Low concentration rhodamine 6G observed by surface-enhanced Raman scattering on optimally electrochemically roughened silver substrates

Yu Chuan Liu, Chung Chin Yu, Sen F. Sheu

研究成果: 雜誌貢獻文章同行評審

60 引文 斯高帕斯(Scopus)

摘要

In this work, the effects of preparation conditions in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were investigated. Based on this prepared substrate, the practical limit of detection (LOD) of rhodamine 6G (R6G) can be reduced by six orders of magnitude from 2 × 10-9 to 2 × 10-15 M, as compared with that of R6G adsorbed on a general procedure-prepared roughened Ag substrate. Further investigations indicate that the content and the oxidation state of Cl on the roughened Ag substrate demonstrate decided effects on the observed SERS.

原文英語
頁(從 - 到)3546-3551
頁數6
期刊Journal of Materials Chemistry
16
發行號35
DOIs
出版狀態已發佈 - 2006
對外發佈

ASJC Scopus subject areas

  • 物理與理論化學
  • 材料科學(全部)
  • 材料化學

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