Surface enhanced Raman scattering properties using Au-coated ZnO nanorods grown by two-step, off-axis pulsed laser deposition

Tatsunori Sakano, Yuto Tanaka, Ryo Nishimura, Nikolay N. Nedyalkov, Petar A. Atanasov, Toshiharu Saiki, Minoru Obara

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

ZnO nanorod arrays on Si (1 0 0) substrate were grown by the pulsed laser deposition (PLD) method, and then coated with Au. Two samples of Au-coated nanorod arrays with different average diameters of 150 and 400 nm were prepared to investigate the size dependence of the surface enhanced Raman scattering (SERS). The diameter of the nanorods was controllable by the substrate position during PLD. High SERS enhancement was observed from both Au-coated ZnO nanorod arrays. The Raman spectra of rhodamine 6G (R6G) as low as 1 nM were measured with an average diameter of 400 nm at an excitation wavelength of 532 nm. The SERS was explained by the field enhancement effect induced by surface plasmon polaritons of Au-coated nanorods (nanoshells).

Original languageEnglish
Article number235304
JournalJournal of Physics D: Applied Physics
Volume41
Issue number23
DOIs
Publication statusPublished - 2008

Fingerprint

Pulsed laser deposition
Nanorods
nanorods
pulsed laser deposition
Raman scattering
Raman spectra
Nanoshells
augmentation
Substrates
rhodamine
polaritons
Wavelength
wavelengths
excitation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Cite this

Surface enhanced Raman scattering properties using Au-coated ZnO nanorods grown by two-step, off-axis pulsed laser deposition. / Sakano, Tatsunori; Tanaka, Yuto; Nishimura, Ryo; Nedyalkov, Nikolay N.; Atanasov, Petar A.; Saiki, Toshiharu; Obara, Minoru.

In: Journal of Physics D: Applied Physics, Vol. 41, No. 23, 235304, 2008.

Research output: Contribution to journalArticle

Sakano, Tatsunori ; Tanaka, Yuto ; Nishimura, Ryo ; Nedyalkov, Nikolay N. ; Atanasov, Petar A. ; Saiki, Toshiharu ; Obara, Minoru. / Surface enhanced Raman scattering properties using Au-coated ZnO nanorods grown by two-step, off-axis pulsed laser deposition. In: Journal of Physics D: Applied Physics. 2008 ; Vol. 41, No. 23.
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