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

Myung Hwa Kim; Jeong Min Baik; Seung Joon Lee; Hae Young Shin; Jaeyeon Lee; Seokhyun Yoon; Galen D. Stucky; Martin Moskovits; Alec M. Wodtke

doi:10.1063/1.3435475

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

Myung Hwa Kim, Jeong Min Baik, Seung Joon Lee, Hae Young Shin, Jaeyeon Lee, Seokhyun Yoon, Galen D. Stucky, Martin Moskovits, Alec M. Wodtke

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

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' Eg (525 cm^-1) and the B₂g (714 cm^-1) Raman bands, only by assuming that the nanowires grow along the (001) crystallographic direction, as confirmed by HRTEM.

Original language	English
Article number	213108
Journal	Applied Physics Letters
Volume	96
Issue number	21
DOIs	https://doi.org/10.1063/1.3435475
State	Published - 24 May 2010

Bibliographical note

Funding Information:
We gratefully acknowledge the financial support from the Partnership for International Research and Education—for Electronic Chemistry and Catalysis at Interfaces—NSF Grant No. OISE-0530268. This work was supported by the Ewha Womans University Research Grant of 2009.

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10.1063/1.3435475

Cite this

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title = "Growth direction determination of a single RuO2 nanowire by polarized Raman spectroscopy",

abstract = "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' Eg (525 cm-1) and the B2g (714 cm-1) Raman bands, only by assuming that the nanowires grow along the (001) crystallographic direction, as confirmed by HRTEM.",

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note = "Funding Information: We gratefully acknowledge the financial support from the Partnership for International Research and Education—for Electronic Chemistry and Catalysis at Interfaces—NSF Grant No. OISE-0530268. This work was supported by the Ewha Womans University Research Grant of 2009.",

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AU - Kim, Myung Hwa

AU - Baik, Jeong Min

AU - Lee, Seung Joon

AU - Shin, Hae Young

AU - Lee, Jaeyeon

AU - Yoon, Seokhyun

AU - Stucky, Galen D.

AU - Moskovits, Martin

AU - Wodtke, Alec M.

N1 - Funding Information: We gratefully acknowledge the financial support from the Partnership for International Research and Education—for Electronic Chemistry and Catalysis at Interfaces—NSF Grant No. OISE-0530268. This work was supported by the Ewha Womans University Research Grant of 2009.

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Y1 - 2010/5/24

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AB - 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' Eg (525 cm-1) and the B2g (714 cm-1) Raman bands, only by assuming that the nanowires grow along the (001) crystallographic direction, as confirmed by HRTEM.

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