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Microscopy techniques for dye distribution in DSCs nanocrystalline TiO2 films

Dye-sensitized 1D anatase TiO2 nanorods for tunable efficient photodetection in...

TiO2 films with enhanced photosensitivity were deposited on alkali free glass substrates without intentional substrate heating by pulsed DC magnetron reactive sputtering with an average thickness of about 2 μm. Three dyes, commercial N719 and two new organic dyes were impregnated in order to control the optical spectral selectivity of such films. The type of dye used proved to dramatically influence the device'...

Armazenamento de Energia Solar Térmica

Com o objectivo de recolher informação sobre os trabalhos mais recentes de I&D na área do armazenamento solar térmico houve uma participação na “4th International Renewable Energy Storage Conference” IRES 2009, que decorreu nas instalações da Representation of the Federal State of North Rhine Westphalia em Berlim, de 24 a 25 de Novembro e que reuniu cerca de 400 participantes de 22 países. Neste evento que se r...

Novel solar absorber surfaces with organic pigments

This paper presents results of application of natural and synthetic organic pigments in selective solar absorber coatings. Some of these photo excite pigments were tested like solar radiation absorber pigments in paint coatings and others as a form to increase the absorption of solar radiation in titanium oxide monolayer selective coatings produced by reactive magnetron sputtering. Morphologic aspects and optic...