A5090999153- 2D Materials and Applications
- Plasmonic and Surface Plasmon Research
- MXene and MAX Phase Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanowire Synthesis and Applications
- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Strong Light-Matter Interactions
- Copper-based nanomaterials and applications
- Graphene research and applications
- Quantum Dots Synthesis And Properties
- Molecular Junctions and Nanostructures
University of Genoa
2021-2025
Large area stacking of van der Waals heterostructure arrays, based on 2D Transition Metal Dichalcogenide semiconductors (TMDs), is achieved by an original physical deposition process utilizing Ion Beam Sputtering. Silica substrates endowed with periodically faceted nanoridges are fabricated using interference lithography and serve as templates for maskless TMD at glancing angles. This approach enables the creation laterally confined few-layer WS2 nanostripe arrays coated MoS2 films. The...
Nanofabrication of flat optic silica gratings conformally layered with two-dimensional (2D) MoS2 is demonstrated over large area (cm2), achieving a strong amplification the photon absorption in active 2D layer. The anisotropic subwavelength induce highly ordered periodic modulation layer, promoting excitation Guided Mode Anomalies (GMA) at interfaces We show capability to achieve broadband tuning these lattice modes from visible (VIS) near-infrared (NIR) by simply tailoring illumination...
The strategic field of renewable energy production and storage requires novel nanoscale platforms that can feature competitive solar conversion properties. Photochemical reactions promote storage, such as water splitting oxygen-hydrogen evolution reactions, play a crucial role in this context. Here, we demonstrate photoelectrochemical device based on large-area (cm2) self-organized Au nanowire (NW) arrays, uniformly coated with ultrathin TiO2 films. NW arrays act both transparent...
Abstract 2D transition metal dichalcogenide semiconductor (TMDs) nanocircuits are deterministically engineered over large‐scale substrates. This original additive nanolithography approach combines large‐area physical growth of TMDs layer with high resolution thermal‐scanning probe lithography, to reshape the ultra‐thin semiconducting layers at nanoscale level. The nanofabrication few‐layer MoS 2 nanostructures controlled thickness, grown in 2H‐semiconducting phase, is demonstrated as shown...
Large area MoS 2 –WS van der Waals heterostructures have been fabricated using a physical deposition process. The type-II band alignment promotes electro-optical photoconversion and enhances organic pollutant photodissociation.
We show flat-optics photon harvesting in large-area polymeric/MoS 2 nanogrooved templates. The strong optical confinement into the ultra-thin MoS boosts photobleaching of polluting dyes, paving way for realistic photoconversion applications.
Header Two-dimensional (2D) Transition Metal Dichalcogenide semiconductors (TMDs) are a promising platform in view of developing novel generation optoelectronics devices and renewable photon to energy conversion technologies. However new ultra-compact harvesting schemes urgently required mitigate their poor absorption properties. In this work we propose flat-optic solution where few layers MoS 2 film is conformally deposited on large area (cm ) nanogrooved template. The subwavelength...
Two-dimensional (2D) Transition Metal Dichalcogenide semiconductor (TMDs) nanocircuits are deterministically engineered over large-scale substrates. The original approach combines large-area physical growth of 2D TMDs layer with high resolution thermal - Scanning Probe Lithography (t-SPL), to reshape the ultra-thin semiconducting layers at nanoscale level. We demonstrate additive nanofabrication few-layer MoS2 nanostructures, grown in 2H-semiconducting TMD phase, as shown by their Raman...
The urgent environmental and energy challenges require novel solutions for efficient light harvesting conversion in new-generation ultra-thin devices. Plasmonic nanoantennas flat optics nanogratings can promote matter interaction at the nanoscale being very attractive photonics sensing applications. In this work we developed two trapping based on large-scale nanomaterials. first system is a (cm 2 ) plasmonic metasurface self-organized gold nanostripes. second periodic re-shaping of...