Improved surface-enhanced Raman scattering on optimum electrochemically roughened silver substrates

Yu Chuan Liu, Chung Chin Yu, Sen Fu Sheu

研究成果: 雜誌貢獻文章同行評審

13 引文 斯高帕斯(Scopus)

摘要

In this work, the effects of preparation conditions used in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were first investigated. The optimum roughening conditions for obtaining strongest SERS of Rhodamine 6G (R6G) are as follows. Ag electrodes were cycled in deoxygenated aqueous solutions containing 0.1 M NaCl from -0.3 to +0.2 V versus Ag/AgCl at 25 mV s-1 for five scans. The SERS of R6G adsorbed on this optimum procedure-prepared roughened Ag substrate exhibits a higher intensity by one order of magnitude, as compared with that of R6G adsorbed on a normally roughened Ag substrate.

原文英語
頁(從 - 到)271-275
頁數5
期刊Analytica Chimica Acta
577
發行號2
DOIs
出版狀態已發佈 - 九月 8 2006
對外發佈

ASJC Scopus subject areas

  • 分析化學
  • 生物化學
  • 環境化學
  • 光譜

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