Now showing items 21-36 of 36

    • Microscopic modelling of the optical properties of 2D perovskites 

      Feldstein Bofill, David (Universitat Politècnica de Catalunya, 2020-06)
      Bachelor thesis
      Open Access
      Covenantee:   Chalmers tekniska högskola
      This work focuses on the optical properties of a quasi-two-dimensional perovskite. Using the quantum formalism based on the density matrix and the second quantization operators we obtain mathematical expressions for ...
    • Modelización de un haz de rayos a través de una lente líquida 

      Calzada Salvia, Xavier (Universitat Politècnica de Catalunya, 2014-07-22)
      Bachelor thesis
      Open Access
      [ANGLÈS] This work is part of a larger project carried out by the Department of Electronic Engineering at the Polytechnic University of Catalonia, which aims to create prototypes of liquid lenses capable of varying its ...
    • Modification of ceria with enhanced catalytic properties 

      Navarro Acero, Pablo (Universitat Politècnica de Catalunya, 2019-06)
      Bachelor thesis
      Open Access
      Ceria has been studied during the last decades due to its unique properties and their corresponding applications. Is an important material in industry, state of the art energy research, optics and biomedicine, among other ...
    • Multi-layered nanodevices for biomedical applications 

      Cuesta Arcos, Sergi (Universitat Politècnica de Catalunya, 2018-06)
      Bachelor thesis
      Open Access
      In this Bachelor thesis, a novel method to fabricate a self-supporting multi-layered nanomembrane is presented. Three designs with different polymeric materials were prepared and studied to select the most optimal multi-layered ...
    • Nanoscale control of heat generation with plasmonic nanostructures 

      Morales Dalmau, Jordi (Universitat Politècnica de Catalunya, 2013-07-19)
      Master thesis
      Open Access
      [ANGLÈS] During the last 25 years nanotechnology has become a transvers field either in research and everyday's live. In this work we present a method which can control temperature down to nanoscale thanks to plasmonic ...
    • Nanostructured optical surfaces with antireflective and superhydrophobic properties 

      Martínez Gálvez, Sofía (Universitat Politècnica de Catalunya, 2018-06)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Optical and Electrical characterization of Carbon Nanotube based high-Q mechanical resonators 

      Palou Garcia, Xavier (Universitat Politècnica de Catalunya, 2014-06-10)
      Master thesis
      Open Access
      [ANGLÈS] Carbon Nanotubes have been one of the most intensively studied materials in the last two decades. Because of their combination of outstanding properties (mechanical, thermal, electrical, optical, etc.) the community ...
    • Optical characterization of molecular beam epitaxy grown GaAs nanotrees 

      Garcia Garcia, óscar (Universitat Politècnica de Catalunya, 2018-07)
      Bachelor thesis
      Open Access
      In the aim to grow vertical self-catalyzed GaAs nanowires on [100] Si, fancy structures with a tapered shape resembling a tree were observed. They were called nanotrees. This is the first time that vertical growth has been ...
    • Optical phase control for interferomètric Nera-Field optics applications 

      Golvano Escobal, Irati (Universitat Politècnica de Catalunya, 2011-07-15)
      Master thesis
      Open Access
      English: The interest for studying metallic nanostructures is increasingly attracting to the scientific community. Integrating a near-field microscopy in an heterodyne interferometer, the dynamic properties of light ...
    • Plasmon enhanced chirality 

      García Guirado, Jose María (Universitat Politècnica de Catalunya, 2013-07-19)
      Master thesis
      Open Access
      [ANGLÈS] An experimental set-up to measure plasmon-enhanced Circular Dichroism (CD) on Planar Chiral Metamaterials (PCM) has been designed, built and tested. PCMs, made of two-dimensional arrays of metallic nano-particles, ...
    • Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution 

      Xing, Congcong; Liu, Yongpeng; Zhang, Yu; Liu, Junfeng; Zhang, Ting; Soler Turu, Lluís; Llorca Piqué, Jordi (Royal Society of Chemistry (RSC), 2019-01-01)
      Article
      Open Access
      We present a strategy to produce porous NiTiO3/TiO2 nanostructures with excellent photocatalytic activity toward hydrogen generation. In a first step, nickel-doped TiO2 needle bundles were synthesized by a hydrothermal ...
    • Quantum integrated photonics 

      Fargas Cabanillas, Josep Maria (Universitat Politècnica de Catalunya, 2016-05)
      Bachelor thesis
      Open Access
      Covenantee:   University of Colorado Boulder
      For many years scientist and engineers have used complex photonic set ups on large optical tables to perform quantum experiments. The problem is while the experiments are getting more and more complex the set ups are getting ...
    • Single-layer Molybdenum disulfide photodetectors 

      López Sánchez, Oriol (Universitat Politècnica de Catalunya, 2012-02)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   École polytechnique fédérale de Lausanne
      [ANGLÈS] Two-dimensional (2D) materials are very attractive candidates for use in next-generation nanoelectronic devices. Compared to one-dimensional materials, with 2D materials is relatively easy to fabricate complex ...
    • Solution-growth and optoelectronic properties of ZnO:Cl@ZnS core-shell nanowires with tunable shell thickness 

      Fan, Jiandong; Fábrega, Cristian; Zamani, Reza; Shavel, Alexey; Güell, Frank; Carrete, Alex; Andreu, Teresa; López Martínez, Antonio Miguel; Morante Lleonart, Joan Ramon; Arbiol, Jordi; Cabota, Andreu (2013-04-05)
      Article
      Restricted access - publisher's policy
      Arrays of vertically aligned ZnO:Cl@ZnS core–shell nanowires (NWs) were grown by a facile low-cost, high-yield and seed-free two-step process. These NWs were used to demonstrate the potential of 3D electrodes based on ...
    • Thermo-plasmonics : controlling and probing temperature on the nanometer scale 

      Donner, Jon Sean (Universitat Politècnica de Catalunya, 2014-05-30)
      Doctoral thesis
      Open Access
      In the last decades, optics has become central in many applications in modern society. Nano-optics, which studies the behavior of light at the nanoscale, holds promise to do the same. However, when using traditional optical ...
    • Ultra-thin silver based infrared solar filter for ophtalmic lenses 

      Carrilero Carrió, Albert (Universitat Politècnica de Catalunya, 2011-12-21)
      Master thesis
      Open Access
      English: A silver-based transparent heat mirror for ophthalmic lenses was developed using optimal layers design techniques, to achieve high visible transparency and low solar infrared (IR) transmittance properties. After ...