This thesis presents an investigation into the factors affecting the morphology of hybrid inorganic/organic photoactive layers used in photovoltaic cells. Although optimisation of the organic (polymer) phase has received substantial attention, research into the morphology of the…
Esta dissertação centra-se no estudo de Viabilidade das Energias Renováveis em Angola; deste modo, primeiro, é apresentada uma visão geral sobre o histórico mundial na área das energias renováveis, aborda-se a independência energética de Angola, a descarbonização do setor produt…
A produção de energia a partir de fontes renováveis, e em particular a energia fotovoltaica, tem vindo a crescer de forma muito significativa ao longo dos últimos anos. Este crescimento tem sido impulsionado pela necessidade de se aplicarem medidas que permitam mitigar as altera…
Fossil fuels are a finite resource and will eventually run out. The use of fossil fuels contributes to global warming from air pollution created mainly by the greenhouse gas carbon dioxide, which encourages using other energy alternatives. Finding clean and renewable energy sour…
PV (fotovoltaik) panellerin sıcaklığı, elektrik üretirken yükselmektedir. Bu yüzden, panellerin elektriksel verimi azalmakta ve sürekli soğutulması gerekmektedir. İşte, bu yüzden fotovoltaik termal sistemler, PV panel sıcaklığını düşürmek ve termal enerji kazanmak için dizayn ed…
Antireflective coatings in some implementation necessary for the decreasing surface reflection, but in some applications also for increasing transmittance. Incident radiation on the surface of the optical material is divided into transmitted, reflected, scattered, and absorbed p…
Perovskite photovoltaics is a promising technology due to its low-cost fabrication and high efficiency. Since their first demonstration in 2009, efficiencies of perovskite solar cells (PSCs) increased unprecedently fast from 3.81% to 25.2% in 10 years. The most common method for…
Water splitting via artificial photosynthesis uses only sunlight and water to produce hydrogen and oxygen. Hydrogen can be used as a green energy source. To be able this reaction to occur there is a catalyst needed as reaction center. Platinum and Iridium are the state-of-art ca…