Surface-enhanced nonresonance Raman scattering from size- and morphology-controlled gold nanoparticle films

Mototsugu Suzuki; Yasuro Niidome; Yutaka Kuwahara; Nao Terasaki; Kazuma Inoue; Sunao Yamada

doi:10.1021/jp0490150

Surface-enhanced nonresonance Raman scattering from size- and morphology-controlled gold nanoparticle films

Mototsugu Suzuki, Yasuro Niidome, Yutaka Kuwahara, Nao Terasaki, Kazuma Inoue, Sunao Yamada

Research output: Contribution to journal › Article › peer-review

130 Citations (Scopus)

Abstract

Gold nanoparticle films with different particles sizes (35 ± 5, 15 ± 1 nm) and agglomerated states were prepared on glass substrates, by salting-out the colloidal solutions with NaC1O₄ or NaOH. An ethanol solution of rhodamine 6G was cast on the gold nanoparticle film and the surface-enhanced Raman scattering (SERS) spectrum was measured. We found that the intensity of the SERS signal was higher for the film with larger particles and that the film prepared from NaClO₄ gave higher SERS signals than that prepared from NaOH. Considerable coalescence of larger gold nanoparticles was quite effective for obtaining larger SERS signals. The SERS enhancement factor was estimated to be ∼10⁸ for the film prepared from NaClO₄.

Original language	English
Pages (from-to)	11660-11665
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	108
Issue number	31
DOIs	https://doi.org/10.1021/jp0490150
Publication status	Published - Aug 5 2004

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "Gold nanoparticle films with different particles sizes (35 ± 5, 15 ± 1 nm) and agglomerated states were prepared on glass substrates, by salting-out the colloidal solutions with NaC1O4 or NaOH. An ethanol solution of rhodamine 6G was cast on the gold nanoparticle film and the surface-enhanced Raman scattering (SERS) spectrum was measured. We found that the intensity of the SERS signal was higher for the film with larger particles and that the film prepared from NaClO4 gave higher SERS signals than that prepared from NaOH. Considerable coalescence of larger gold nanoparticles was quite effective for obtaining larger SERS signals. The SERS enhancement factor was estimated to be ∼108 for the film prepared from NaClO4.",

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T1 - Surface-enhanced nonresonance Raman scattering from size- and morphology-controlled gold nanoparticle films

AU - Suzuki, Mototsugu

AU - Niidome, Yasuro

AU - Kuwahara, Yutaka

AU - Terasaki, Nao

AU - Inoue, Kazuma

AU - Yamada, Sunao

PY - 2004/8/5

Y1 - 2004/8/5

N2 - Gold nanoparticle films with different particles sizes (35 ± 5, 15 ± 1 nm) and agglomerated states were prepared on glass substrates, by salting-out the colloidal solutions with NaC1O4 or NaOH. An ethanol solution of rhodamine 6G was cast on the gold nanoparticle film and the surface-enhanced Raman scattering (SERS) spectrum was measured. We found that the intensity of the SERS signal was higher for the film with larger particles and that the film prepared from NaClO4 gave higher SERS signals than that prepared from NaOH. Considerable coalescence of larger gold nanoparticles was quite effective for obtaining larger SERS signals. The SERS enhancement factor was estimated to be ∼108 for the film prepared from NaClO4.

AB - Gold nanoparticle films with different particles sizes (35 ± 5, 15 ± 1 nm) and agglomerated states were prepared on glass substrates, by salting-out the colloidal solutions with NaC1O4 or NaOH. An ethanol solution of rhodamine 6G was cast on the gold nanoparticle film and the surface-enhanced Raman scattering (SERS) spectrum was measured. We found that the intensity of the SERS signal was higher for the film with larger particles and that the film prepared from NaClO4 gave higher SERS signals than that prepared from NaOH. Considerable coalescence of larger gold nanoparticles was quite effective for obtaining larger SERS signals. The SERS enhancement factor was estimated to be ∼108 for the film prepared from NaClO4.

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Surface-enhanced nonresonance Raman scattering from size- and morphology-controlled gold nanoparticle films

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