Fabrication of Morphology Controllable Vertically Aligned TiO2 Nanorod Arrays for Dye-Sensitized Solar Cells

Fen Li; Su Juan Hu; Li Dong Wei; Bo Chi; Li Jian

doi:10.4028/www.scientific.net/KEM.680.278

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 680Fabrication of Morphology Controllable Vertically...

Fabrication of Morphology Controllable Vertically Aligned TiO₂ Nanorod Arrays for Dye-Sensitized Solar Cells

Abstract:

In this work, vertically aligned TiO₂ nanorod arrays (NR) are synthesized directly on FTO coated glass substrate by hydrothermal method. The samples are characterized by XRD, SEM, TEM and the results indicate that the 1-D nanorods are of single crystal rutile structure with growth direction along the [001] direction. The morphology (diameter, thickness and density) of the nanorods can be adjusted by changing the precursor amounts. The possible growth mechanism of TiO₂ nanorods on FTO substrate has also been briefly discussed in this work. For dye-sensitized solar cells (DSSCs) fabricated of different thickness nanorods, a power conversion efficiency (PCE) of 1.74% has been achieved by using ~3μm nanorod arrays under simulated AM 1.5 illumination (100 mW cm^-2). It is expected that the 1-D nanorods can be composited with other nanomaterial of different structures and morphologies to enhance the efficiency of DSSCs.

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Periodical:

Key Engineering Materials (Volume 680)

Pages:

278-281

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.680.278

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Online since:

February 2016

Authors:

Fen Li, Su Juan Hu, Li Dong Wei, Bo Chi*, Li Jian

Keywords:

Dye-Sensitized Solar Cell, Hydrothermal, Morphology, TiO₂ Nanorods

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