Advanced semiconductors for photo-electrocatalytic solar fuel production 

    Cárdenas Morcoso, Drialys (Fecha de defensa: 2020-07-20)

    Uno de los retos actuales de la ciencia y la tecnología es el desarrollo y utilización de fuentes de energías limpias, sostenibles y seguras, con el fin de sustituir el uso de combustibles fósiles. La energía solar, única ...

    Advanced Studies on Dye-Sensitized Solar Cells 

    Ruiz Raga, Sonia (Fecha de defensa: 2013-05-13)

    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 ...

    Development of Advanced Materials Based on Polymeric Ionic Liquids Formulated for Additive Manufacturing 

    Miralles-Comins, Sara (Fecha de defensa: 2023-04-28)

    This thesis focuses on the design, development and characterisation of 3D printable materials based on polymeric ionic liquids. Additive manufacturing, commonly known as 3D printing, is a revolutionary set of technologies ...

    Development of New Hybrid Materials Based on Graphene Functionalised with Molecular Complexes. Evaluation of Properties and Catalytic Applications 

    Ventura Espinosa, David (Fecha de defensa: 2020-07-10)

    En la presente tesis doctoral se ha descrito la síntesis de nuevos materiales híbridos basados en complejos organometálicos anclados mediante interacciones no covalentes sobre materiales derivados del grafeno. Los nuevos ...

    Development of transparent semiconductor oxides with optical properties for the functionalization of glass surfaces 

    González Cuadra, Jaime (Fecha de defensa: 2023-12-15)

    The growing interest in semiconductor oxide thin films within materials science and engineering due to their unique physical, chemical, and electrical properties. These films, with thicknesses ranging from nanometers to ...

    Device Modelling of Perovskite Solar Cells using Small Perturbation Methods 

    Pulya Ravishankar, Sandheep (Fecha de defensa: 2019-09-16)

    Perovskite solar cells (PSC) have emerged as an important player in the search for producing c1ean and renewable energy at high efficiencies. However, there exist several bottlenecks to maximise their efficiency and ...

    Different approaches to improve perovskite-based photovoltaic and optoelectronic devices 

    Vallés Pelarda, Marta (Fecha de defensa: 2022-01-21)

    Halide perovskites have had a huge impact on different fields in the last decade due to their versatility and amazing optoelectronic properties. However, there are still some issues to improve towards their future utilization ...

    Efecto del templado sobre la permeación de gases a través de filmes de polietileno lineal de baja densidad obtenidos por coextrusión 

    Andrio Balado, Andreu (Fecha de defensa: 1998-07-10)

    En esta tesis se han estudiado las propiedades difusivas de tres filmes de polietileno lineal de baja densidad a los gases nitrógeno, oxígeno y dióxido de carbono. Se ha medido los coeficientes de permeabilidad, difusión ...

    Hysteresis and Capacitive Features of Perovskite Solar Cells 

    Almora Rodríguez, Osbel (Fecha de defensa: 2020-06-19)

    In the present work, anomalous distortions occurring in the current-voltage characteristic of perovskite solar cells (PSCs), usually called J-V curve hysteresis, are studied by several methods. This includes dynamic ...

    Hysteresis Control in Hybrid Perovskite-based Devices for Photovoltaic and Neuromorphic Computing Applications 

    Gonzales, Cedric (Fecha de defensa: 2023-07-07)

    Perovskite solar cells have been rapidly advancing in record efficiencies at an unprecedented rate already approaching the theoretical maximum efficiency in just over a decade of development. Most notably, perovskites ...

    Materials based on RE2Zr2O7 compositions: a comprehensive study on advanced properties and multifunctional applications 

    Dos Santos Veiga, Emerson Luiz (Fecha de defensa: 2023-12-14)

    In the face of imminent challenges posed by climate change, urgent strides in sustainable development, particularly in energy-efficient alternatives, are crucial. Technological advancements, especially in advanced materials, ...

    Modulated Techniques to Analyse Photoconversion Devices 

    Alvarez Ojeda, Agustín (Fecha de defensa: 2023-07-21)

    The urgent need for a sustainable energetic system to mitigate global warming has increased interest in solar energy as a promising solution. Currently, photoconversion technologies generate only a small fraction of the ...

    Obtención de estructuras calcopirita (CIGS) y kesterita (CZTS) como absorbentes para dispositivos fotovoltaicos de capa fina mediante métodos de síntesis de bajo coste 

    Martí Valls, Rafael (Fecha de defensa: 2016-12-19)

    La presente tesis se basa en la obtención de materiales absorbentes para dispositivos fotovoltaicos de capa fina. Los compuestos absorbentes estudiados han sido Cu(In0,7Ga0,3)Se2 (CIGS, calcopirita) y Cu2ZnSn(Se1-x,Sx)4 ...

    Sistema de baja dimensionalidad para aplicaciones fotovoltaicas y optoelectrónicas 

    Clasen Hames, Bruno (Fecha de defensa: 2019-10-24)

    El aumento del consumo energético ha provocado un gran impacto ambiental debido al intenso uso de las fuentes de energía no renovables, provocando cambios climáticos y calentamiento global. Para frenar estos efectos no ...

    Solid-State Hosts Based on Fluorides with Europium: From the Crystal Structure toward the Optical Performance 

    Serna-Gallén, Pablo (Fecha de defensa: 2023-12-21)

    The present Doctoral Thesis is framed within the Solid State Chemistry and Materials Science, focusing on the formulation of host lattices based on yttrium fluorides for photoluminescence applications, and establishing ...

    Stabilization of Polymorphic Halide Perovskite Black Phase for Optoelectronic Applications 

    Kunnummal Mangott, Muhammed Salim (Fecha de defensa: 2022-05-26)

    The photovoltaic and luminance efficiencies of halide perovskite-based devices achieved an unprecedented improvement in comparison to their existing counterparts. Among the family of lead-based halide perovskites, the ...