Flexible dye sensitized solar cells using TiO2 nanotubes

A. Vomiero; V. Galstyan; A. Braga; I. Concina; M. Brisotto; E. Bontempi; G. Sberveglieri

doi:10.1039/C0EE00485E

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Flexible dye sensitized solar cells using TiO₂ nanotubes†

A. Vomiero,*^a V. Galstyan,^a A. Braga,^a I. Concina,^a M. Brisotto,^b E. Bontempi^b and G. Sberveglieri^a

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* Corresponding authors

^a CNR IDASC SENSOR Lab and Chemistry and Physics Department, University of Brescia, Via Valotti 9, BRESCIA, Italy
E-mail: alberto.vomiero@ing.unibs.it

^b INSTM and Chemistry for Technologies Laboratory, University of Brescia, Via Branze 28, BRESCIA, Italy

Abstract

The growth of TiO₂ nanotube arrays on plastic flexible substrates is researched. The approach uses anodization of a titanium thick film for obtaining nanotubes directly on poly(ethylene terephthalate) (PET) and Kapton HN substrate. The morphological features of the tubes can be finely tuned by varying the preparation conditions, and tube morphology affects the functional properties of the nanotube array. Crystallization of the anatase phase in nanotubes on Kapton HN substrate is obtained via post growth annealing. The nanotube arrays have been dye-sensitized using the commercial Ru-based N719 dye. The system was tested as photoanode in a flexible dye sensitized solar cell. Photoconversion efficiency of 3.5% was obtained.

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Article information

DOI: https://doi.org/10.1039/C0EE00485E
Article type: Paper
Submitted: 27 Sep 2010
Accepted: 12 Mar 2011
First published: 29 Jun 2011

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Energy Environ. Sci., 2011,4, 3408-3413

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Flexible dye sensitized solar cells using TiO₂ nanotubes

A. Vomiero, V. Galstyan, A. Braga, I. Concina, M. Brisotto, E. Bontempi and G. Sberveglieri, Energy Environ. Sci., 2011, 4, 3408 DOI: 10.1039/C0EE00485E

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