Effect of residual silver on surface-enhanced raman scattering of dealloyed nanoporous gold

Ling Zhang; Luyang Chen; Hongwen Liu; Ying Hou; Akihiko Hirata; Takeshi Fujita; Mingwei Chen

doi:10.1021/jp205892n

Effect of residual silver on surface-enhanced raman scattering of dealloyed nanoporous gold

Ling Zhang, Luyang Chen, Hongwen Liu, Ying Hou, Akihiko Hirata, Takeshi Fujita, Mingwei Chen^*

^*Corresponding author for this work

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

66 Citations (Scopus)

Abstract

Nanoporous gold films containing various amounts of residual silver have been synthesized by controllable dealloying and subsequent annealing for surface-enhanced Raman scattering (SERS). It was found that the residual Ag plays an important role in the SERS effect of dealloyed nanoporous gold. More residual Ag gives rise to better SERS effects when nanopore sizes are nearly identical. Moreover, homogenization of the residual silver by annealing can further improve the SERS enhancement of nanoporous Au-Ag alloys.

Original language	English
Pages (from-to)	19583-19587
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	115
Issue number	40
DOIs	https://doi.org/10.1021/jp205892n
Publication status	Published - 2011 Oct 13
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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abstract = "Nanoporous gold films containing various amounts of residual silver have been synthesized by controllable dealloying and subsequent annealing for surface-enhanced Raman scattering (SERS). It was found that the residual Ag plays an important role in the SERS effect of dealloyed nanoporous gold. More residual Ag gives rise to better SERS effects when nanopore sizes are nearly identical. Moreover, homogenization of the residual silver by annealing can further improve the SERS enhancement of nanoporous Au-Ag alloys.",

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AU - Zhang, Ling

AU - Chen, Luyang

AU - Liu, Hongwen

AU - Hou, Ying

AU - Hirata, Akihiko

AU - Fujita, Takeshi

AU - Chen, Mingwei

PY - 2011/10/13

Y1 - 2011/10/13

N2 - Nanoporous gold films containing various amounts of residual silver have been synthesized by controllable dealloying and subsequent annealing for surface-enhanced Raman scattering (SERS). It was found that the residual Ag plays an important role in the SERS effect of dealloyed nanoporous gold. More residual Ag gives rise to better SERS effects when nanopore sizes are nearly identical. Moreover, homogenization of the residual silver by annealing can further improve the SERS enhancement of nanoporous Au-Ag alloys.

AB - Nanoporous gold films containing various amounts of residual silver have been synthesized by controllable dealloying and subsequent annealing for surface-enhanced Raman scattering (SERS). It was found that the residual Ag plays an important role in the SERS effect of dealloyed nanoporous gold. More residual Ag gives rise to better SERS effects when nanopore sizes are nearly identical. Moreover, homogenization of the residual silver by annealing can further improve the SERS enhancement of nanoporous Au-Ag alloys.

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

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ER -

Effect of residual silver on surface-enhanced raman scattering of dealloyed nanoporous gold

Abstract

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