A5077549509- Perovskite Materials and Applications
- Solid-state spectroscopy and crystallography
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Organic Light-Emitting Diodes Research
- Luminescence Properties of Advanced Materials
- Organic Electronics and Photovoltaics
- TiO2 Photocatalysis and Solar Cells
- Electrochemical sensors and biosensors
- Advanced biosensing and bioanalysis techniques
- Optical properties and cooling technologies in crystalline materials
- Electrochemical Analysis and Applications
- Advanced Condensed Matter Physics
- Advanced Photocatalysis Techniques
- Crystal Structures and Properties
- Thermal Expansion and Ionic Conductivity
- Fullerene Chemistry and Applications
- Luminescence and Fluorescent Materials
- Crystallization and Solubility Studies
- Manufacturing Process and Optimization
- 2D Materials and Applications
- Anodic Oxide Films and Nanostructures
- Mechanical and Optical Resonators
- Forensic Toxicology and Drug Analysis
University of Verona
2022-2025
Institute of Molecular Science and Technologies
2017-2021
University of Perugia
2017-2021
We have developed a colloidal synthesis of nearly monodisperse nanocrystals pure Cs4PbX6 (X = Cl, Br, I) and their mixed halide compositions with sizes ranging from 9 to 37 nm. The optical absorption spectra these display sharp, high energy peak due transitions between states localized in individual PbX64- octahedra. These spectral features are insensitive the size particles agreement corresponding bulk materials. Samples composition exhibit bands that intermediate position those compounds....
Abstract Perovskite semiconductors are an attractive option to overcome the limitations of established silicon based photovoltaic (PV) technologies due their exceptional opto‐electronic properties and successful integration into multijunction cells. However, performance single‐ cells is largely limited by significant nonradiative recombination at perovskite/organic electron transport layer junctions. In this work, cause interfacial perovskite/C 60 interface revealed via a combination...
Identifying the composition of solvated iodoplumbate complexes that are involved in synthesis perovskites different solution environments is great relevance order to link type and quantity precursors final optoelectronic properties material. In this paper, we clarify nature these species equilibria by combining experimental analysis high-level theoretical calculations, focusing particular on DMSO DMF solvents, largely employed synthesis. The specific molecular interactions between solvent...
Tin is one of the most promising alternatives to lead make lead-free halide perovskites for optoelectronics. However, stability tin-based hindered by oxidation Sn(II) Sn(IV). Recent works established that dimethyl sulfoxide, which best-performing solvents processing perovskite, primary source tin oxidation. The quest a stable solvent could be game-changer in perovskites. Starting from database over 2000 solvents, we identified series 12 new suitable formamidinium iodide perovskite (FASnI3)...
Crystals in urinary sediment are commonly recognized structures, typically identified by a combination of crystal morphology and urine pH. In this paper, we present the first reported case EDDP (2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidene) crystals, primary metabolite methadone, 67-year-old male with hepatorenal syndrome. Routine urinalysis revealed numerous needle-shaped which prompted further investigation. Advanced techniques, including Raman spectroscopy mass spectrometry,...
Abstract Metal halide perovskites have raised huge excitement in the field of emerging photovoltaic technologies. The possibility fabricating perovskite solar cells (PSCs) on lightweight, flexible substrates, with facile processing methods, provides very attractive commercial possibilities. Nevertheless, efficiency values for devices reported literature typically fall short comparison to rigid, glass‐based architectures. Here, a solution‐processable fullerene derivative, [6,6]‐phenyl‐C61...
Within a decade, perovskite solar cells (PSCs) leaped to the forefront of photovoltaic research, rapidly moving toward industrial phase. Despite impressive progress in technology development and new efficiency records, there still remains large scope for further advancement. Utilization scalable deposition methods good control crystallization process, especially with industrially compatible fabrication protocols, require more understanding ascertain reproducible, large-format manufacturing....
Nano- and microplastic particles are a global emerging environmental issue that might pose potential threats to human health. The present work exploits artificial intelligence (AI) identify nano- microplastics in water by monitoring the interaction of sample with sensitive surface. An estrogen receptor (ER) grafted onto gold surface, realized on nonexpensive easy-to-produce plastic optical fiber (POF) platform order excite surface plasmon resonance (SPR) phenomenon, has been developed carry...
Molecularly imprinted polymers (MIPs) are synthetic receptors made by template-assisted synthesis. MIPs might be ideal for sensing devices, given the possibility to custom-design selectivity and affinity toward a targeted analyte their robustness ability withstand harsh conditions. However, synthesis of MIP is an inherently random process that produces statistical distribution binding sites, characterized variety affinities. This verified both bulk materials MIP's thin layers. In present...
ABX3 metal halide perovskites revolutionized the research and development of new optoelectronics, including solar cells light-emitting diodes. Processing polycrystalline thin films from precursor solutions is one core advantages these materials since it enables versatile cost-effective manufacturing. The perovskite film morphology, that is, continuous substrate coverage low surface roughness, paramount importance for highly efficient optoelectronic devices in general. Controlling chemistry...
Water is generally considered an enemy of metal halide perovskites, being responsible for their rapid degradation and, consequently, undermining the long-term stability perovskite-based solar cells. However, beneficial effects liquid water have been surprisingly observed, and synthetic routes including treatments shown to improve quality perovskite films. This suggests that interactions with perovskites precursors are far from completely understood, as appears play a puzzling dual role in...
We report on the exploitation of a new tetrazole-substituted 1,10-phenanthroline and 2,2'-bipyridine (bpy) ancillary ligand modified with an electron-donating group in cationic ruthenium complexes. This complex, placed between two electrodes without any polymer, demonstrates high efficiency near-infrared (NIR) electroluminescence (EL). The comparison bpy its methyl-substituted shows that Ru tetrazolate complex containing methyl groups exhibits red shift EL wavelength from 620 to 800 nm...
We employ a fine-tuned theoretical framework, combining ab initio molecular dynamics (AIMD), density functional theory (DFT), and time-dependent (TD) DFT methods, to investigate the interactions optical properties of iodoplumbates within low coordinative γ-butyrolactone (GBL) solvent environment, widely employed in perovskite synthesis. uncover extent GBL coordination PbI2 investigating its relation solvated properties. The approach has been further validated by comparison with experimental...
A Lewis base additive is used to stimulate vertical orientation and even the distribution of low dimensional perovskite crystallites, improving photovoltaic performance.
Controlled perovskite growth from solution is crucial for efficient optoelectronic applications and requires a deep understanding of the precursor chemistry. The so-called "chlorine route" to lead–iodide perovskite, using PbCl2 or MACl additive as precursor, frequently employed form homogeneous layers by retarding crystallization. To understand role chlorine-containing lead precursors in solution, we analyze chemical interaction PbI2 with commonly solvents (γ-butyrolactone (GBL),...
The synthesis and characterization of a family indene-C60 adducts obtained via Diels-Alder cycloaddition [4 + 2] are reported. new C60 derivatives include indenes with variety functional groups. These show lowest unoccupied molecular orbital energy levels to be at the right position consider these compounds as electron-transporting materials for planar heterojunction perovskite solar cells. Selected were applied into inverted (p-i-n configuration) device architectures, fabricated on flexible...
The 2D-perovskite (C 3 H 8 N 6 )[PbBr 4 ] shows white-light emission with room-temperature phosphorescence based on the strategy of heavy-atom-participated anion–π + interactions.
Metal–organic chemical vapor deposition has been applied to produce europium-doped BaF 2 thin films on silicon and quartz substrates. A combined experimental theoretical study proved the downshifting properties of film.
The presence of a 8% wt N^C^N-Pt( ii ) complex bearing mesityl groups on pyridines leads to an efficient blue-emitting OLED with CIE coordinates (0.13, 0.29).
Flexible perovskite solar cells triggered a vast interest within the scientific community, thanks to their broad commercialization prospects. However, stability of these devices still poses one major concerns on way rapid industrial deployment. Here, we demonstrate an effective strategy improve technical aspects this technology, improving reliability and efficiency values devices. We apply large organic ammonium molecules for modifying buried interface between hole-transporting layer (HTL)...
Dye-sensitized solar cells (DSCs) have gained great attention in recent years due to their low-cost fabrication, flexibility, and high power conversion efficiency. In a DSC, interfaces between the dye charge-transport materials, interface electrostatics becomes key factor determining overall performance of cell. Liquid-electrolyte-based DSCs suffer from low stability, electrolyte leakage, and, some cases, electrode corrosion. Replacing liquid with solid semiconducting material leads poor...
Solar cell absorbing layers made of metal-halide perovskites (MHPs) are usually deposited from solution phase precursors, which is one the reasons why these materials received huge research attention in last few years. A detailed knowledge chemistry critical to understand formation MHP thin films and thus control their optoelectronic properties reproducibility issues that affect synthesis. In this regard, concentration triiodide, I3-, factor known have an influence on regulating important...