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

Keisuke Nakayama; Takaya Kubo; Yoshinori Nishikitani

doi:10.1143/APEX.1.112301

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

Keisuke Nakayama^*, Takaya Kubo, Yoshinori Nishikitani

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	1123011-1123013
Number of pages	3
Journal	Applied Physics Express
Volume	1
Issue number	11
DOIs	https://doi.org/10.1143/APEX.1.112301
Publication status	Published - 2008 Nov
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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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.",

author = "Keisuke Nakayama and Takaya Kubo and Yoshinori Nishikitani",

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AU - Nishikitani, Yoshinori

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N2 - 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.

AB - 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.

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

Abstract

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