A5083307923- Molecular Junctions and Nanostructures
- Organic Electronics and Photovoltaics
- Nanofabrication and Lithography Techniques
- Conducting polymers and applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Force Microscopy Techniques and Applications
- Block Copolymer Self-Assembly
- Magnetism in coordination complexes
- Crystallography and molecular interactions
- Fluid Dynamics and Thin Films
- Magnetic properties of thin films
- Nanowire Synthesis and Applications
- Nanomaterials and Printing Technologies
- Magnetic and transport properties of perovskites and related materials
- Quantum Dots Synthesis And Properties
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
- Surface and Thin Film Phenomena
- Surface Chemistry and Catalysis
- Electronic and Structural Properties of Oxides
- Organic Light-Emitting Diodes Research
- Advanced Memory and Neural Computing
- Liquid Crystal Research Advancements
- Lanthanide and Transition Metal Complexes
Institute of Nanostructured Materials
2016-2025
Institute of Structure of Matter
2014-2025
National Research Council
2021-2023
Consorzio Roma Ricerche
2015-2020
Scriba Nanotecnologie (Italy)
2010-2015
Institute for Microelectronics and Microsystems
2008-2014
National Academies of Sciences, Engineering, and Medicine
2011
Institut Català d'Investigació Química
2010
Universitat de València
2010
Université Libre de Bruxelles
2008
Hole mobility in organic ultrathin film field-effect transistors is studied as a function of the coverage. For layered sexithienyl films, charge carrier rapidly increases with increasing coverage and saturates at about two monolayers. This shows that first molecular layers next to dielectric interface dominate transport. A quantitative analysis spatial correlations second layer crucial, it provides efficient percolation pathways for carriers generated both layers. The upper do not actively...
The self-assembly of alpha,alpha'-linked sexithiophenes with chiral and achiral penta(ethylene glycol) chains attached at the alpha-positions terminal rings, that is, 2,2':5',2'':5'',2''':5''',2'''':5'''',2'''''-sexithiophene-5,5'''''-dicarboxylic acid-2S)-2-methyl-3,6,9,12,15-pentaoxahexadecyl ester (1) 2,2':5',2'':5'',2''':5'''',2''''':5''''',2'''''-sexithiophene-5,5'''''-dicarboxylic acid-3,6,9,12,15-pentaoxahexadecyl (2), respectively is described. Analysis UV/vis, fluorescence, circular...
Novel strategies forinformation storage technology rely upon multistable systems that can be controllably switched between different configurations of comparable free energy. Multistability is present in many molecular and supramolecular through a variety properties (conformations, redox
Well-defined π-conjugated oligomers play an important role in the field of organic electronics, because their precise chemical structure and conjugation length give rise to well-defined functional properties facilitate control over supramolecular organization. In this review, we present different complementary approaches for molecular assembly into structures on nanoscale, applied oligothiophenes as a typical conjugated system. We consider self-assembly solution, sublimation individual...
We report herein an efficient, fast, and simple synthesis of imine-based covalent organic framework (COF) at room temperature (hereafter, RT-COF-1). RT-COF-1 shows a layered hexagonal structure exhibiting channels, is robust, porous to N2 CO2 . The room-temperature has enabled us fabricate position low-cost micro- submicropatterns on several surfaces, including solid SiO2 substrates flexible acetate paper, by using lithographically controlled wetting conventional ink-jet printing.
Changing stripes: The spin-transition compound 1 can be nanopatterned by unconventional and soft lithography to give crystalline, well-oriented, μm-scale structures arranged in stripes on a silica surface. These findings have potential applications electronic devices information storage.
Spin crossover compounds are a class of functional materials able to switch their spin state upon external stimuli. They were proposed as potential candidates for several technological applications that require highly controlled thin films and patterns. Here we present critical overview the most important approaches film growth patterning spin-crossover compounds, giving special attention Fe(II) based molecules, which studied materials. We both conventional (Langmuir-Blodgett, constructive...
Abstract Molecular multifunctional materials have potential applications in many fields of technology, such as electronics, optics and optoelectronics, information storage, sensing, energy conversion storage. These are designed exhibit enhanced properties, at the same time endowed with functional groups that control their interactions, hence self‐organization, into a variety supramolecular architectures. Since most soluble, lithographic methods suitable for solutions attracting increasing...
Abstract Medical applications of nanoparticles (NPs) require understanding their interactions with living systems in order to control physiological response, such as cellular uptake and cytotoxicity. When NPs are exposed biological fluids, the adsorption extracellular proteins on surface NPs, creating so‐called protein corona, can critically affect cells. Here, effect coating silver (AgNPs) serum (SPs) its consequence cytotoxicity mouse embryonic fibroblasts shown. In particular,...
We demonstrate multi-modal sensing capabilities of short chain alcohols spin crossover compounds by integrating them into a micrometric TAG sensitive to the colour and birefringence.
Hydrogen production via water electrolysis defines the novel energy vector for achieving a sustainable society. However, true progress of given technology is hindered by sluggish and complex hydrogen evolution reaction (HER) occurring at cathodic side system where overpriced scarce Pt-based electrocatalysts are usually employed. Therefore, efficient platinum group metals (PGMs)-free to carry out HER with accelerated kinetics urgently demanded. In this scenario, molybdenum disulfide (MoS2)...
Silver nanoparticles (AgNPs) hold great promise in biomedical applications due to their unique properties and potential for specific tissue targeting. However, the clinical translation of nanoparticle-based therapeutics remains challenging, primarily an incomplete understanding how nanoparticle influence interactions at nano-bio interface, as well role surface-adsorbed proteins (i.e. protein corona) modulating nanoparticle-cell interactions. This study demonstrates that surface charge has a...
An attractive read: Magnetic Mn12 clusters are patterned by molding a dispersion in polymer matrix onto structured master (e.g., DVD). The protrusions of the replica surface disappear on exposure to solvent vapor, and concentrate at positions original protrusions. cluster distribution produces magnetic contrast, which can be imaged force microscopy (see picture).
We present a study on thin deposits and patterning of 1-D spin-crossover compounds Fe(II)-(L)(2)H](ClO(4))(3)·MeOH [L = 4'-(4'''-pyridyl)-1,2':6'1''-bis- (pyrazolyl) pyridine] (1) that exhibit reversible, thermally driven spin transition at room temperature. Micrometric rodlike crystals 1 silicon surfaces are achieved by drop casting solvent annealing. observed the crystallinity spin-transition properties critically depends deposition procedure. Furthermore, we proved processability using...
Functional supramolecular architectures for bottom-up organic nano- and microtechnology are a high priority research topic. We discovered new recognition algorithm, resulting from the combination of thioalkyl substituents head-to-head regiochemistry substitution, to induce spontaneous self-assembly sulfur overrich octathiophenes into crystalline fibers combining charge mobility intense fluorescence. The were grown on various types surfaces either as superhelices or straight rods depending...
We demonstrate the label-free and selective detection of interleukin-6 (IL-6), a key cell-signaling molecule in biology medicine, by integrating an OECT with immuno-affinity regenerated cellulose membrane. The objective membrane is to increase local concentration IL-6 at sensing electrode and, thereby, enhance device response for concentrations falling within physiological range cytokines. gate functionalized oligo(ethylene glycol)-terminated self-assembled alkanethiolate monolayer (SAM)...
Charge transport properties in organic semiconductors depend strongly on molecular order. Here we demonstrate field-effect transistors where drain current flows through a precisely defined array of nanostripes made crystalline and highly ordered molecules. The stripes are fabricated across the channel transistor by stamp-assisted deposition from solution. As solvent evaporates, capillary forces drive solution to form menisci under stamp protrusions. solute precipitates only regions is...
Controlling materials on multiple length scales is one of the most compelling issues in nanotechnology research today. Here we demonstrate that arrays nanometer-sized aggregates, each made a few hundred single-molecule magnets derived from Mn12 complexes, can be patterned large areas by self-organization assisted stamps surface dewetting regime. The scale imposed motif stamp protrusions, and smaller scales, viz., size distance molecular are controlled deposition growth phenomena occurring...
We present a novel fabrication technique, which we termed lithographically controlled wetting. A stamp is placed in contact with liquid thin film; this manner, capillary forces drive the to distribute only under protrusions of stamp. As solvent evaporates, deposited solute forms pattern on surface same length scale By carefully choosing experimental conditions, it possible downscale printed features relative size by at least factor 7, viz., several tens nanometers-wide nanostructures can be...