Synthesis and self-assembly of gold nanoparticles by chemically modified polyol methods under experimental control

Nguyen Viet Long, Michitaka Ohtaki, Masayoshi Yuasa, Satoshi Yoshida, Taiga Kuragaki, Cao Minh Thi, Masayuki Nogami

    研究成果: ジャーナルへの寄稿記事

    8 引用 (Scopus)

    抄録

    In our present research, bottom-up self-assembly of gold (Au) nanoparticles on a flat copper (Cu) substrate is performed by a facile method. The very interesting evidence of self-assembly of Au nanoparticles on the top of the thin assembled layer was observed by scanning electron microscopy (SEM). We had discovered one of the most general and simple methods for the self-assembly of metal nanoparticles. The general physical and chemical mechanisms of the evaporation process of the solvents can be used for self-assembly of the as-prepared nanoparticles. The important roles of molecules of the used solvents are very critical to self-assembly of the as-prepared Au nanoparticles in the case without using any polymers for those processes. It is clear that self-assembly of such one nanosystem of the uniform Au nanoparticles is fully examined. Finally, an exciting surface plasmon resonance (SPR) phenomenon of the pure Au nanoparticles in the solvent was fully discovered in their exciting changes of the narrow and large SPR bands according to synthesis time. The SPR was considered as the collective oscillation of valence electrons of the surfaces of the pure Au nanoparticles in the solvent by incident ultraviolet-visible light. Then, the frequency of light photons matches the frequency of the oscillation of surface electrons of the Au nanoparticles that are excited.

    元の言語英語
    記事番号793125
    ジャーナルJournal of Nanomaterials
    2013
    DOI
    出版物ステータス出版済み - 4 5 2013

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    Polyols
    Gold
    Self assembly
    Nanoparticles
    Surface plasmon resonance
    Nanosystems
    polyol
    Electrons
    Metal nanoparticles
    Copper
    Polymers
    Evaporation
    Photons
    Scanning electron microscopy
    Molecules
    Substrates

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)

    これを引用

    Synthesis and self-assembly of gold nanoparticles by chemically modified polyol methods under experimental control. / Viet Long, Nguyen; Ohtaki, Michitaka; Yuasa, Masayoshi; Yoshida, Satoshi; Kuragaki, Taiga; Minh Thi, Cao; Nogami, Masayuki.

    :: Journal of Nanomaterials, 巻 2013, 793125, 05.04.2013.

    研究成果: ジャーナルへの寄稿記事

    Viet Long, Nguyen ; Ohtaki, Michitaka ; Yuasa, Masayoshi ; Yoshida, Satoshi ; Kuragaki, Taiga ; Minh Thi, Cao ; Nogami, Masayuki. / Synthesis and self-assembly of gold nanoparticles by chemically modified polyol methods under experimental control. :: Journal of Nanomaterials. 2013 ; 巻 2013.
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    abstract = "In our present research, bottom-up self-assembly of gold (Au) nanoparticles on a flat copper (Cu) substrate is performed by a facile method. The very interesting evidence of self-assembly of Au nanoparticles on the top of the thin assembled layer was observed by scanning electron microscopy (SEM). We had discovered one of the most general and simple methods for the self-assembly of metal nanoparticles. The general physical and chemical mechanisms of the evaporation process of the solvents can be used for self-assembly of the as-prepared nanoparticles. The important roles of molecules of the used solvents are very critical to self-assembly of the as-prepared Au nanoparticles in the case without using any polymers for those processes. It is clear that self-assembly of such one nanosystem of the uniform Au nanoparticles is fully examined. Finally, an exciting surface plasmon resonance (SPR) phenomenon of the pure Au nanoparticles in the solvent was fully discovered in their exciting changes of the narrow and large SPR bands according to synthesis time. The SPR was considered as the collective oscillation of valence electrons of the surfaces of the pure Au nanoparticles in the solvent by incident ultraviolet-visible light. Then, the frequency of light photons matches the frequency of the oscillation of surface electrons of the Au nanoparticles that are excited.",
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    AU - Yuasa, Masayoshi

    AU - Yoshida, Satoshi

    AU - Kuragaki, Taiga

    AU - Minh Thi, Cao

    AU - Nogami, Masayuki

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