Nanomaterials based on metal halide perovskites: emissive and photocatalytic properties

• Autores: Ignacio Rosa Pardo
• Directores de la Tesis: Julia Pérez Prieto (dir. tes.), Raquel Eugenia Galian (codir. tes.)
• Lectura: En la Universitat de València ( España ) en 2023
• Idioma: inglés
• Número de páginas: 351
• Tribunal Calificador de la Tesis: Serena Silvi (presid.), Pedro Enrique Atienzar Corvillo (secret.), Carla Casadevall (voc.)
• Programa de doctorado: Programa de Doctorado en Química Sostenible por la Universidad de Castilla-La Mancha; la Universidad de Extremadura; la Universidad Jaume I de Castellón; la Universitat de València (Estudi General) y la Universitat Politècnica de València
• Menciones:
  • Internacional
• Calificación: Sobresaliente Cum Laude
• Materias:
  • Física
    • Óptica
      • Propiedades ópticas de los sólidos
    • Química física
      • Fotoquímica
• Enlaces
  • Tesis en acceso abierto en: TESEO
• Resumen

  • Since the beginning of the last decade, metal halide perovskites (MHPs) have been postulated as one of the most promising semiconductor materials in optoelectronic applications. Therefore, perovskites and other metal halide structures have received great attention from different multidisciplinary and complementary research fields such as chemistry, physics, materials science, and engineering applications. Mostly, the interest stems from the optimal photophysical properties for light harnessing and carrier mobility along with the low-cost manufacture and processability of these materials. Furthermore, the development of colloidal MHPs confined at the nanoscale provided new avenues for tuning the band gap, improving the stability, and especially, favoring the radiative recombination pathways unlocking their use in lighting applications. But, alternatively to the rapid advancement in technologies for sunlight harvesting, energy storing, and the creation of electroluminescent devices, the production of a new generation of efficient photocatalysts to produce valuable compounds remains an important challenge. On this matter, the synthesis of perovskite NCs can expand their application in photocatalytic transformations in comparison with their bulk counterparts due to the enormous surface area available for conducting charge transfer processes with suitable acceptors and donors. Hence, this thesis contributes to the Material Science field, introducing different procedures to achieve stable and emissive LHP and metal halide NCs by top-down and bottom-up approaches. Their optical (absorption and emission) properties were used as indicators of the purity, crystallinity, surface passivation, homogeneity, and potential applications as luminescent materials of these perovskite NCs. Moreover, as a proof of concept of the superior ability of these materials to drive forward chemical reactions after absorbing visible light, this thesis also addresses their exploitation in heterogeneous photocatalysis for the synthesis of organic compounds of interest.