Apparent Two-Dimensional Behavior of TiO2 Nanotubes Revealed by Light Absorption and Luminescence
Reference:
Bavykin, D. V., Gordeev, S. N., Moskalenko, A. V., Lapkin, A. A. and Walsh, F. C., 2005. Apparent Two-Dimensional Behavior of TiO2 Nanotubes Revealed by Light Absorption and Luminescence. Journal of Physical Chemistry B, 109 (18), pp. 8565-8569.
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Abstract
Optical absorption and photoluminescence (PL) properties of colloidal TiO2 nanotubes, produced by the alkali hydrothermal method, were studied at room temp. in the range 300-700 nm. Nanotubes having an internal diam. in the range 2.5-5 nm have very similar optical properties, in contrast to the expected behavior for quasi-1-D systems. This is explained by the complete thermal smearing of all 1-D effects, due to the large effective mass of charge carriers in TiO2, resulting in an apparent 2-D behavior of TiO2 nanotubes. [on SciFinder (R)]
Details
| Item Type | Articles |
| Creators | Bavykin, D. V., Gordeev, S. N., Moskalenko, A. V., Lapkin, A. A. and Walsh, F. C. |
| Uncontrolled Keywords | luminescence (diam.-dependent, nanotubes, photoexcitation (luminescence excitation, titanium oxide nanotube absorption photoluminescence diam size effect, band structure, quantum size effect (nanotube diam., of tio2 nanotubes), optical absorption (apparent two-dimensional behavior of tio2 nanotubes revealed by light absorption and luminescence), uv and visible spectra (absorption, surface structure (of tio2 nanotubes), apparent two-dimensional behavior of tio2 nanotubes revealed by light absorption and luminescence) |
| Departments | Faculty of Engineering & Design > Chemical Engineering |
| Refereed | Yes |
| Status | Published |
| ID Code | 930 |
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