Departament d'Electrònica: Enviaments recents
Ara mostrant els elements 61-80 de 100
Noves estructures LTCC i HTCC per a sensors de pressió capacitius i per a sensors lambda de tipus resistiu
La tecnologia thick film pot definir-se com el procés on es du a terme la creació de dipòsits de circuits impresos en un substrat de ceràmica rígida mitjançant la tècnica de la serigrafia. Les pastes que s’utilitzen per ...
Caracterización por espectroscopia Raman de semiconductores Cu2ZnSnS4 para nuevas tecnologías fotovoltaicas
El trabajo se ha centrado en el análisis del compuesto Cu2ZnSnS4 (CZTS) mediante la técnica de espectroscopia de dispersión Raman, para una mayor optimización de los procesos de crecimiento de capas absorbedoras y la ...
Development of a multichannel integrated circuit for Silicon Photo-Multiplier arrays readout
The aim of this thesis is to present a solution for the readout of Silicon Photo-Multipliers (SiPMs) arrays improving currently implemented systems. Using as a starting point previous designs with similar objectives a novel ...
Treatments and Analysis of C-sp(2) nanomaterials
Carbon can be found or synthesised in different arrangements, each one with its particular properties. Curiously, the main building block of the majority of these structures (graphene) was first isolated in 2004 by A.K ...
Towards High Performance Nanostructured Thermoelectric Materials. A Bottom-Up Approach
En esta tesis se usa la estrategia de “Bottom-up” para la producción de materiales termoeléctricos nano-estructurados con alta eficiencia termoeléctrica. Esta técnica proporciona un amplio rango de posibilidades para ...
Development of a Complete Optical Microsystem for Particle Flow Detection
Esta tesis doctoral resume el trabajo realizado en el Departamento de Electrónica de la Facultad de Física, en la Universidad de Barcelona. El objetivo de la misma se centra en el diseño y fabricación de un microsistema ...
Electrochemical multi-sensors for biomedical applications
In this thesis, pH and potassium all-solid-state ISE based on potentiometry and bioimpedance sensors were designed, fabricated and integrated in a miniaturized array for its application in endoscopic surgery for in vivo ...
Integration of thin film based micro solid oxide fuel cells in silicon technology
In the last decades, there has been a huge proliferation of portable devices. Among them, consumer electronics such as mobile phones, music players, e-books, etc. are greatly extended. In order to provide these ...
Feasibility of Geiger-mode avalanche photodiodes in CMOS standard technologies for tracker detectors
The next generation of particle colliders will be characterized by linear lepton colliders, where the collisions between electrons and positrons will allow to study in great detail the new particle discovered at CERN in ...
Shape Control and Functional Properties of Copper Chalcogenide Colloidal Nanocrystals
The high quality CuxS nanocrystals were synthesized (Chapter 3) and the profound understanding and skills to prepare colloidal nanocrystals has been obtained and improved. It revealed a very simple synthetic route not only ...
Methods and tools for the design of RFICs
Ambient intelligence is going to focus the next advances in wireless technologies. Hence, the increasing demand on radio frequency (RF) devices and applications represents, not only a challenge for technological industries ...
Desenvolupament de microgeneradors inercials electromagnètics en tecnologia de microsistemes per a la recuperació d’energia mecànica residual de l’ambient
Aquesta tesi descriu el desenvolupament d’un microgenerador ressonant compatible amb la tecnologia de Si, especialment adequat per extreure energia mecànica residual de l’ambient. Aquesta mena de font “perpètua” d’energia ...
Solution Growth and Functional Properties of Vertically Aligned ZnO Nanowires
This dissertation has focused on three main topics: (1) Synthesis and characterization of ZnO:Cl NWs; (2) Hetero and homo nanostructures based on ZnO:Cl NWs for efficient PEC cells; (3) Photovoltaic performance of DSCs ...
Signal Processing Approaches to the Detection and Localization of Gas Chemical Sources using Partially Selective Sensors
Due to recent progress, higher-order chemical instrumentation provides large amounts of data which need automated processing in order to extract relevant information. In most cases, the raw signals or spectra are too complex ...
Construction of versatile biomolecule nano-platforms via Dip-pen Nanolithography and their application in bio-sensing and cell differentiation
The present thesis entitled “Construction of versatile biomolecule nano-platforms via Dip-pen Nanolithography and their application in bio-sensing and cell differentiation” aims at contributing to the field of Nanobiotechnology, ...
Optical grating coupler biosensor and biomedical applications
Biosensors are nowadays a powerful tool to enable the detection of specific biological interactions and to evaluate the concentration dependence in the response. A biosensor usually consists of three different parts: the ...
Nanoscale structural and mechanical properties of lipid bilayers in air environment / Propietats estructurals i mecàniques a la nanoescala de les bicapes lipídiques en aire
Cell membranes are 2-D heterogeneous fluid systems that show nanoscale structures of great interest because of its importance in membrane functions. Due to the inherent complexity of natural membranes, the study of model ...
Analysis and characterisation of biological samples in nano and microfluidic devices using AC and DC electric fields
The present thesis work titled “Analysis and characterisation of biological samples in nano and microfluidic devices using AC and DC electric fields” has as main objective study the effects that electric fields have biologic ...
Smart Chemical Sensors: Concepts and Application
This PhD thesis introduces basic concepts of smart chemical sensors design, which are afterwards applied to a particular application: the analysis of natural gas. The thesis addresses thus two sets of objective, a first ...
Optically active Si-rich Si3N4 Mu-cavities for sensoristic applications
In this thesis we have presented a thorough study on the optical and sensoristic properties of SRSN Mu-disks, in an isolated configuration and when coupled to a passive Si3N4 waveguide placed underneath. The whole ...
