Strategy to improve stability of surface-enhanced raman scattering-active Ag substrates

Kuang Hsuan Yang, Yu Chuan Liu, Ting Chu Hsu, Ming Yu Juang

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Surface-enhanced Raman scattering (SERS)-active Ag substrates were popularly employed for evaluating the structural situation of analytes because SERS-active Ag substrates can demonstrate more significant SERS effects than Au and Cu substrates. However, the stability of SERS-active Ag substrates is an issue of concern in their application. In this work, SERS-active modified Ag substrates were simply prepared in 0.1 N HCl solutions containing Al 2O3 nanoparticles by electrochemical methods. Experimental results indicate that the Al2O3-modified Ag substrate can significantly improve its thermal stability by raising the operation temperature of the Ag substrate by over 100 °C. Moreover, the aging of SERS enhancement capabilities in an atmosphere of 50% relative humidity (RH) and 20% (v/v) O2 at 30 °C is markedly depressed based on this Al 2O3-modified Ag substrate.

Original languageEnglish
Pages (from-to)7530-7535
Number of pages6
JournalJournal of Materials Chemistry
Volume20
Issue number35
DOIs
Publication statusPublished - Sep 21 2010

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Raman scattering
Substrates
Atmospheric humidity
Thermodynamic stability
Aging of materials
Nanoparticles

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)

Cite this

Strategy to improve stability of surface-enhanced raman scattering-active Ag substrates. / Yang, Kuang Hsuan; Liu, Yu Chuan; Hsu, Ting Chu; Juang, Ming Yu.

In: Journal of Materials Chemistry, Vol. 20, No. 35, 21.09.2010, p. 7530-7535.

Research output: Contribution to journalArticle

Yang, Kuang Hsuan ; Liu, Yu Chuan ; Hsu, Ting Chu ; Juang, Ming Yu. / Strategy to improve stability of surface-enhanced raman scattering-active Ag substrates. In: Journal of Materials Chemistry. 2010 ; Vol. 20, No. 35. pp. 7530-7535.
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