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Updated: Aug 7, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Apparent two-dimensional behavior of TiO2 nanotubes revealed by light absorption and luminescence
Dmitry V Bavykin1, Sergey N Gordeev, Andriy V Moskalenko
1Catalysis and Reaction Engineering Group, Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK. D.V.Bavykin@bath.ac.uk
Abstract:
Optical absorption and photoluminescence (PL) properties of colloidal TiO(2) 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 TiO(2), resulting in an apparent 2-D behavior of TiO(2) nanotubes.

