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Apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence

Record type: Article

Optical absorption and photoluminescence (PL) properties of colloidal TiO2 nanotubes, produced by the alkali hydrothermal method, were studied at room temperature in the range 300-700 nm. Nanotubes having an internal diameter 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.

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Citation

Bavykin, Dimitry V., Gordeev, Sergey N., Moskalenko, Andriy V., Lapkin, Alexei A. and Walsh, Frank 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. (doi:10.1021/jp050762m).

More information

Published date: 12 May 2005

Identifiers

Local EPrints ID: 23576
URI: http://eprints.soton.ac.uk/id/eprint/23576
ISSN: 1089-5647
PURE UUID: 21e3e016-c9e2-4639-852e-451d1cd39b72

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Date deposited: 20 Mar 2006
Last modified: 17 Jul 2017 16:17

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Contributors

Author: Sergey N. Gordeev
Author: Andriy V. Moskalenko
Author: Alexei A. Lapkin
Author: Frank C. Walsh

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