Electrochemically fabricated nanovolcano arrays for SERS applications

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

  • Chun Kwan Tsang
  • Shiwei Shu
  • Fengxia Liang
  • Jie Zhang
  • Lingxia Zheng

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)29-34
Journal / PublicationJournal of Raman Spectroscopy
Volume44
Issue number1
Publication statusPublished - Jan 2013

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84872154914&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(4246968b-104c-427a-a2b4-50bc76adf2af).html

Abstract

Nanovolcano arrays were fabricated by electrodepositing Ni/Cu alloys into a monolayer of self-assembled nanospheres and then electrochemically etching the deposited alloy film. The fabricated nanovolcano arrays feature highly ordered hexagonally arranged concave nanobowls decorated with triangular nanopores at their interstices. After coated with Ag, the nanovolcano arrays serve as high-performance substrates for surface enhancement Raman spectroscopy (SERS) measurements. The experimental study shows that the structural features of the nanovolcano arrays, including concave nanobowls, nanopores, and their long-range orders, all contribute to the observed strong SERS enhancement in a synergetic manner, which is further confirmed by the simulation results obtained using the finite-difference time-domain method. Copyright © 2012 John Wiley & Sons, Ltd.

Research Area(s)

  • colloidal self-assembly, dealloy, electrodeposition, surface enhancement Raman spectroscopy

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Publication fingerprints text

100
Surface-enhanced Ra... Keyphrases
100
electrochemistry INIS
100
raman spectroscopy INIS
100
surfaces INIS
100
applications INIS
100
Raman Spectroscopy Material Science
100
Surface (Surface Sc... Material Science
66
Nanopore Keyphrases
66
Nanobowl Keyphrases
66
alloys INIS
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Citation Format(s)

[ RIS ] [ BibTeX ]
Electrochemically fabricated nanovolcano arrays for SERS applications. / Tsang, Chun Kwan; Shu, Shiwei; Liang, Fengxia et al.
In: Journal of Raman Spectroscopy, Vol. 44, No. 1, 01.2013, p. 29-34.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review