Física Aplicada: Envíos recientes
Mostrando ítems 241-260 de 556
Rheotaxial growth of semiconductor thin films
The efficiency of thin film solar cells depends to a large extent on the crystalline grain size. The increase of the latter can be obtained by rheotaxy, i.e. the growth of thin films on a liquid metallic layer. In this ...
Enhancing hydrogen evolution: Carbon nanotubes as a scaffold for Mo2C deposition via magnetron sputtering and chemical vapor deposition
This study presents an innovative approach to fabricating carbon nanotubes (CNTs) through magnetron sputtering and chemical vapor deposition (CVD). These CNTs serve as a robust structural scaffold for the deposition of ...
Characterization of high-intensity storms in the Metropolitan Area of Barcelona (2014–2022)
Urban coastal areas along the Mediterranean are exposed to short-duration convective rainfall, producing infrastructure disruptions and flood-related impacts. This study analyzes 45 rainfall episodes in the Metropolitan ...
Generalization of the Jared-Ennis method to complex transmitance objects for the generation of Synthetic Discriminant Functions
We present a simple method of constructing synthetic discriminant function filters optimized to take into account the modulation of liquid-crystal devices. This relaxation algorithm, a generalization of the Jared and Ennis ...
Influence of the dipolar interactions in the magnetization reversal asymmetry of hard-soft magnetic ribbons
Partial crystallization of the metallic glass Co66Si16B12Fe4Mo2 was performed by annealing at temperatures between 500 and 540°C for 10-20 min, resulting in crystallite volume fractions of (0.7-5)×10¿3 and sizes of 50-100 ...
Progress in single junction microcrystalline silicon solar cells deposited by Hot-Wire CVD
Hot-Wire Chemical Vapor Deposition has led to microcrystalline silicon solar cell efficiencies similar to those obtained with Plasma Enhanced CVD. The light-induced degradation behavior of microcrystalline silicon solar ...
Multiplane Encoded Light-Sheet Microscopy for Enhanced 3D Imaging
Light-sheet microscopes have become the tool of choice for volumetric imaging of large samples. Based on a wide-field acquisition scheme, they are capable of optical sectioning at diffraction-limited resolution and minimal ...
Procedures for the measurement of the extinction cross section of one particle using a Gaussian beam
Two procedures for the measurement of the extinction cross section (ECS) of one particle using a slightly focused Gaussian beam have been introduced and numerically tested. While the first one relies on previously introduced ...
Transverse and longitudinal components of the propagating and evanescent waves associated to radially-polarized nonparaxial fields
A comparison is established between the contributions of transverse and longitudinal components of both the propagating and the evanescent waves associated to freely propagating radially polarized nonparaxial beams. Attention ...
Optical forces induced by metal nanoparticle clusters
The strong field localization generated between closely placed metal particles excited by electromagnetic radiation induces intense forces on small polarizable objects. In this study we investigate the optical forces that ...
Influence of Co-Sputtered Ag:Al Ultra-Thin Layers in Transparent V2O5/Ag:Al/AZO Hole-Selective Electrodes for Silicon Solar Cells
As optoelectronic devices continue to improve, control over film thickness has become crucial, especially in applications that require ultra-thin films. A variety of undesired effects may arise depending on the specific ...
Chiral symmetry breaking induced by energy dissipation
Spontaneous chiral symmetry breaking is observed in a wide variety of systems on very different scales, from the subatomic to the cosmological. Despite its generality and importance for a large number of applications, its ...
Electron tunneling in heavily In-doped polycrystalline CdS films
The electrical properties of heavily In‐doped polycrystalline CdS films have been studied as a function of the doping level. The films were prepared by vacuum coevaporation of CdS and In. Conductivity and Hall measurements ...
Substrate influence on the properties of doped thin silicon layers grown by Cat-CVD
We present structural and electrical properties for p- and n-type layers grown close to the transition between a-Si:H and nc-Si:H onto different substrates: Corning 1737 glass, ZnO:Al-coated glass and stainless steel. ...
Yttrium oxide passivation of porous silicon for improved photoluminescence and optoelectronic properties
This paper reports on the effect of yttrium oxide as a novel treatment to improve the photoluminescence intensity and stability of porous silicon (PS). Yttrium oxide (Y2O3) was incorporated into the PS layers by impregnation ...
Three-dimensional polarimetric integral imaging under low illumination conditions
Conventional polarimetric imaging may perform poorly in photon-starved environments. In this Letter, we demonstrate the potential of integral imaging and dedicated algorithms for extracting three-dimensional (3D) polarimetric ...
The hydrometeorological forecasting in the framework of the european project FLASH
The principal objective of the European Project FLASH (Observations, Analysis and Modeling of Lightning Activity in Thunderstorms, for use in Short Term Forecasting of Flash Floods) is the improvement of flash flood ...
Magneto-optical Kerr effect in laser-patterned La2/3Sr1/3MnO3 epitaxial thin films
In this study, we have performed magneto-optical Kerr effect (MOKE) measurement on epitaxial La2/3Sr1/3MnO3 thin films containing artificial interfaces created by laser-patterning the SrTiO3 substrate. The observed increase ...
Structural and high-pressure properties of rheniite (ReS2) and (Re,Mo)S2
Rhenium disulfide (ReS2), known in nature as the mineral rheniite, is a very interesting compound owing to its remarkable fundamental properties and great potential to develop novel device applications. Here we perform ...
Surface passivation of crystalline silicon by Cat-CVD amorphous and nanocrystalline thin silicon films
In this work, we study the electronic surface passivation of crystalline silicon with intrinsic thin silicon films deposited by Catalytic CVD. The contactless method used to determine the effective surface recombination ...
