A5014944345- Metal and Thin Film Mechanics
- Gas Sensing Nanomaterials and Sensors
- Diamond and Carbon-based Materials Research
- ZnO doping and properties
- High-Temperature Coating Behaviors
- Semiconductor materials and devices
- Advanced materials and composites
- Microplastics and Plastic Pollution
- Analytical Chemistry and Sensors
- biodegradable polymer synthesis and properties
- Laser-induced spectroscopy and plasma
- Ga2O3 and related materials
- Quantum Dots Synthesis And Properties
- Ion-surface interactions and analysis
- Metal Alloys Wear and Properties
- Electronic and Structural Properties of Oxides
- Nanocomposite Films for Food Packaging
- Graphene and Nanomaterials Applications
- Copper-based nanomaterials and applications
- Bone Tissue Engineering Materials
- Electrospun Nanofibers in Biomedical Applications
- Electrocatalysts for Energy Conversion
- Electrodeposition and Electroless Coatings
- Mechanical stress and fatigue analysis
- Electrohydrodynamics and Fluid Dynamics
National Agency for New Technologies, Energy and Sustainable Economic Development
2011-2022
Institute of Non-ferrous and Rare Metals
2018
University of Salento
2007-2012
ENEA Brindisi Research Centre
2011
Institute for Microelectronics and Microsystems
2004-2008
Innovation Engineering (Italy)
2007
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
2007
We report on the temperature dependence of photoluminescence (PL) spectrum and PL relaxation dynamics for colloidal $\mathrm{Cd}\mathrm{Se}∕\mathrm{Zn}\mathrm{S}$ core/shell quantum dots (QDs) embedded in an inert polystyrene matrix. demonstrate that confinement energy QDs is independent temperature. The coupling with both acoustic optical phonons also studied. Quantum results a strong increase exciton--acoustic-phonon constant, up to...
We have studied the interactions in solid phase between a blue-light-emitting organic conjugated polymer {poly[(9,9-dihexylfluorenyl-2,7-diyl)-alt-co-(9,ethyl-3,6-carbazole)]} and colloidal CdSe∕ZnS core shell quantum dots. demonstrate by time resolved photoluminescence measurements that efficient Förster energy transfer takes place from acting as donor dots, acceptors. A radius of about 80±15Å is extracted analysis relaxation dynamics based on solution donor-acceptor coupled rate equations....
TiAlN/AlN multilayers are attracting great interest for the possibility to modulate their mechanical and tribological properties through variation of multilayer design. In this work TiAlN single layer, intermixed-multilayer nano-multilayer were prepared using a reactive magnetron sputtering system starting from targets TiAl Al. The aim is analyze how design affects thermal coatings. microstructure as-deposited annealed films has been studied X-ray diffraction. chemical composition deduced by...
Developing smart, environmentally friendly, and effective antibacterial surfaces is fundamental to contrast the diffusion of human infections diseases for applications in biomedical food packaging sectors. To this purpose, here we combine aluminum-doped zinc oxide (AZO) Ag grow nanostructured composite coatings on bioplastic polylactide (PLA) substrates. The AZO layers are grown by RF magnetron sputtering, then functionalized with atomic form sputtering nanoparticles supersonic cluster beam...
Porous scaffolds made of biocompatible and environmental-friendly polymer fibers with diameters in the nano/micro range can find applications a wide variety sectors, spanning from biomedical field to textiles so on. Their development has received boost last decades thanks advances production methods, such as electrospinning technique. Conferring antimicrobial properties these fibrous structures is primary requirement for many their applications, but addition agents by wet methods present...
Monazite is one of the most valuable natural resources for rare earth oxides (REOs) used as dopants with high added value in ceramic materials extreme environments applications. The complexity separation process individual REOs, due to their similar electronic configuration and physical–chemical properties, reflected products price environmental footprint. During last years, there was an increasing interest using different mixtures REOs temperature ceramics, particular ZrO2-based thermal...
Ion bombardment during thin film growth is known to cause structural and morphological changes in the deposited films, thus affecting their physical properties. In this work zirconium nitride films have been by ion assisted magnetron sputtering technique. The energy controlled varying voltage applied substrate range 0–25 V. ZrN are characterized for structure, surface roughness, oxygen contamination, optical reflectance electrical resistivity. With increasing crystallinity of enhanced with a...
The optical functions (complex dielectric function, complex index of refraction, and conductivity) sputtered zirconium nitride films are derived starting from reflectance measurements. Their evolution with the different bias voltages applied during growth is used to deduce information about variations in electronic structure influenced by a oxygen nitrogen content films. Improvement electrical conductivity observed at increasing voltage due reduction both contamination content. separation...
In this paper we report on the deposition and characterization of tin oxide (SnO2) nanoparticle thin films. The films were deposited by matrix-assisted pulsed laser evaporation (MAPLE) technique. SnO2 colloidal nanoparticles with a trioctylphosphine capping layer diluted in toluene concentration 0.2 wt% frozen at liquid nitrogen temperature. target was irradiated KrF (248 nm, τ = 20 ns) excimer (6000 pulses 10 Hz). silica (SiO2) ⟨1 0 0⟩ Si substrates submitted to morphological (high...
The optical response by NO2 gas adsorption at different concentrations has been investigated, room temperature, in ZnO nanostructured films grown controlled vapor phase deposition. variation (quenching) the photoluminescence signal from excitonic and defects bands, due to interactions between oxidizing molecules sample surface, detected dynamic responses calibration curves as a function of concentration have obtained analyzed for each band. We showed that sensing results larger band than...