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


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).

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Description/Abstract

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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1021/jp050762m
ISSNs: 1089-5647 (print)
Subjects:

ePrint ID: 23576
Date :
Date Event
12 May 2005Published
Date Deposited: 20 Mar 2006
Last Modified: 16 Apr 2017 22:44
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/23576

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