2008年7月
Ag nanorod arrays tailored for surface-enhanced Raman imaging in the near-infrared region
NANOTECHNOLOGY
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- 巻
- 19
- 号
- 26
- 開始ページ
- 265304
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0957-4484/19/26/265304
- 出版者・発行元
- IOP PUBLISHING LTD
Using a dynamic oblique angle deposition technique, we demonstrate the direct formation of Ag nanorods with quasi-parallel major axes on a template layer of oxide having a strongly anisotropic surface morphology. The optical properties of the nanorods are tuned by varying the deposition conditions without any pre- or post-treatment, and the resulting Ag nanorod arrays exhibit high surface-enhanced Raman scattering (SERS) activity. In addition to high macroscopic uniformity over a large area, our nanorod arrays contain a high density of isolated nanorods. Using the optimum Ag nanorod arrays, the SERS imaging of the microdroplets of a rhodamine 6G solution is successfully demonstrated. The space resolution of the imaging is of the order of at least a few mu m. These features are suitable for the SERS imaging of biomaterials.
- リンク情報
- ID情報
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- DOI : 10.1088/0957-4484/19/26/265304
- ISSN : 0957-4484
- Web of Science ID : WOS:000256455900011