Contributions of cationic and elemental gold on roughened gold substrates to surface-enhanced Raman scattering

Chung Chin Yu, Yu Chuan Liu

研究成果: 雜誌貢獻文章同行評審

10 引文 斯高帕斯(Scopus)

摘要

In this work, the contributions of cationic and elemental gold on roughened gold substrates to surface-enhanced Raman scattering (SERS) of polypyrrole (PPy) films were first investigated. First, a gold substrate was roughened by a triangular wave oxidation-reduction cycle (ORC) in an aqueous solution containing 0.1 M KCl. Then, the roughened gold substrate was further reduced by applying a cathodic potential for a fixed time to control the quantity of unreduced cationic Au on the roughened Au substrate. The result indicates that the content of cationic Au is responsible for the improved SERS of PPy electrodeposited on this roughened Au substrate. This phenomenon can be attributed to the interfacial charge transfer from PPy to the roughened Au substrate by the aid of cationic Au.

原文英語
頁(從 - 到)130-135
頁數6
期刊Analytica Chimica Acta
566
發行號1
DOIs
出版狀態已發佈 - 四月 27 2006
對外發佈

ASJC Scopus subject areas

  • 生物化學
  • 分析化學
  • 光譜
  • 環境化學

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