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

    研究成果: Article査読

    66 被引用数 (Scopus)

    抄録

    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).

    本文言語English
    論文番号235304
    ジャーナルJournal of Physics D: Applied Physics
    41
    23
    DOI
    出版ステータスPublished - 2008 12月 1

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 凝縮系物理学
    • 音響学および超音波学
    • 表面、皮膜および薄膜

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