Dye-sensitized solar cells are photo-electrochemical cells that use photo-sensitization of wide-band-gap mesoporous oxide semiconductors. These cells were invented by Michael Graetzel et al. in 1991 and are also known as Graetzel cells. The cells have a simple structure that consists of two electrodes and an electrolyte. One electrode is a dye-absorbed highly porous submicron size crystalline titanium dioxide deposited on a transparent electrically conducting substrate. The other is a transparent electrically conducting substrate only. Dye-sensitized solar cells are now forecasted to be a significant contributor to renewable electricity generation in the coming years.
Cristal offers CristalACTiV™ Ultrafine TiO2, as powder, sols or stable dispersions with ultrafine size crystallites and developed competences to control surface state, porosity, surface area, particle size and dispersion state of the CristalACTiV™ TiO2 ultrafine particles.
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