A5056797560- Advanced Thermoelectric Materials and Devices
- Rare-earth and actinide compounds
- Magnetic and transport properties of perovskites and related materials
- Heusler alloys: electronic and magnetic properties
- Thermodynamic and Structural Properties of Metals and Alloys
- Intermetallics and Advanced Alloy Properties
- Thermal properties of materials
- Luminescence Properties of Advanced Materials
- Chalcogenide Semiconductor Thin Films
- Iron-based superconductors research
- Magnetic Properties of Alloys
- Quantum Dots Synthesis And Properties
- Gas Sensing Nanomaterials and Sensors
- Phase-change materials and chalcogenides
- Thermal Radiation and Cooling Technologies
- TiO2 Photocatalysis and Solar Cells
- Photochemistry and Electron Transfer Studies
- Electronic Packaging and Soldering Technologies
- Silicon Nanostructures and Photoluminescence
- Metallurgical and Alloy Processes
- Gold and Silver Nanoparticles Synthesis and Applications
- Innovative Energy Harvesting Technologies
- Perovskite Materials and Applications
- Dye analysis and toxicity
- Corporate Taxation and Avoidance
Institute of Condensed Matter Chemistry and Technologies for Energy
2024-2025
National Research Council
2024-2025
Shibaura Institute of Technology
2020-2024
Japan Society for the Promotion of Science
2023-2024
Saitama Prefecture
2021
University of Genoa
2018-2019
Kyushu Institute of Technology
2019
Toyota Technological Institute
2019
In the present study, for first time, aluminum-doped zinc oxide (AZO) thin films with nanoinclusions of amorphous carbon have been synthesized via spin coating, and thermoelectric performances were investigated varying aging period solution, procedure nanoparticles’ addition, annealing atmosphere. The addition nanoparticles has pursued to introduce phonon scattering centers reduce thermal conductivity. All samples showed a strong orientation along [002] crystallographic direction, even...
The crystallographic and transport properties of thin films fabricated by pulsed laser deposition belonging to the Smy(FexNi1-x)4Sb12filled skutterudite system were studied with aim unveil effect exerted temperature duration thermal treatments on structural thermoelectric features. importance annealing in Ar atmosphere up 523 K was recognized, treatment performed at 473 for 3 h selected as most effective improving material properties. With respect corresponding bulk compositions, a...
The effect of SnO2 addition (0, 1, 2, 4 wt.%) on thermoelectric properties c-axis oriented Al-doped ZnO thin films (AZO) fabricated by pulsed laser deposition silica and Al2O3 substrates was investigated. best performance obtained the AZO + 2% film grown silica, with a power factor (PF) 211.8 μW/m·K2 at 573 K room-temperature (300 K) thermal conductivity 8.56 W/m·K. PF same order magnitude as value reported for typical bulk material measurement conditions (340 μW/m·K2) while κ reduced about...
Filled skutterudites are currently studied as promising thermoelectric materials due to their high power factor and low thermal conductivity. The latter property, in particular, can be enhanced by adding scattering centers, such the ones deriving from dimensionality presence of interfaces. This work reports on synthesis characterization thin films belonging Smy(FexNi1−x)4Sb12-filled skutterudite system. Films were deposited under vacuum conditions pulsed laser deposition (PLD) method fused...
Filled skutterudite compounds Smy(Fe1−xNix)4Sb12 (nominal composition 0 ≤ x 0.56, 0.1 y 1.2) were synthesized under high pressure using a cubic anvil press. The samples characterized by X-ray diffraction, scanning electron microscopy with energy-dispersive spectrometry and probe microanalyzer. Thermoelectric properties of investigated in the temperature range 2–300 K. Seebeck coefficient exhibits feature p-type n-type conductors depending on Sm-filling ratio Fe/Ni content. highest...
Abstract Polymer nanocomposite coatings of solar photovoltaic cells that absorb ultraviolet (UV) radiation and convert it into visible near-infrared (NIR) light can increase the operational lifetime energy efficiency cells. We report a polymer spectrum converting layer (SCL) made colorless polyimide CORIN impregnated with nanoparticles (NPs) fluoride NaYF 4 doped three-valent ions Europium at molar concentration 60%. The NPs were nanocrystals (179 ± 35 nm in size) thermally stable hexagonal...
Iron-based superconductors are under study for their potential high-field applications due to excellent superconducting properties such as low structural anisotropy, large upper critical fields and field dependence of the current density. Between them, Fe(Se,Te) is simple be synthesized can fabricated a coated conductor through laser ablation on metallic templates. In order make all steps fast, we have applied spark plasma sintering technique synthesize bulk obtain quite dense polycrystals...
Thermoelectric materials have gained considerable attention in recent years due to their ability directly convert heat into electricity, making them a key focus the development of sustainable energy technologies [...]
The effect of varying the applied pressure during processing by spark plasma sintering (SPS) samples belonging to Sm (Fe Ni ) Sbsystem has been investigated evaluating power factor obtained filled skutterudite.A strong dependence both electrical conductivity and Seebeck coefficient on observed.The highest was detected at different pressures for compositions, being optimal value 180 MPa sample with x = 0.80, 400 0.50 0.63.Relying present results, a possible further improvement 0.63 enhancing...
The study of the wettability thermoelectric materials, as well search for most proper brazing alloys, is maximum importance to get one step closer realization a device. In this work, filled skutterudite Smy(FexNi1−x)4Sb12 by Sn and In-based alloys presented. Samples, having both p- n- characters were prepared conventional melting-quenching-annealing technique subsequently densified spark plasma sintering (SPS). Afterward, tests performed sessile drop method at 773 K 20 min. Scanning electron...
Abstract Transparent luminescent solar concentrator (LSC) windows with edge-attached photovoltaic (PV) cells have the potential for improving building efficiency without compromising aesthetics and comfort. Optimization of such requires an inexpensive simulator experimenting various designs. We report, first time to best our knowledge, a transparent LSC window in form plastic container filled colloid photoluminescent nanoparticles (NPs) organic solvent (1-propanol). The exemplary NPs were...
This paper describes a 24.8 μm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> on-chip CMOS digital temperature sensor core operable on 95 nW at the 200mV supply voltage. The target of this is IoT devices powered by energy harvesters with ultra-low output voltage such as thermoelectric generators. Unlike conventional ring-oscillator type sensor, proposed directly monitors time to store electrical charge into capacitance...
We report on polymer nanocomposite films with spectrum down-converting properties that can be transferred using pulsed laser deposition (PLD) silicon avalanche photodiodes (APD) for responsive and fast UV sensing. The proposed down-convertors use two types of nanoparticles (NPs) embedded in a colorless polyimide matrix: semiconductor CdSe/ZnS core-shell quantum dots (QDs) the QDs made rare-earth (RE) doped lead halide perovskites CsPbX<sub>3</sub> (X stands Br Cl). These NPs have efficient...