Tunable Nanostructures and Crystal Structures in Titanium Oxide Films
<p>Abstract</p> <p>Controllable nanostructures in spin coated titanium oxide (TiO<sub>2</sub>) 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-depos...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2008-01-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-008-9202-9 |
| Summary: | <p>Abstract</p> <p>Controllable nanostructures in spin coated titanium oxide (TiO<sub>2</sub>) 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 TiO<sub>2</sub>films 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 TiO<sub>2</sub>.</p> |
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| ISSN: | 1931-7573 1556-276X |