TiO2 nanotube layers on Ti substrates for high efficiency flexible dye-sensitized solar cells

Keisuke Nakayama, Takaya Kubo, Yoshinori Nishikitani

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report herein the promising application of TiO2 nanotubes formed on a Ti substrate to a flexible dye-sensitized solar cell illuminated from the back-side. We found that anodization of a Ti substrate in an extremely dilute perchloric acid solution yielded the formation of a high aspect-ratio TiO2 nanotube layer on the Ti substrate. The nanotube layer has the equivalent surface area for dye-adsorption to a TiO2 nanoparticle layer. This novel one-dimensional TiO2 material provided efficient carrier generation interfaces as well as an efficient transport pathway for the carriers, evidenced by the enhanced photocurrent and photovoltage of the cell.

Original languageEnglish
Pages (from-to)1123011-1123013
Number of pages3
JournalApplied Physics Express
Volume1
Issue number11
DOIs
Publication statusPublished - 2008 Nov
Externally publishedYes

Fingerprint

Nanotubes
nanotubes
solar cells
dyes
Substrates
perchloric acid
photovoltages
high aspect ratio
Photocurrents
photocurrents
Aspect ratio
Dyes
Nanoparticles
Adsorption
nanoparticles
adsorption
Acids
cells
Dye-sensitized solar cells

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

TiO2 nanotube layers on Ti substrates for high efficiency flexible dye-sensitized solar cells. / Nakayama, Keisuke; Kubo, Takaya; Nishikitani, Yoshinori.

In: Applied Physics Express, Vol. 1, No. 11, 11.2008, p. 1123011-1123013.

Research output: Contribution to journalArticle

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