A5072379587- Superconducting and THz Device Technology
- Physics of Superconductivity and Magnetism
- Graphene research and applications
- Superconducting Materials and Applications
- Silicon Carbide Semiconductor Technologies
- ZnO doping and properties
- Magnetic properties of thin films
- Theoretical and Computational Physics
- Computational Physics and Python Applications
- Particle Detector Development and Performance
- Supercapacitor Materials and Fabrication
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- Semiconductor materials and interfaces
- Optical Coatings and Gratings
- Semiconductor materials and devices
- Electrohydrodynamics and Fluid Dynamics
- Photonic Crystals and Applications
- Surface and Thin Film Phenomena
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Advanced Photocatalysis Techniques
- Advancements in Battery Materials
- Nuclear Physics and Applications
- Superconductivity in MgB2 and Alloys
University of Genoa
2014-2025
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2024
University of Amsterdam
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2014-2023
University of Milano-Bicocca
2023
Institute of Materials for Electronics and Magnetism
2015-2016
Polytechnic University of Turin
2005-2014
Space (Italy)
2012-2014
Italian Institute of Technology
2012-2014
Ospedale "Floraspe Renzetti"
2014
A fast and low-cost sol–gel synthesis used to deposit a shell of TiO2 anatase onto an array vertically aligned ZnO nanowires (NWs) is reported in this paper. The influence the annealing atmosphere (air or N2) NWs preannealing process, before deposition, on both physicochemical characteristics photoelectrochemical (PEC) performance resulting heterostructure, was studied. efficient application ZnO@TiO2 core–shells for PEC water-splitting reaction, under simulated solar light illumination (AM...
Abstract Aqueous chemical growth of zinc oxide nanowires is a flexible and effective approach to obtain dense arrays vertically oriented nanostructures with high aspect ratio. Herein we present systematic study the different synthesis parameters that influence ZnO seed layer thus resulting morphological features free‐standing nanowires. We obtained homogeneous coverage transparent conductive substrates high‐aspect‐ratio nanowire (length/diameter ratio up 52). Such nanostructured vertical...
We are developing the Cryogenic AntiCoincidence detector (CryoAC) of ATHENA X-IFU spectrometer. It is a TES-based particle aimed to reduce background instrument. Here, we present result obtained with last CryoAC single-pixel prototype. based on 1 cm2 silicon absorber sensed by single 2mm x 1mm Ir/Au TES, featuring an on-chip heater for calibration and diagnostic purposes. have illuminated sample 55Fe (6 keV line) 241Am (60 radioactive sources, thus studying response accuracy at low energy....
The ability to engineer nearly perfect ultrathin oxide layers, up the limit of monolayer thickness, is a key issue for nanotechnological applications. Here we face difficult and important case MgO films on Ag(100), which no extended well-ordered layers could thus far be produced in limit. We demonstrate that their final morphology depends not only usual growth parameters (crystal temperature, metal flux, oxygen partial pressure), but also aftergrowth treatments controlling so neglected...
Flash nanoprecipitation (FNP) is a widely used technique to prepare particulate carriers based on various polymers, and it was proven be promising technology for the industrial production of drug loaded nanoparticles. However, up now, only its application hydrophobic compounds has been deeply studied encapsulation some strongly hydrophilic compounds, such as caffeine, remains challenge. Caffeine poly-ε-caprolactone (PCL) nanoparticles were produced in confined impinging jet mixer using...
Iridium is one of the most chemically stable materials and therefore suitable for high-performance TES detectors space applications, where long-term stability (spanning around5/10 years) required. Thanks to their high these could be employed end technological applications such as nuclear/particle physics, single photon X-ray detection. Studying <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T<sub>c</sub></i> modulation induced via surface...
Using a methylated Si precursor instead of tetraethoxysilane (TEOS), methyl-imogolite (Me–IMO), nanotube material with formula (OH)3Al2O3SiCH3 is obtained in place the standard imogolite (OH)3Al2O3SiOH (IMO).(21) Postsynthesis grafting outer surface Me–IMO 3-aminopropyltriethoxysilane (3-APS) yields new hybrid (Me–IMO–NH2), an entirely hydrophobic inner and largely aminated surface. In this paper, structure stability Me–IMO–NH2 are studied detail compared those by means (i) X-ray...
Abstract Graphene is usually considered a chemically inert material. Theoretical studies of CO adsorption on free‐standing graphene predict quite low energies (<0.1 eV). However, we show here by vibrational spectroscopy and scanning tunneling microscopy that the nondissociative chemisorption occurs at cold, pristine grown Ni(1 1 1). The adlayer remains stable up to 125 K, although some coverage survives flashes 225 K. This unexpected result explained qualitatively modification density...
The Cryogenic AntiCoincidence Detector (CryoAC) is a key element of the X-ray Integral Field Unit (X-IFU) on board future ATHENA observatory. It TES-based detector designed to reduce particle background instrument, thereby increasing its sensitivity. design driven by an end-to-end simulator which includes electro-thermal modelling and dynamics readout chain. Here, we present measurements carried out last CryoAC single pixel prototype, namely DM127, in order evaluate critical thermal...
In spite of the relevance ultrathin MgO films for study model systems as well technological applications, great difficulties have been found so far in growth extended, well-ordered, films. Combining scanning tunneling microscopy, X-ray photoemission spectroscopy, and high-resolution electron energy loss spectroscopy experiments with ab initio calculations, we demonstrate here that structure sub-monolayer grown on Ag(100) by reactive deposition is strongly affected not only conditions but...
By incorporating molecular copper iodide clusters of formula [Cu4I4L4] (L = PPh2(CH2)2CH3) into an UV-polymerizable acrylic resin, namely BEDA (Bisphenol-a-EthoxylateDiAcrylate), transparent and highly emitting photoluminescent composite materials have been synthesized. In these materials, the original luminescence properties cluster transparency processability matrix are combined. Study photopolymerization kinetics shows that incorporated in low concentration limited influence on...
Athena (advanced telescope for high-energy astrophysics) is an ESA large-class mission, at present under a re-definition “design-to-cost” phase, planned prospective launch L1 orbit in the second half of 2030s. It will be observatory alternatively focusing on two complementary instruments: X-IFU (X-ray Integral Field Unit), TES (TransitionEdge Sensor)-based kilo-pixel array which able to perform simultaneous high-grade energy spectroscopy (~3 eV@7 keV) and imaging over 4′ FoV (field view),...
The vibrational modes of clean MgO films are investigated vs film thickness by means high-resolution electron energy-loss spectroscopy. For thin (20--30 monolayers) we observe, in accord with the literature, Fuchs-Kliewer phonon at $677{\mathrm{cm}}^{\ensuremath{-}1}$ and Wallis mode $524{\mathrm{cm}}^{\ensuremath{-}1}.$ ultrathin standing wave optical phonons confined overlayer present, whose frequencies depend strongly on thickness. Comparison theoretical calculations for slabs a perfect...
The interest in thin and ultrathin oxide films is increasing rapidly due to the new properties many possible technological applications of such materials. In this frame interaction with water, a major constituent our atmosphere, an essential issue for better characterization film-based devices. We report here detailed high-resolution electron energy loss spectroscopy X-ray photoelectron study reactivity MgO grown on Ag(100) toward H2O. find that only OH groups are detected at 310 K, while...
Photoluminescent composite materials whose emission depends on the rigidity of hosting matrix were synthesized by dispersing molecular copper iodide clusters, [Cu4I4L4], in a series photopolymerizable matrices exhibiting different glass transition temperatures (Tg). These obtained blending at molar ratios two chemically similar acrylic monomers presenting flexibility. The kinetics photocuring process was followed Real Time FTIR and high conversion values achieved for all formulations...
Oxide-on-oxide systems are becoming increasingly important in nanocatalysis and surface engineering, because of the creation hybridized interfaces holding high reactivity selectivity toward oxidation reactions. Here we report on results a multitechnique science study conducted an oxide/oxide model system. By depositing increasing amounts vanadium oxide (VOx) titanium dioxide-rutile(110) substrate, were able to follow morphology state overlayer. Three growth modes detected: nanoclusters at...