Srivastava, A. K. and Deepa, M. and Bhandari, S. and Fuess, H. (2008) Tunable Nanostructures and Crystal Structures in Titanium Oxide Films. Nanoscale Research Letters , 4 (1). pp. 54-62. ISSN 1931-7573

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Controllable nanostructures in spin coated titanium oxide (TiO2) films have been achieved by a very simple means, through change of post deposition annealing temperature. Electron beam imaging and reciprocal space analysis revealed as-deposited TiO2films to be characterized by a dominant anatase phase which converts to the rutile form at 600 °C and reverts to the anatase modification at 1,200 °C. The phase changes are also accompanied by changes in the film microstructure: from regular nanoparticles (as-deposited) to nanowires (600 °C) and finally to dendrite like shapes at 1,200 °C. Photoluminescence studies, Raman spectral results, and X-ray diffraction data also furnish evidence in support of the observed solid state phase transformations in TiO2.

Item Type: Article
Uncontrolled Keywords: Nanostructured TiO2; Phase transformations; Photoluminescence; Spectroscopy
Subjects: Materials Science
Depositing User: Ms Neetu Chandra
Date Deposited: 22 Oct 2012 12:13
Last Modified: 22 Oct 2012 12:13

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