Dimension- and Direction-Controlled Gold Nanorods Deposited in Ordered Mesoporous Silica

G. Kawamura; Ikuo Hayashi; Rahmat Ali Fitrah; Hiroyuki Muto; Junichi Hamagami; Atsunori Matsuda

doi:10.4028/www.scientific.net/AST.63.126

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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 63Dimension- and Direction-Controlled Gold Nanorods...

Dimension- and Direction-Controlled Gold Nanorods Deposited in Ordered Mesoporous Silica

Abstract:

Gold nanorods (GNRs) were deposited in ordered mesoporous silica SBA-15 by a liquid-phase synthesis. The X-ray diffraction pattern of GNRs-deposited SBA-15 (GNRs/SBA-15) confirmed that the mesoporous structure of the SBA-15 was maintained even after depositing GNRs in the SBA-15 pores. Laser irradiation and heat treatment for GNRs/SBA-15 were carried out to check the effect on the GNRs morphology alteration. These treatments were found to shorten the length of the GNRs in SBA-15, leading to a blue shift of the surface plasmon resonance wavelength of the GNRs. Especially, heat treatment at high temperatures, e.g. at 500 °C, showed unique result that the inner wall of SBA-15 was collapsed by the overgrowth of gold nanoparticles.

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Advances in Science and Technology (Volume 63)

Pages:

126-130

DOI:

https://doi.org/10.4028/www.scientific.net/AST.63.126

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Online since:

October 2010

Authors:

G. Kawamura, Ikuo Hayashi, Rahmat Ali Fitrah, Hiroyuki Muto, Junichi Hamagami, Atsunori Matsuda

Keywords:

Gold Nanorod, Mesoporous Silica, Solution Phase Synthesis, Surface Plasmon Resonance (SPR)

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