Center for Nano Science and Technology of oli

Milano, Italy

Center for Nano Science and Technology of oli

Milano, Italy
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Sauvage F.,Ecole Polytechnique Federale de Lausanne | Di Fonzo F.,Center for Nano Science and Technology of oli | Di Fonzo F.,Polytechnic of Milan | Li Bassi A.,Center for Nano Science and Technology of oli | And 10 more authors.
Nano Letters | Year: 2010

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. © 2010 American Chemical Society.

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