A5088547851- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Dielectric materials and actuators
- Semiconductor materials and devices
- Electrospun Nanofibers in Biomedical Applications
- Molecular Junctions and Nanostructures
- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Organic Electronics and Photovoltaics
- Porphyrin and Phthalocyanine Chemistry
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Silicon Nanostructures and Photoluminescence
- Tribology and Wear Analysis
- biodegradable polymer synthesis and properties
- Metal and Thin Film Mechanics
- Advanced materials and composites
- Acoustic Wave Resonator Technologies
- Nonlinear Optical Materials Research
- Nanowire Synthesis and Applications
- Electrocatalysts for Energy Conversion
Politecnico di Milano
2020-2024
Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"
2024
This study elucidates the complex morphology and related spectroscopic response of poly(vinylidene fluoride- co -trifluoroethylene) copolymer, with 80% molar VDF content, namely P(VDF-TrFE) (80/20).
This work describes the synthesis and characterization of a series poly(2,6-dimethyl-1,4-phenylene oxide) (PPO)-based anion exchange membranes (AEMs), crosslinked with bis-imidazolium cations, investigated as potential ionic conductors for AEM fuel cells. PPO has excellent mechanical thermal properties, its backbone can be functionalized by means several possible routes. Among them, bromination was carried out quantitative control amount linked halogens. degrees 14 mol% 33 were employing new...
We present a conjugated copolymer designed as near-infrared (NIR) emitter for organic light-emitting diodes (NIR-OLEDs). The low bandgap donor-acceptor copolymer, comprising terthiophene derivative (3T) and benzothiadiazole (BT), is end-capped with bulky triphenyalmine (TPA) groups (3TBT-TPA). Compared the parent homologue capped simple phenyl rings, 3TBT-TPA shows enhanced solubility in solvents improved photoluminescence quantum yield thanks to reduced close packing of chains. 3TBT-TPA,...
A theoretical approach based on Periodic Boundary Conditions (PBC) and a Linear Combination of Atomic Orbitals (LCAO) in the framework density functional theory (DFT) is used to investigate molecular mechanism that rules piezoelectric behavior poly(vinylidene fluoride) (PVDF) polymer crystalline β-phase. We present several computational tests highlighting peculiar electrostatic potential energy landscape chains feel when they change their orientation by rigid rotation lattice cell....
Innovative nanostructured materials offer the possibility of enhancing tribological performance traditional like graphite and molybdenum disulfide (MoS2). In this study, scratch resistance two different copper powders, dendritic spherical, their composites with MoS2, nanometric graphene nanoplatelets was investigated. Metal powder metallurgy employed to produce composite 5 wt% 10 each solid lubricant. A ball milling step grind mix matrix lubricants. The use a cold press combined sintering in...
Vibrational spectroscopy allows the investigation of structural properties pristine and doped poly(3-hexylthiophene-2,5-diyl) (P3HT) in highly anisotropic materials, such as electrospun micro- nanofibers. Here, we compare several approaches for doping P3HT fibers. We have selected two different electron acceptor molecules dopants, namely iodine 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ). In case iodine, explored fibers according to procedures, i.e., by sequential both...
Germanium offers attractive optical properties despite being an indirect bandgap semiconductor, and new Ge-based devices are optimized for sensing photonics applications. In particular, considering the use of Ge as a sensor, improving its selectivity via organic grafting alternatives that still under investigation. this work, we focus on selective functionalization germanium in SiGe-patterned alloys using custom thiol-based luminescent molecule, namely...
Aligned polymer nanofibres are prepared by means of the electrospinning a chlorobenzene solution containing regioregular poly(3-hexyltiophene-2,5-diyl), P3HT, and poly(ethylene oxide), PEO. The PEO scaffold is easily dissolved with acetonitrile, leaving pure P3HT fibres, which do not show structural modification. Polymer either or without supporting polymer, effectively doped exposure to iodine vapours. Doping monitored following changes in doping-induced vibrational bands (IRAVs) observed...
In this study, we describe a host–guest system consisting of push–pull dye, the 4-amino-4′-nitroazobenzene (Disperse Orange 3, DO3), mixed with copolymer poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] as potential candidate for nonlinear optics (NLO) applications. We developed electrospun nanofibers polymer/dye blend, showing highly anisotropic molecular structure, where DO3 molecules are mostly oriented parallel to polymer chain, running in fiber axis direction. The technique...