Advanced Studies on Dye-Sensitized Solar Cells

• Autores: Sonia Ruiz Raga
• Directores de la Tesis: Iván Mora-Seró (dir. tes.), Francisco Fabregat Santiago (dir. tes.)
• Lectura: En la Universitat Jaume I ( España ) en 2013
• Idioma: inglés
• Tribunal Calificador de la Tesis: Emilio J. Palomares Gil (presid.), Sixto Giménez Juliá (secret.), Ramón Tena Zaera (voc.)
• Materias:
  • Astronomía y astrofísica
    • Sistema solar
      • Energía solar
  • Física
    • Física del estado sólido
      • Interfases
      • Semiconductores
  • Ciencias tecnológicas
    • Tecnología electrónica
      • Dispositivos fotoeléctricos
• Enlaces
  • Tesis en acceso abierto en: TDX
• Resumen

  • The conversion of sunlight into electricity is one of the most promising energy sources because is renewable and available worldwide. Therefore, is desirable to develop low cost, stable and efficient photovoltaic devices that can compete with the expensive silicon solar panels. Dye-sensitized solar cells (DSC) are a promising photovoltaic technology based on low-cost materials and fabrication processes with power-conversion efficiencies over 12%. DSC harvest light thanks to a photoactive organic molecule, and extracts the charges through different materials. The analysis of the working principles of these complex devices is essential in order to achieve further improvements on the solar cell efficiency. The aim of this thesis is to analyze and identify the electrical interactions between the internal materials and interfaces of a DSC by means of impedance spectroscopy (IS). We provide useful interpretation of IS applied to DSC and insights on DSC development such as implementation of photonic crystals and up-scaling to modules, as a first step for a future commercialization.