc_column_text]L’Electronique Moléculaire est un domaine de recherches riche et vaste, à la convergence de différentes branches scientifiques et techniques. Nous avons donc choisi de développer ce GDR selon les axes thématiques suivants : image Axe 1 : Systèmes molécule unique, mémoires et switches : l’axe 1 sera consacré à la caractérisation des propriétés électroniques de la molécule unique jusqu’à un assemblage défini de molécules pour la démonstration de mémoires, d’interrupteurs, de capteurs, de diodes et transistors, de fils moléculaires, de vannes de spin ou encore d’interférences quantiques. image Axe 2 : Jonctions à plus large échelle, mémoires et switches : l’axe 2 sera consacré à la... - [Offres](https://gdr-nemo.fr/offres/): [vc_row][vc_column][vc_basic_grid post_type=”post” max_items=”10″ grid_id=”vc_gid:1648817929552-5e2e8b6b-abf2-8″ taxonomies=”5″][vc_column_text] [/vc_column_text][/vc_column][/vc_row] - [L'agenda](https://gdr-nemo.fr/lagenda/): [vc_row][vc_column][vc_column_text][calendar id=”133″][/vc_column_text][/vc_column][/vc_row] - [L'actualité](https://gdr-nemo.fr/lactualite/): [vc_row][vc_column][vc_basic_grid post_type=”post” max_items=”10″ grid_id=”vc_gid:1675935330465-58c73932-e9ae-5″ taxonomies=”22″][/vc_column][/vc_row][vc_row][vc_column][vc_column_text][calendar id=”133″][/vc_column_text][/vc_column][/vc_row] - [Présentation](https://gdr-nemo.fr/recherche/): [vc_row][vc_column][vc_column_text][/vc_column_text][/vc_column][/vc_row] - [Accueil](https://gdr-nemo.fr/): [vc_row css=”.vc_custom_1648678510058{padding-top: -100px !important;}”][vc_column][vc_custom_heading text=”Edito” font_container=”tag:h3|text_align:left|color:%23081e30″ google_fonts=”font_family:Allan%3Aregular%2C700|font_style:400%20regular%3A400%3Anormal” css=”.vc_custom_1685715844284{border-bottom-width: 1px !important;border-bottom-color: #58a3bb !important;border-bottom-style: solid !important;border-radius: 1px !important;}”][vc_column_text css=”.vc_custom_1649864102258{padding-top: 15px !important;}”] Reposant sur un besoin croissant de stockage, de matériaux pour le stockage ou encore de technologies innovantes, les recherches pour l’électronique de demain sont cruciales avec deux tendances drastiques à savoir la faible consommation d’énergie et l’évolution au-delà de la technologie 10 nm. Dans ce contexte, la mission du GDR NEMO (New Molecular Electronics) est de fédérer la communauté française gravitant autour de l’Electronique Moléculaire et d’apporter une plus grande visibilité à la recherche française dans ce domaine. Face à une compétition... - [Publications](https://gdr-nemo.fr/publications/): [vc_row][vc_column][vc_basic_grid post_type=”post” max_items=”-1″ style=”load-more” items_per_page=”16″ element_width=”3″ gap=”10″ item=”21627″ btn_color=”default” grid_id=”vc_gid:1685716082381-8561b477-70a3-0″ taxonomies=”66″ el_class=”vignette_publication”][/vc_column][/vc_row] [comment]: # (Generated by Hostinger Tools Plugin)