Silver nanoparticles protected by monolayer graphene as a stabilized substrate for surface enhanced Raman spectroscopy

Xueying Li, Jing Li, Xuemei Zhou, Yuanyuan Ma, Zhiping Zheng, Xiangfeng Duan, Yongquan Qu

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Silver nanostructures have been extensively studied as the substrates for surface-enhanced Raman spectroscopy (SERS) due to their strong plasmonic enhancement effect and low loss at optical frequencies. However, unprotected silver nanostructures are chemically unstable under practical conditions, leading frequently to erratic SERS signals and possibly unreliable interpretation of experimental results. Herein, we show that a single layer of graphene grown by chemical vapor deposition can effectively stabilize silver nanoparticles against aerobic oxidation and that the protected nanoparticles can be used as a stable substrate for the production of enhanced SERS signals for up to 28 days under ambient conditions.

Original languageEnglish (US)
Pages (from-to)713-719
Number of pages7
JournalCarbon
Volume66
DOIs
StatePublished - Jan 2014

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Silver
Graphene
Raman spectroscopy
Monolayers
Nanoparticles
Nanostructures
Substrates
Chemical vapor deposition
Oxidation

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Silver nanoparticles protected by monolayer graphene as a stabilized substrate for surface enhanced Raman spectroscopy. / Li, Xueying; Li, Jing; Zhou, Xuemei; Ma, Yuanyuan; Zheng, Zhiping; Duan, Xiangfeng; Qu, Yongquan.

In: Carbon, Vol. 66, 01.2014, p. 713-719.

Research output: Contribution to journalArticle

Li, Xueying ; Li, Jing ; Zhou, Xuemei ; Ma, Yuanyuan ; Zheng, Zhiping ; Duan, Xiangfeng ; Qu, Yongquan. / Silver nanoparticles protected by monolayer graphene as a stabilized substrate for surface enhanced Raman spectroscopy. In: Carbon. 2014 ; Vol. 66. pp. 713-719.
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