Enginyeria Electrònica i Biomèdica: Recent submissions
Now showing items 241-260 of 781
Silicon quantum dots embedded in a SiO2 matrix: From structural study to carrier transport properties
We study the details of electronic transport related to the atomistic structure of silicon quantum dots embedded in a silicon dioxide matrix using ab initio calculations of the density of states. Several structural and ...
Spectroscopic ellipsometry study of Cu2ZnSnSe4 bulk crystals
Using spectroscopic ellipsometry we investigated and analyzed the pseudo-optical constants of Cu2ZnSnSe4 bulk crystals, grown by the Bridgman method, over 0.8-4.5 eV photon energy range. The structures found in the spectra ...
Inkjet‐Printed p‐NiO/n‐ZnO Heterojunction Diodes for Photodetection Applications
Transparent Conducting Oxides (TCOs) are an enticing family of optoelectronic materials which have been proven to increase efficiency when incorporated into perovskite light emitting diode (PE-LED) and organic OLED ...
A dataset of color QR codes generated using back-compatible and random colorization algorithms exposed to different illumination-capture channel conditions
Color QR Codes are often generated to encode digital information, but one also could use colors or to allocate colors in a QR Code to act as a color calibration chart. In this dataset, we present several thousand QR Codes ...
Organización espontánea de puntos cuánticos de InSb crecidos por ALMBE sobre substratos de InP
El crecimiento autoorganizado de puntos cuánticos de InSb sobre substratos de InP mediante epitaxia de haces moleculares ha sido caracterizado mediante microscopía electrónica de transmisión y microscopía de fuerzas atómicas ...
Site-selectively grown SnO2 NWs networks on micromembranes for efficient ammonia sensing in humid conditions
SnO2 NWs networks on heated micromembranes have been characterized as ammonia sensors. The approach allows achieving reproducible growth and stable and long-lasting ammonia sensors with site-specific grown SnO2 NWs. The ...
Gas sensing properties of catalytically modified WO3 with copper and vanadium for NH3 detection
Ammonia gas detection by pure and catalytically modified WO3 based gas sensor was analysed. The sensor response of pure WO3 to NH3 was not only rather low but also presented an abnormal behaviour, probably due to the ...
NO2 Measurements with RGB Sensors for Easy In-Field Test
We present a simple an inexpensive method to implement a Griess-Saltzman-type reaction that combines the advantages of the liquid phase method (high specificity, fast response time) with the benefits of a solid implementation ...
Cooperative Energy Harvesting-Adaptive MAC Protocol for WBANs
In this paper, we introduce a cooperative medium access control (MAC) protocol, named cooperative energy harvesting (CEH)-MAC, that adapts its operation to the energy harvesting (EH) conditions in wireless body area networks ...
Silicon nanocrystals as an enabling material for silicon Ppotonics
Silicon nanocrystals (Si-nc) is an enabling material for silicon photonics, which is no longer an emerging field of research but an available technology with the first commercial products available on the market. In this ...
A reusable smart interface for gas sensor resistance measurement
The advances of the semiconductor industry enable microelectromechanical systems sensors, signal conditioning logic and network access to be integrated into a smart sensor node. In this framework, a mixed-mode interface ...
Linear and nonlinear optical properties of Si nanocrystals in SiO2 deposited by plasma-enhanced chemical-vapor deposition
Linear and nonlinear optical properties of silicon suboxide SiOx films deposited by plasma-enhanced chemical-vapor deposition have been studied for different Si excesses up to 24¿at.¿%. The layers have been fully characterized ...
Growth, optical characterization, and laser operation of a stoichiometric crystal KYb(WO4)(2)
We present our recent achievements in the growing and optical characterization of KYb(WO4)2 (hereafter KYbW) crystals and demonstrate laser operation in this stoichiometric material. Single crystals of KYbW with optimal ...
Operational experience and commissioning of the Belle II vertex detector
The construction of the new accelerator at the Super Flavor Factory in Tsukuba, Japan, has been finalized and the commissioning of its detector (Belle II) has started. This new e+e machine (SuperKEKB) will deliver an ...
Low dark count geiger mode avalanche photodiodes fabricated in conventional CMOS technologies
Avalanche photodiodes operated in the Geiger mode present very high intrinsic gain and fast time response, which make the sensor an ideal option for those applications in which detectors with high sensitivity and velocity ...
Continuous spatial representations in the olfactory bulb may reflect perceptual categories
In sensory processing of odors, the olfactory bulb is an important relay station, where odor representations are noise-filtered, sharpened, and possibly re-organized. An organization by perceptual qualities has been found ...
Image Quality of Data Products of the High Resolution Telescope of the Polarimetric and Helioseismic Imager
The High Resolution Telescope (HRT) of the Polarimetric and Helioseismic Imager (SO/PHI) on-board the Solar Orbiter mission (SO) provides near diffraction limited observations of the solar surface. The HRT Refocus Mechanism ...
Signal and data processing for machine olfaction and chemical sensing: A review
Signal and data processing are essential elements in electronic noses as well as in most chemical sensing instruments. The multivariate responses obtained by chemical sensor arrays require signal and data processing to ...
Internal hydration properties of single bacterial endospores probed by electrostatic force microscopy
We show that the internal hydration properties of single Bacillus cereus endospores in air under different relative humidity (RH) conditions can be determined through the measurement of its electric permittivity by means ...
Caracterización estructural de capas epitaxiadas de InGaAs/InAlAs crecidas sobre substratos (111) de InP
Se ha analizado por microscopía electrónica en transmisión (TEM) la estructura de transistores HEMT basados en un pozo cuántico tensionado de InGaAs/InAlAs crecido sobre un sustrato {111} de InP. Se han observado dislocaciones ...
