Journal
CHEMICAL PHYSICS LETTERS
Volume 338, Issue 4-6, Pages 231-236Publisher
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DOI: 10.1016/S0009-2614(01)00263-9
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Highly ordered TiO2 nanowire arrays were prepared in anodic alumina membranes by anodic oxidative hydrolysis of TiCl3. The TiO2 nanowires are polycrystalline anatase-phase with uniform diameters around 50 nm and are composed of very small crystallites with diameters of about 2-4 nm. After annealing the crystallites grow to about 7 nm in diameters. At room temperature, Raman measurements of the TiO2 nanowire arrays show typical anatase TiO2 Raman spectra with significant broadening: and shift. which can be attributed to phonon size confinement and oxygen deficiency. (C) 2001 Elsevier Science B.V. All rights reserved.
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