Growth direction determination of a single RuO2 nanowire by polarized Raman spectroscopy

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The dependence of band intensities in the Raman spectrum of individual single-crystal ruthenium dioxide (RuO2) nanowires on the angle between the plane of polarization of the exciting (and collected) light and the long axis of the nanowire, is shown to be a simple, complementary technique to high resolution transmission electron microscopy (HRTEM) for determining nanowire growth direction. We show that excellent agreement exists between what is observed and what is predicted for the polarization angle dependence of the intensities of the nanowires' E-g (525 cm(-1)) and the B-2g (714 cm(-1)) Raman bands, only by assuming that the nanowires grow along the (001) crystallographic direction, as confirmed by HRTEM. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3435475]
Publisher
AMER INST PHYSICS
Issue Date
2010-05
Language
English
Article Type
Article
Keywords

WELL-ALIGNED RUO2; SCATTERING

Citation

APPLIED PHYSICS LETTERS, v.96, no.21

ISSN
0003-6951
DOI
10.1063/1.3435475
URI
http://hdl.handle.net/10203/93803
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