Hierarchical or one-dimensional architectures are among the most exciting developments in material science these recent years. We present a nanostructured TiO2 assembly combining these two concepts and resembling a forest composed of individual, high aspect-ratio, treelike nanostructures. We propose to use these structures for the photoanode in dye-sensitized solar cells, and we achieved 4.9% conversion efficiency in combination with C101 dye. We demonstrate this morphology beneficial to hamper the electron recombination and also mass transport control in the mesopores when solvent-free ionic liquid electrolyte is used.

Hierarchical TiO2 Photoanode for Dye-Sensitized Solar Cells

DI FONZO, FABIO;LI BASSI, ANDREA;CASARI, CARLO SPARTACO;RUSSO, VALERIA;BOTTANI, CARLO ENRICO;
2010

Abstract

Hierarchical or one-dimensional architectures are among the most exciting developments in material science these recent years. We present a nanostructured TiO2 assembly combining these two concepts and resembling a forest composed of individual, high aspect-ratio, treelike nanostructures. We propose to use these structures for the photoanode in dye-sensitized solar cells, and we achieved 4.9% conversion efficiency in combination with C101 dye. We demonstrate this morphology beneficial to hamper the electron recombination and also mass transport control in the mesopores when solvent-free ionic liquid electrolyte is used.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/571527
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