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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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Official URL:

http://dx.doi.org/10.1021/jp050762m

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
CreatorsBavykin, D. V., Gordeev, S. N., Moskalenko, A. V., Lapkin, A. A. and Walsh, F. C.
DOI10.1021/jp050762m
Uncontrolled Keywordsluminescence (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)
DepartmentsFaculty of Science > Physics
Faculty of Engineering & Design > Chemical Engineering
RefereedYes
StatusPublished
ID Code8906
Additional InformationID number: ISI:000228982900008

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