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Increase of the Efficiency of Quasi-Solid State Dye-Sensitized Solar Cells by a Synergy between Titania Nanocrystallites of Two Distinct Nanoparticle Sizes


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A quasi-solid state dye-sensitized solar cell has been constructed by employing a nanocomposite organic-inorganic solid gel electrolyte. The titania film was a combination of nanoparticles of two distinct sizes obtained by separate sol-gel syntheses using different organic templates. The synergy between these entities raised cell efficiency to 6.9% under 1 sun. This value is very high, considering the fact that it is obtained with a quasi-solid state cell.

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