HERAS PÉREZ , Irene

Aumentar la cuota de energías renovables en el mix energético es fundamental para asegurar el abastecimiento de energía y disminuir las emisiones de gases de efecto invernadero asociadas al uso de combustibles fósiles. El objetivo de la presente tesis es desarrollar nuevos recubrimientos solares selectivos (SSC por sus siglas en inglés),...

Titanium oxide films were deposited at room temperature and with no applied bias using a filtered cathodic vacuum arc (FCVA) system in a reactive oxygen environment. The dependence of film growth on two process parameters, the working pressure (Pw) and the O2 partial pressure (pO2), is described in detail. The composition, morphological...

The thermal stability of two AlyTi1- y(OxN1-x) layers prepared by cathodic vacuum arc deposition with different oxygen content was studied after high temperature annealing of the samples in air. These layers were designed to be part of solar-selective coating (SSC) stacks. Compositional and microstructural characterization of the thin films was...

The optimisation of the specular reflectance of solar collectors is a key parameter to increase the global yield of concentrated solar power (CSP) plants. In this work, the influence of filtered cathodic vacuum arc deposition parameters, particularly working pressure and deposition time, on the specular and diffuse reflectance of aluminium thin...