Reproducible and recyclable SERS substrates : Flower-like Ag structures with concave surfaces formed by electrodeposition

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

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Author(s)

  • Juncao Bian
  • Shiwei Shu
  • Jianfu Li

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)126-133
Journal / PublicationApplied Surface Science
Volume333
Online published7 Feb 2015
Publication statusPublished - 1 Apr 2015

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84930459360&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(fef159d8-81b8-4faf-909f-52a5389a6741).html

Abstract

Direct synthesis of three-dimensional Ag structures on solid substrates for the purposes of producing reproducible and recyclable surface-enhanced Raman scattering (SERS) applications remains challenging. In this work, flower-like Ag structures with concave surfaces (FACS) were successfully electrodeposited onto ITO glass using the double-potentiostatic method. The FACS, with an enhancement factor of the order of 108, exhibited a SERS signal intensity 3.3 times stronger than that measured from Ag nanostructures without concave surfaces. A cleaning procedure involving lengthy immersion of the sample in ethanol and KNO3 was proposed to recycle the substrate and confirmed by using rhodamine 6G, adenine, and 4-aminothiophenol as target molecules. The findings can help to advance the practical applications of Ag nanostructure-based SERS substrates.

Research Area(s)

  • Ag, Concave surface, Recyclable, Reproducible, SERS

Fingerprint

Publication fingerprints text

100
Electrodeposition Material Science
100
Surface-Enhanced Ra... Material Science
100
Concave Surface Keyphrases
100
Flower-like Keyphrases
100
Surface-enhanced Ra... Keyphrases
100
substrates INIS
100
surfaces INIS
100
raman effect INIS
100
electrodeposition INIS
100
flowers INIS
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Citation Format(s)

[ RIS ] [ BibTeX ]
Reproducible and recyclable SERS substrates: Flower-like Ag structures with concave surfaces formed by electrodeposition. / Bian, Juncao; Shu, Shiwei; Li, Jianfu et al.
In: Applied Surface Science, Vol. 333, 01.04.2015, p. 126-133.

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