Influence of drying treatment to electrochemically roughened Ag substrates on the corresponding surface-enhanced Raman scattering performances

Keng Liang Ou, Ting Chu Hsu, Yu Chuan Liu, Kuang Hsuan Yang

研究成果: 雜誌貢獻文章同行評審

4 引文 斯高帕斯(Scopus)

摘要

For obtaining metal-island films on substrates with activity of surface-enhanced Raman scattering (SERS), a controllable and reproducible surface roughness can be easily generated by using electrochemical oxidation-reduction cycle (ORC) procedures. However, different preparation procedures could significantly change their corresponding SERS activities. In this study, SERS-active Ag substrates were prepared by using triangular-wave ORC procedures in 0.1 M KCl solutions. Before the adsorptions of probe molecules on these Ag substrates one substrate was further dried in a vacuum-dryer. Interestingly, the SERS activity of this dried Ag substrate is significantly reduced due to this additional treatment. Experimental results indicate that this phenomenon can be ascribed to the correspondingly significant decrease in content of Cl-containing complexes formed on the interface of the roughened Ag metal.

原文英語
頁(從 - 到)892-896
頁數5
期刊Materials Chemistry and Physics
135
發行號2-3
DOIs
出版狀態已發佈 - 八月 15 2012

ASJC Scopus subject areas

  • 材料科學(全部)
  • 凝聚態物理學

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