Physically Self-assembled Ag Nanorod Arrays for Tunable Plasmonic Sensors

Motofumi Suzuki; Yoshinori Wada; Wataru Maekita; Kaoru Nakajima; Kenji Kimura; Takao Fukuoka; Yasushige Mori

doi:10.1380/ejssnt.2005.280

Conference -ISSS-4-

Physically Self-assembled Ag Nanorod Arrays for Tunable Plasmonic Sensors

Motofumi Suzuki, Yoshinori Wada, Wataru Maekita, Kaoru Nakajima, Kenji Kimura, Takao Fukuoka, Yasushige Mori

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Keywords: Nano-particles, quantum wires, and nanotubes, Dynamic oblique deposition, Silver, Raman scattering spectroscopy

JOURNAL FREE ACCESS

2005 Volume 3 Pages 280-283

DOI https://doi.org/10.1380/ejssnt.2005.280

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Abstract

We have established a process to fabricate Ag nanorod arrays with tunable morphology, hence tunable plasmonic properties. Based on a dynamic oblique deposition (DOD) technique, the nanorods are aligned in a way where their major axis is quasi-parallel. The aspect ratio of the nanorods is adjusted by choosing an appropriate DOD condition to show plasma resonance in the wavelength region around the Raman scattering at the excitation wavelength of 785 nm. The nanorod arrays thus tuned provide intense surface enhanced Raman scattering useful for practical applications to biochemical sensors. [DOI: 10.1380/ejssnt.2005.280]

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