Inderscience Publishers

Solvothermal synthesis and microstructure of TiO
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nanowires on transparent conducting oxide substrate

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TiO2 nanowires were synthesised directly on FTO by solvothermal method. X–ray diffraction (XRD), field–emission scanning electron microscopy (FE–SEM) and high–resolution transmission electron microscopy (HRTEM) were used to characterise the TiO2 nanowires. The TiO2 nanowire formation was critically affected by reaction temperature and titanium precursor. The high density and well–aligned TiO2 nanowires were formed using a mixed precursor of TiCl4 and Ti(OC4H9)4 at 180°C. The nanowires had a single–crystalline structure and grew along the <001> zone–axis rutile phase. This approach represents an advance toward a low–temperature growth of well–aligned TiO2 nanowires on transparent conducting oxide for their potential applications in dye–sensitised solar cell.

Keywords: TiO2 nanowires, nanostructures, photocatalysis, solvothermal method, hydrothermal, titania, nanotechnology, transparent conducting oxide, dye–sensitised solar cells, microstructure

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