A5002852277- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Semiconductor Quantum Structures and Devices
- Quantum Dots Synthesis And Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanowire Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Transition Metal Oxide Nanomaterials
- Acoustic Wave Resonator Technologies
- ZnO doping and properties
- GaN-based semiconductor devices and materials
- Ion-surface interactions and analysis
- Laser-Ablation Synthesis of Nanoparticles
- Metal and Thin Film Mechanics
- Spectroscopy and Chemometric Analyses
- Advanced MEMS and NEMS Technologies
- Electronic and Structural Properties of Oxides
- TiO2 Photocatalysis and Solar Cells
- Semiconductor Lasers and Optical Devices
- Quantum and electron transport phenomena
- Integrated Circuits and Semiconductor Failure Analysis
- Electrochemical Analysis and Applications
- Advanced biosensing and bioanalysis techniques
- Chalcogenide Semiconductor Thin Films
Policlinico San Matteo Fondazione
2024
Istituti di Ricovero e Cura a Carattere Scientifico
2024
Institute for Microelectronics and Microsystems
2015-2024
National Research Council
2005-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
2002-2020
University of Salento
1998-2018
National Academies of Sciences, Engineering, and Medicine
2005-2012
Drexel University
2011
Innovation Engineering (Italy)
2002-2008
University of Tübingen
2003
Abstract For see ChemInform in Full Text.
Fe3O4/γ-Fe2O3 nanoparticles (NPs) based thin films were used as active layers in solid state resistive chemical sensors. NPs synthesized by high temperature solution phase reaction. Sensing NP monolayers (ML) deposited Langmuir-Blodgett (LB) techniques onto chemoresistive transduction platforms. The sensing ML UV treated to remove insulating capping. Sensors surface was characterized scanning electron microscopy (SEM). Systematic gas tests controlled atmosphere carried out toward NO2, CO,...
TiO2 microspheres (TMS) with perfect spherical morphology were synthesized by spray drying of a hydrothermally cured aqueous suspension nanoparticles. powders (TP) obtained the nanoparticle studied simultaneously to determine which was most efficient photocatalyst. SEM images and laser granulometry on TMS show diameter ranging from 2 10 μm. had high specific surface area after annealing as seen BET analyses. XRD analyses that consist anatase rutile crystalline phases where fraction increases...
Abstract Metallic nanostructures supporting Localized Surface Plasmon Resonances (LSPR) are characterized by their unique ability to control and manipulate light at the nanoscale. Noble metal nanostructures, such as gold demonstrating exhibit magneto-optic activity in presence of modulated magnetic field low intensity transversal configuration (T-MOKE). Validation experimental findings was achieved numerical simulations based on Finite Element Method (FEM) techniques. The developed models...
Aging-induced aggregation of the nanoparticles in colloidal solution indium hydroxide leads to formation micrometer particles form well-shaped blocks. As shown by high-resolution transmission electron microscopy and selected area diffraction, blocks have a polycrystalline nature composed small nanounits. After calcination at 400 °C, they consist cubic hexagonal In2O3. Semiconducting sensors, In2O3, show high sensitivity low levels ozone air.
This study reports on the fabrication and characterization of an event detection subsystem composed a flexible piezoelectric pressure sensor electronic interface to be integrated into implantable artificial pancreas (IAP) for diabetic patients. The developed is made AlN layer, sandwiched between two Ti electrodes, sputtered Kapton substrate, with preferential orientation along c-axis which guarantees best response. IAP intestinal wall-interfaced refilling module, able dock ingestible insulin...
A poly-(3-hexylthiophene) (P3HT)/[6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM) bilayer structure has been realized by single step matrix-assisted pulsed laser evaporation (ss-MAPLE) technique using the same solvent for both polymers under vacuum conditions. Our ss-MAPLE procedure allows fabrication of polymeric multilayer device stacks, which are very difficult to realize with conventional assisted deposition methods. proof concept P3HT/PCBM solar cell based on and characterized. This...
In this paper, shunt capacitive RF microelectromechanical systems (MEMS) switches are developed in III-V technology using tantalum nitride (TaN) and pentoxide (Ta <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">5</sub> ) for the actuation lines dielectric layers, respectively. A compositional, structural, electrical characterization of TaN Ta films is preliminarily performed, demonstrating...
Titanium oxide thin films have been deposited by thermal evaporation in vacuum and then analyzed before after a suitable annealing order to test their application NH3 gas-sensing technology. In particular, spectrophotometric conductivity measurements performed determine the optical electrical properties of titanium films. The structure morphology such material investigated high resolution electron microscopy small area diffraction.
In this work, we synthesized porous nanohydroxyapatite/collagen composite scaffold (nHA-COL), which resemble extracellular matrices in bone and cartilage tissues. Nano hydroxyapatite (nHA) was successfully nucleated to the collagen matrix using hen eggshell as calcium biogenic source. Porosity evaluated by apparent theoretical density measurement. of all scaffolds range 95-98%. XRD TEM analyses show purity size HA around 10 nm selected area electron diffraction (SAED) analysis reveals...
Use of Zn sponges has been recently proposed as an effective means limiting the shape change and dendrite formation issues, affecting anodes electrically rechargeable Zn-based batteries. This paper contributes to this field research with in situ X-ray computed microtomography (XCMT) monitoring morphological chemical changes undergone by Zn-sponge during electrochemical cycling. Starting from a pristine anode, fabricated discharged state, was first charged then subjected representative series...
A detailed structural and morphological investigation has been carried out by conventional transmission electron microscopy, high resolution microscopy nanodiffraction methods on vanadium oxide films obtained reactive rf sputter at a power discharge (1000 W) different O2/Ar ratio. Electrical characterization also performed in controlled atmosphere order to investigate the influence of NO2 oxidizing gas material conductance as function deposition parameters. strict relation between structure,...
We report the fabrication of libraries nanostructured TiO2 films with a gradient in nanoparticle crystalline phase and dimensions. By supersonic cluster beam deposition it is possible to produce rutile nanoparticles diameter smaller than 10nm spread them into co-deposited amorphous titania matrix. Upon thermal annealing nanocrystals act as growth seeds film spatially controlled rutile/anatase ratio. Films variation have been deposited on micropatterned substrate arrays chemoresistive sensors...
Co-electrodeposition of Mn/polypyrrole yields core–shell microparticles that, after pyrolysis, transform to MnO<sub>x</sub>nanoparticles with the desirable Mn/N/C ORR electroactive sites.
A novel biotechnological approach to the preparation of Ir-doped luminescent silica-based nanostructures is proposed availing use diatoms microalgae which generate highly nanostructured biosilica shells (frustules) by in vivo biomineralization orthosilicic acid. After incorporation a phosphorescent organometallic complex (Ir-1) Thalassiosira weissflogii diatom frustules (DFs), bulk functionalized are obtained isolation and proper ultrafine processing Ir-1-doped DFs. High-resolution...