Effect of argon plasma treatment on surface-enhanced Raman spectroscopy of polypyrrole deposited on electrochemically roughened gold substrates

Yu Chuan Liu, Chee Chan Wang

研究成果: 雜誌貢獻文章同行評審

32 引文 斯高帕斯(Scopus)

摘要

In this work, polypyrrole (PPy) films were electrodeposited on electrochemically roughened gold substrates modified by argon plasma treatment. First, a gold substrate was roughened by a triangular-wave oxidation-reduction cycle (ORC) in an aqueous solution containing 0.1 N HCl. Then the roughened gold substrate was further treated by argon plasma. Encouragingly, the surface-enhanced Raman scattering (SERS) spectroscopy of polypyrrole electrodeposited on this roughened gold substrate modified by argon plasma treatment exhibits a higher intensity by 8-fold, as compared with the SERS of PPy electrodeposited on an unmodified roughened gold substrate. Meanwhile, the electropolymerization for pyrrole monomers occurring on the modified roughened gold substrate is easier. Also, the nucleation and growth of electropolymerization of pyrrole monomers on the modified and unmodified gold substrates are different.

原文英語
頁(從 - 到)5779-5782
頁數4
期刊Journal of Physical Chemistry B
109
發行號12
DOIs
出版狀態已發佈 - 三月 31 2005
對外發佈Yes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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