A5090809404- Graphene research and applications
- 2D Materials and Applications
- Topological Materials and Phenomena
- Surface and Thin Film Phenomena
- Advanced Chemical Physics Studies
- Plasmonic and Surface Plasmon Research
- Chalcogenide Semiconductor Thin Films
- Electron and X-Ray Spectroscopy Techniques
- Quantum and electron transport phenomena
- Semiconductor materials and devices
- Catalytic Processes in Materials Science
- Advanced Thermoelectric Materials and Devices
- Electrocatalysts for Energy Conversion
- MXene and MAX Phase Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Thermal properties of materials
- Solar-Powered Water Purification Methods
- Molecular Junctions and Nanostructures
- Catalysis and Oxidation Reactions
- Nanopore and Nanochannel Transport Studies
- Membrane Separation Technologies
- Photonic and Optical Devices
- Carbon Nanotubes in Composites
- Advancements in Battery Materials
Polytechnic University of Turin
2025
University of L'Aquila
2018-2024
Baker Hughes (United States)
2024
Intel (United States)
2024
Engineering (Italy)
2024
National Cheng Kung University
2022-2023
National Nuclear Energy Commission
2023
Instituto de Pesquisas Energéticas e Nucleares
2023
Institute for Microelectronics and Microsystems
2019-2022
National Interuniversity Consortium of Materials Science and Technology
2021-2022
Thermoplasmonic effects notably improve the efficiency of vacuum membrane distillation, an economically sustainable tool for high-quality seawater desalination. Poly(vinylidene fluoride) (PVDF) membranes filled with spherical silver nanoparticles are used, whose size is tuned aim. With addition plasmonic in membrane, transmembrane flux increases by 11 times, and, moreover, temperature at interface higher than bulk temperature.
The first room-temperature terahertz (THz)-frequency nanodetector exploiting a 10 nm thick flake of exfoliated crystalline black phosphorus as an active channel field-effect transistor, is devised. By engineering and embedding planar THz antennas for efficient light harvesting, the technological demonstration phosphorus-based device described.
Topological insulators (TIs) represent a novel quantum state of matter, characterized by edge or surface-states, showing up on the topological character bulk wave functions. Allowing electrons to move along their surface, but not through inside, they emerged as an intriguing material platform for exploration exotic physical phenomena, somehow resembling graphene Dirac-cone physics, well exciting applications in optoelectronics, spintronics, nanoscience, low-power electronics, and computing....
Abstract Water and energy are two strategic drivers of sustainable development, intimately interlaced vital for a secure future humanity. Given that water resources limited, whereas global population demand exponentially growing, the competitive balance between these resources, referred to as water-energy nexus, is receiving renewed focus. The desalination industry alleviates stress by producing freshwater from saline sources, such seawater, brackish or groundwater. Since last decade, market...
The ability to convert light into an electrical signal with high efficiencies and controllable dynamics, is a major need in photonics optoelectronics. In the Terahertz (THz) frequency range, its exceptional application possibilities data rate wireless communications, security, night-vision, biomedical or video-imaging gas sensing, detection technologies providing efficiency sensitivity performances that can be "engineered" from scratch, remain elusive. Here, by exploiting inherent thermal...
Abstract Recent years have witnessed rapid progresses made in the photoelectric performance of two‐dimensional materials represented by graphene, black phosphorus, and transition metal dichalcogenides. Despite significant efforts, a photodetection technique capable for longer wavelength, higher working temperature as well fast responsivity, is still facing huge challenges due to lack best among bandgap, dark current, absorption ability. Exploring topological with nontrivial band transport...
Topological insulators are innovative materials with semiconducting bulk together surface states forming a Dirac cone, which ensure metallic conduction in the plane. Therefore, topological represent an ideal platform for optoelectronics and photonics. The recent progress of science technology based on enables exploitation their huge application capabilities. Here, we review achievements optoelectronics, photonics, plasmonics insulators. Plasmonic devices photodetectors wide energy range,...
Transition-metal dichalcogenides showing type-II Dirac fermions are emerging as innovative materials for nanoelectronics. However, their excitation spectrum is mostly unexplored yet. By means of high-resolution electron energy loss spectroscopy and density functional theory, here, we identify the collective excitations (3D plasmons) in PtTe_{2} single crystals. The observed plasmon long-wavelength limit ∼0.5 eV, which makes suitable near-infrared optoelectronic applications. We also...
We demonstrate that, in contrast to most two-dimensional materials, ultrathin flakes of InSe are stable under ambient conditions. Despite their stability, InSe-based nanodevices show an environmental p-type doping, suppressed by capping with hexagonal boron nitride. By means transport experiments, density functional theory and vibrational spectroscopy, we attribute the doping assumed uncapped atmosphere decomposition water at Se vacancies. have estimated site-dependent adsorption energy O2,...
In this review, we present the applications of thermoplasmonics in membrane processes. We discuss influence heat capacity solvent, amount plasmonic nanoparticles membrane, intensity light source and transmembrane flow rate on increase permeability. Remarkably, thermoplasmonic effects do not involve any noticeable loss rejection. Herein, consider application feasibilities, including fields, requirements feed, alternatives sources, promising scaling up issues.
Herein, we discuss the features, applications, open challenges and prospects of plasmonics with various classes two-dimensional semiconductors “beyond graphene”.
Artificial semiconductor heterostructures played a pivotal role in modern electronic and photonic technologies, providing highly effective mean for the manipulation control of carriers, from visible to Terahertz (THz) frequency range. Despite exceptional versatility, they commonly require challenging epitaxial growth procedures due need clean abrupt interfaces, which proved be major obstacle realization room-temperature (RT), high-efficiency devices, like source, detectors or modulators,...
Emergent topological Dirac semimetals afford fresh pathways for optoelectronics, although device implementation has been elusive to date. Specifically, palladium ditelluride (PdTe2) combines the capabilities provided by its peculiar band structure, with topologically protected electronic states, advantages related occurrence of high-mobility charge carriers and ambient stability. Here, we demonstrate large photogalvanic effects high anisotropy at terahertz frequency in PdTe2-based devices. A...
We have investigated plasmonic excitations at the surface of Bi_{2}Se_{3}(0001) via high-resolution electron energy loss spectroscopy. For low parallel momentum transfer q_{∥}, spectrum shows a distinctive feature peaked 104 meV. This mode varies weakly with q_{∥}. The behavior its intensity as function primary and scattering angle indicates that it is plasmon. At larger momenta (q_{∥}~0.04 Å^{-1}), an additional peak, attributed to Dirac plasmon, becomes clearly defined in spectrum....
Despite the considerable effort, fast and highly sensitive photodetection is not widely available at low-photon-energy range (~meV) of electromagnetic spectrum, owing to challenging light funneling into small active areas with efficient conversion an electrical signal. Here, we provide alternative strategy by efficiently integrating manipulating nanoscale optoelectronic properties topological Dirac semimetal PtSe2 its van der Waals heterostructures. Explicitly, realize strong plasmonic...
Near-field microscopy discloses a peculiar potential to explore novel quantum state of matter at the nanoscale, providing an intriguing playground investigate, locally, carrier dynamics or propagation photoexcited modes as plasmons, phonons, plasmon-polaritons phonon-polaritons. Here, we exploit combination hyperspectral time domain spectroscopy nano-imaging and detectorless scattering near-field optical microscopy, multiple terahertz frequencies, rich physics layered topological insulators...
Abstract The zero‐magnetic‐field nonlinear Hall effect (NLHE) refers to the second‐order transverse current induced by an applied alternating electric field; it indicates topological properties of inversion‐symmetry‐breaking crystals. Despite several studies on NLHE Berry‐curvature dipole in Weyl semimetals, direct conversion rectification is limited very low driving frequencies and cryogenic temperatures. photoresponse generated at room temperature can be useful for numerous applications...
Abstract The control of heat at the nanoscale via excitation localized surface plasmons in nanoparticles (NPs) irradiated with light holds great potential several fields (cancer therapy, catalysis, desalination). To date, most thermoplasmonic applications are based on Ag and Au NPs, whose cost raw materials inevitably limits scalability for industrial requiring large amounts photothermal as case desalination plants. On other hand, alternative nanomaterials proposed so far exhibit severe...
Abstract Seawater electrolysis (SWE) is proposed to be a promising approach green hydrogen (H 2 ) production but its large‐scale deployment faces challenges because of the anodic competing chlorine evolution reaction (CER) and high energy consumption. To address these challenges, innovative hybrid SWE systems have recently emerged, able mitigate interference CER substantially reduce electrical needed. Herein, preparation 2D layered PtTe nanosheets (e‐PtTe NSs) using liquid‐phase exfoliation...
Graphene epitaxially grown on Ru(0001) displays a remarkably ordered pattern of hills and valleys in Scanning Tunneling Microscopy (STM) images. To which extent the observed "ripples" are structural or electronic origin have been much disputed recently. A combination ultrahigh resolution STM images Helium Atom diffraction data shows that i) graphene lattice is rotated with respect to Ru ii) corrugation as determined from He substantially smaller (0.015 nm) than predicted (0.15 reported X-Ray...
The dispersion and the damping of sheet plasmon in a graphene monolayer grown on Pt(111) have been studied by using angle-resolved electron energy loss spectroscopy. We found that relation mode confined is linear, as consequence screening metal substrate. Present results demonstrate presence an underlying substrate could striking consequences propagation even case system which exhibits weak graphene-substrate interaction. Moreover, we Landau essentially occurs via interband excitations...