title: Vertically aligned TiO2 nanotubes on plastic substrates for flexible solar cells.
abstract: 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).
authors.affiliation: CNR IDASC SENSOR Lab and Dipartimento di Chimica e Fisica per l'Ingegneria e per i Materiali, University of Brescia, Via Valotti 9, 25133 Brescia, Italy.
authors.forename: Vardan
authors.initials: V
authors.lastname: Galstyan
authors.forename: Alberto
authors.initials: A
authors.lastname: Vomiero
authors.forename: Isabella
authors.initials: I
authors.lastname: Concina
authors.forename: Antonio
authors.initials: A
authors.lastname: Braga
authors.forename: Mariangela
authors.initials: M
authors.lastname: Brisotto
authors.forename: Elza
authors.initials: E
authors.lastname: Bontempi
authors.forename: Guido
authors.initials: G
authors.lastname: Faglia
authors.forename: Giorgio
authors.initials: G
authors.lastname: Sberveglieri