Departament d'Electrònica: Recent submissions
Now showing items 6-25 of 100
New technologies and their characterisation for nanostructured SnO2 Gas sensor devices
La presente tesis se ha centrado en el desarrollo de nuevas tecnologías para el desarrollo de sensores de gas semiconductores. Por tal motivo se han desarrollado dos técnicas para el desarrollo de nanopartículas de ...
Modelling of the Chemical and Light Interactions in Individual Metal Oxide Nanowires for Sensing Applications
En la presente tesis se analizan desde el punto de vista de la modelización teórica los mecanismos de interacción de gases y luz con nanohilos individuales de óxidos metálicos. Desde este enfoque novedoso, se pretende ...
Electron Energy Loss Spectroscopy Solutions for Nanoscale Materials Science Problems
In the Transmission Electron Microscope (TEM), an incident electron suffers both elastic and inelastic scattering by the solid state thin sample that is being characterised. In the event of inelastic scattering, the incident ...
Study of cell response over nanopatterned ligands on diblock copolymer surfaces
Cells in tissues are exposed to extracellular signals that integrate and appropriately translate into specific responses. Receptors at the cell membrane recognize a variety of soluble ligands, extracellular matrix proteins ...
Integration of Si/Si-Ge nanostructures in micro-thermoelectric generators
Silicon and silicon-germanium nanostructures were grown, integrated, optimized and characterized for their application in thermoelectric generation. Specifically two kinds of nanostructures were worked: silicon and ...
Development of an advanced 3D culture system for human cardiac tissue engineering
Ischemic heart disease is a major cause of human death worldwide owing to the heart minimal ability to repair following injury. Other than heart transplantation, there are currently no effective or long-lasting therapies ...
Análisis dinámico de atmósferas con matrices de sensores mediante procesado de señal no-lineal
El presente trabajo se enmarca dentro de las tareas centradas en el campo de modelización y procesado de señal, desarrolladas en el Departament d’Electrònica de la Facultad de Física de la Universitat de Barcelona. En ...
Preparation of high efficiency Cu2ZnSn(S,Se)4solar cells based on a single-step sulfo-selenization process
Cu2ZnSn(S,Se)4 (CZTSSe) kesterite semiconductors have been proposed as a potential medium to long term replacement of Cu(In,Ga)(S,Se)2 (CIGS) chalcopyrites for sustainable cost-efficient thin film technologies compatible ...
Development of Cu2ZnSnSe4 Based Thin Film Solar Cells by PVD and Chemical Based Processes
Nowadays mono- and multicrystalline silicon have the highest market share of all PV technologies but thin film solar cells based on CdTe or Cu(In,Ga)Se2 (CIGS) absorbers recently show promising high power conversion ...
Compositional Engineering of Colloidal Nanoparticles for Energy Conversion
The main objective of this thesis focuses on compositional design and engineering colloidal NPs and their application in energy conversion. This principally included the synthesis and characterization of colloidal NPs, and ...
Nanoscale electrical characterization of biological matter at microwave frequencies
The microwaves electromagnetic properties, i.e. the complex permittivity, of single cells determine how this radiation is transmitted, reflected or absorbed by biological tissues. This information is important for the ...
Detecció d'estats inadequats per la conducció d'un vehicle a partir de la degradació del control dinàmic
Una de les principals causes d’accidents d’automòbil és l’estat inadequat del conductor. Diversos estudis situen entre el 16% i el 30% el nombre d'accidents de trànsit relacionats amb el cansament, fatiga, somnolència i ...
Development of electrochemical platforms for DNA sensing
The present doctoral thesis is framed in the research and development (R & D) project between a private biotechnology company of molecular diagnostics Genomica SAU, the Institute for Bioengineering of Catalonia (IBEC), the ...
Síntesis química de capas buffer para nuevas tecnologías de calcogenuros con aplicaciones fotovoltaicas
En éste trabajo de Tesis se presentan los resultados más relevantes obtenidos en el desarrollo de capas buffer de CdS y de capas buffer libres de cadmio (sulfuro de indio y sulfuro de zinc) preparadas mediante la técnica ...
Wideband pulse amplifiers for the integrated cameras of the Cherenkov Telescope Array
One type of photon detector is the photomultiplier tube (or PMT), most commonly used in Imaging Atmospheric Cherenkov Telescopes (IACTs). A PMT has a photoelectric cathode that absorbs light and emits an electron. A PMT ...
Bioimpedance monitoring system for pervasive biomedical applications
Nowadays, Point-of-Care (PoC) are making a shifting of the classical medical procedures and treatment protocols, enhancing the performance of medical surveillance in all the world. It is a reliable and very cost-effective ...
Routing algorithms for wireless sensor : networks based on the duty cycle of its components
Wireless sensor network is one of the most important topics in the current data transferring. In fact regarding to data gathering and transformation, cost effective is the top topic and optimum point, which every vendors ...
Efectes de la il·luminació sobre els òxids metàl·lics: aplicacions a sensors de gasos i fotoreducció de CO₂
La interacció de la llum amb els òxids metàl.lics (MOX's) semiconductors, sempre i quan l'energia dels fotons sigui superior a l'amplada de la banda prohibida, produeix un increment significatiu de la densitat de portadors ...
Advanced TEM imaging tools for materials science
Being able to directly relate the final properties with the intimate structure provides a unique insight into the functionality of materials and devices, especially when compared to the necessarily statistical nature of ...
Understanding the role of sensor diversity and redundancy to encode for chemical information in gas sensor arrays
Electronic noses (e-noses) have been utilized during the past three decades as general purpose instruments for chemical sensing. These instruments are inspired by natural olfactory systems, where fine odour discrimination ...
