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Issue 24, 2005
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Dye-sensitized TiO2 nanotube solar cells: fabrication and electronic characterization

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Abstract

TiO2 nanotubes (TNTs) with large aspect ratio and large specific surface area were prepared from P25 (Nippon Aerosil) and applied to dye-sensitized titanium dioxide solar cells (DSSCs). Optimization of fabrication conditions, i.e., pH of the starting paste, sintering temperature for the TiO2 electrodes, electrolyte compositions of DSSCs gave the high conversion efficiency with improved open circuit voltage (Voc) and fill factor (FF) when compared to DSSCs made of P25. The evaluation of dye adsorption and the photo-injected electron transport such as electron diffusion coefficient (D) and electron lifetime (τ) in TNTs electrodes revealed that the higher efficiency resulted from increase of electron density with keeping much longer τ in TNTs electrodes than in P25 electrodes.

Graphical abstract: Dye-sensitized TiO2 nanotube solar cells: fabrication and electronic characterization

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Publication details

The article was received on 02 Aug 2005, accepted on 03 Oct 2005 and first published on 13 Oct 2005


Article type: Paper
DOI: 10.1039/B511016E
Citation: Phys. Chem. Chem. Phys., 2005,7, 4157-4163
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    Dye-sensitized TiO2 nanotube solar cells: fabrication and electronic characterization

    Y. Ohsaki, N. Masaki, T. Kitamura, Y. Wada, T. Okamoto, T. Sekino, K. Niihara and S. Yanagida, Phys. Chem. Chem. Phys., 2005, 7, 4157
    DOI: 10.1039/B511016E

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