Ara es mostren els items 1-20 de 36

    • A study of the degradation of organic solar cells 

      Azzouzi, Mohammed (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-05-20)
      Projecte Final de Màster Oficial
      Accés obert
      The field of small molecule solar cells has incredibly developed during the last decade. In fact, their efficiency increased from 3% in 2005 to 13% in 2016. However, they still face a major problem of stability: these cells ...
    • Caracterització de transistors orgànics de capa fina 

      Fernández Infante, Joan (Universitat Politècnica de Catalunya, 2016-01)
      Projecte/Treball Final de Carrera
      Accés obert
      This project deals with manufacture and analysis by electrical characterization of organic thin film transistors.
    • Carrier selective contact characterization using work function bender buffer layers 

      Capella Guardià, Francesc Xavier (Universitat Politècnica de Catalunya, 2022-06)
      Treball Final de Grau
      Accés obert
      2D materials emerge with a promising future for optoelectronics. First reported in 2011, MXenes have excellent properties such as metallic-like conductivity and high transmittance, thus, they can be used as transparent ...
    • Characterization of alternative carrier selective materials and their application to heterojunction solar cells 

      Gerling Sarabia, Luis Guillermo (Universitat Politècnica de Catalunya, 2017-11-15)
      Tesi
      Accés obert
      Crystalline silicon (c-Si) solar cells can be considered a highly industrialized and mature product with a record conversion efficiency of 26.6%, not far from the practical limit of 29.4% (for single p/n junction devices). ...
    • Contactos selectivos con una capa dipolar de Histidine para células solares 

      Fernández López, Naiara (Universitat Politècnica de Catalunya, 2020-06-29)
      Treball Final de Grau
      Accés obert
      Photovoltaic energies are essential for a transition from the current energy model towards one more sustainable and efficient. Today, pn junction technology dominates the world market, breaking records of efficiency and ...
    • Contactos selectivos de portadores basados en óxidos metálicos de transición para células solares de kesterita 

      Almache Hernández, Rosa Estefanía (Universitat Politècnica de Catalunya, 2023-06-29)
      Tesi
      Accés obert
      (English) In recent years, there has been an increasing need to find an environmentally friendly and low-pollution alternative for electricity production through solar energy absorption. Since 1950, photovoltaic researchers ...
    • Crystalline silicon Heterojunction solar cells 

      Pascual Sánchez, Denís (Universitat Politècnica de Catalunya, 2015-06-30)
      Treball Final de Grau
      Accés obert
      This work is a slight research on silicon heterojunction solar cells which have been of great interest recently. The aim is to span fabrication, characterization and simulation and to reach a broad but shallow knowledge ...
    • Development of a setup to measure photoconductivity of GeSn 

      Roset i Julià, Laura (Universitat Politècnica de Catalunya, 2019-07-12)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   École polytechnique fédérale de Lausanne
      Esta tesis se focaliza en el diseño y desarrollo de un equipo para mesurar la fotoconductividad del GeSn. El equipo consiste en una lámpara de halógeno y tungsteno, un monocromador, un espejo parabólico y un circuito óptico ...
    • Development of Vapor Deposition Processes for OLEDs 

      Lungu, Alexandru-Andrei (Universitat Politècnica de Catalunya, 2014-09-28)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Universität Stuttgart
      This bachelor thesis describes the development of vapour deposition processes for the creation of a warm white OLED. An OLED is a layer or a stack of organic materials situated between two electrodes, which emits light ...
    • Dielectric metal dielectric antireflection plasmonic layers 

      Ros Costals, Eloi (Universitat Politècnica de Catalunya, 2017-06)
      Treball Final de Grau
      Accés obert
      Dielectric/Metal/Dielectric structures using Transition Metal Oxides (TMOs) as a dielectric layer and very thin-film layers of metal will be fabricated and their opto-electrical properties evaluated. In particular, ...
    • Electrical characterization of CIGS solar cells 

      Xie, Tian (Universitat Politècnica de Catalunya, 2012-09)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Cu(In,Ga)Se2-based thin-film solar cells are one of the most promising photovoltaic technologies nowadays. Despite significant improvements to the performance of Cu(In,Ga)Se2 (CIGS) in recent decades, the electrical ...
    • Enhanced photocatalytic hydrogen production through the use of selective contacts 

      Anglada I Autet, Miquel (Universitat Politècnica de Catalunya, 2023-10-12)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Grup de recerca en Nanoenginyeria de materials aplicats a l'energia (NEMEN)
      The uncontrolled and increasing greenhouse gas emissions to the atmosphere, and the continuous alerts from the scientific community about the potential unprecedented and utterly negative impacts global warming could lead ...
    • EV Charger Integration with a Solar PV System: Techno-Economic Analysis of Different Scenarios for Single-Family House Case 

      Demirhan, Serap (Universitat Politècnica de Catalunya, 2022-06-09)
      Projecte Final de Màster Oficial
      Accés obert
      This thesis shows the most cost-efficient smart EV charging solutions for a single-family home charged with Solar PV, a pollution-free energy source. Two main topologies will be compared with two different solar system ...
    • Exploring innovative strategies for the synthesis of high efficiency kesterite-based solar cells 

      Navarro Güell, Alejandro (Universitat Politècnica de Catalunya, 2021-07-19)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
    • Exploring the development of CZGSe-based solar cells for advanced photovoltaic tandem applications 

      Maggi, Edoardo (Universitat Politècnica de Catalunya, 2022-07-26)
      Projecte Final de Màster Oficial
      Accés obert
      This work aims to explore and identify the most relevant parameters for the development of Cu2ZnGeSe4 (CZGSe)-based solar cells for advanced photovoltaic tandem applications. The main purpose of the study is the synthesis ...
    • Fabricación de un transistor orgánico utilizando CuPc como semiconductor 

      Caracciolo, Concettina (Universitat Politècnica de Catalunya, 2009-04-28)
      Projecte/Treball Final de Carrera
      Accés obert
    • Fabrication and characterization of organic solar cells 

      Maulidiani, Siti Winny Adya (Universitat Politècnica de Catalunya, 2013-09-06)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] Increasing total population in the world is leading to increase demand of energy. On the other hand, the availability of fossil fuels is limited. In order to solve the energy crisis, renewable energy especially ...
    • Fabrication and Characterization of Small Molecule Organic Solar Cells 

      Ayele Birhanu, Mulugeta (Universitat Politècnica de Catalunya, 2013-07)
      Projecte Final de Màster Oficial
      Accés obert
      With increasing price of natural gas and petroleum products and their environmental concerns, alternative energy sources are required i.e. renewable energy sources. Solar energy is the abundant form of renewable energy. ...
    • Fabrication and characterization of small molecule organic solar cells 

      Galindo Lorente, Sergi (Universitat Politècnica de Catalunya, 2013-02-01)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Durant l'última dècada, les cèl·lules solars orgàniques han atret molt l’atenció pel seu potencial com dispositius d'energia renovables degut al seu baix cost, flexibilitat i possibilitat de realitzar dispositius en grans ...
    • Fabrication and characterization of thin-film transistors with organic heterostructure of pentacene and PTCDI-C13 

      Tilman, Jérôme (Universitat Politècnica de Catalunya, 2010-06-28)
      Projecte/Treball Final de Carrera
      Accés obert
      This final thesis aims to advance research on the use of organic materials to produce devices such as OTFTs (Organic Thin-Film Transistors) or solar cells. Therefore, several OTFTs were performed to investigate the behavior ...