TiO2 nanorod-based photoelectrodes for dye solar cells with tunable morphological features

Manca, Michele and De Marco, Luisa and Giannuzzi, Roberto and Agosta, Rita and Dwivedi, Charu and Qualtieri, Antonio and Cozzoli, P Davide and Dutta, Viresh and Gigli, Giuseppe (2013) TiO2 nanorod-based photoelectrodes for dye solar cells with tunable morphological features. Thin Solid Films, 568. pp. 122-130. ISSN 0040-6090

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The ability to create photoanodes in which the structural and morphological features of the underlying TiO2 nanocrystalline constituents provide a tailored nanotexture with a higher degree of functionality still represents an indispensible step toward boosting the ultimate light-to electricity conversion of photoelectrochemical devices. This is especially evident for dye solar cells. In this paper we have systematically analyzed the impact of several different TiO2 nanorod morphologies on the most meaningful electrochemical features of the mesoporous photoelectrode of a dye solar cell. The most relevant findings have been then adopted as design criteria to realize an optimized multilayered photoelectrode with a properly engineered architecture which embodies three different breeds of nanocrystal with synergistic peculiarities. It exhibited superior power conversion efficiencies with respect to conventional nanoparticle-based reference film.

Item Type: Article
Uncontrolled Keywords: Electrochemical impedance spectroscopy; Photoelectrodes; TiO2 nanorods
Subjects: 500 Scienze naturali e Matematica > 540 Chimica e scienze connesse
Depositing User: Francesca Cavazzini
Date Deposited: 03 Feb 2015 08:47
Last Modified: 03 Feb 2015 08:47
URI: http://eprints.bice.rm.cnr.it/id/eprint/10039

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