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Vertically Aligned TiO2 Nanotubes on Plastic Substrates for Flexible Solar Cells

✍ Scribed by Vardan Galstyan; Alberto Vomiero; Isabella Concina; Antonio Braga; Mariangela Brisotto; Elza Bontempi; Guido Faglia; Giorgio Sberveglieri

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 852 KB
Volume: 7
Category: Article
ISSN: 1613-6810
DOI: 10.1002/smll.201101356

No coin nor oath required. For personal study only.

✦ Synopsis

Electrochemical anodization of a titanium film on a Kapton HN substrate leads to the formation of closely packed aligned nanotubes, whose shape can be finely tuned by tailoring the anodization parameters. An amorphous-to-anatase phase transition is induced on nanotubes by annealing at 350 °C. The nanotubes are applied as photoanodes in flexible dye-sensitized solar cells (N719 dye; I3-/I- redox couple), resulting in a photoconversion efficiency of up to 3.5% under simulated sunlight irradiation air mass 1.5 global (AM 1.5G).

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