Now showing items 1-16 of 16
Cárdenas Morcoso, Drialys (Date of defense: 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 ...
Ruiz Raga, Sonia (Date of defense: 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 ...
Miralles-Comins, Sara (Date of defense: 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 ...
Ventura Espinosa, David (Date of defense: 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 ...
González Cuadra, Jaime (Date of defense: 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 ...
Pulya Ravishankar, Sandheep (Date of defense: 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 ...
Vallés Pelarda, Marta (Date of defense: 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 ...
Andrio Balado, Andreu (Date of defense: 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 ...
Almora Rodríguez, Osbel (Date of defense: 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 ...
Gonzales, Cedric (Date of defense: 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 ...
Dos Santos Veiga, Emerson Luiz (Date of defense: 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, ...
Alvarez Ojeda, Agustín (Date of defense: 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 ...
Martí Valls, Rafael (Date of defense: 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 ...
Clasen Hames, Bruno (Date of defense: 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 ...
Serna-Gallén, Pablo (Date of defense: 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 ...
Kunnummal Mangott, Muhammed Salim (Date of defense: 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 ...