Improved performance of surface-enhanced Raman scattering on silver substrates prepared in nitric acid solutions

Fu Der Mai, Ting Chu Hsu, Yu Chuan Liu, Kuang Hsuan Yang

研究成果: 雜誌貢獻文章

8 引文 (Scopus)

摘要

In this work, we propose a new electrochemical method to prepare surface-enhanced Raman scattering (SERS)-active silver substrates in nitric acid solutions. Experimental results indicate that the SERS intensity of adsorbed Rhodamine 6G (R6G) can be significantly increased, as compared with that of R6G adsorbed on a SERS-active Ag substrate prepared by an electrochemical method in a chloride-containing solution, which was generally employed in the literature. Moreover, the SERS of R6G on the newly developed substrate (prepared in a nitric acid solution) still performs well at a high temperature of 250°C. However, the enhancement capability of the SERS-active substrate prepared in a chloride-containing solution is seriously destroyed at temperatures higher than 150°C. Further investigations indicate that the oxidation states of roughened Ag substrates prepared in nitric acid solutions under different experiment conditions have less influence on the corresponding SERS performances. Instead, different surface morphologies of roughened Ag substrates and different contents of nitrogen-containing dopping ions on the roughened Ag substrates demonstrate significant effects on the corresponding SERS performances.

原文英語
頁(從 - 到)724-729
頁數6
期刊Journal of Raman Spectroscopy
43
發行號6
DOIs
出版狀態已發佈 - 六月 2012

指紋

Nitric Acid
Nitric acid
Silver
Raman scattering
Substrates
Chlorides
Surface morphology
Nitrogen
Ions
Oxidation
Temperature

ASJC Scopus subject areas

  • Spectroscopy
  • Materials Science(all)

引用此文

Improved performance of surface-enhanced Raman scattering on silver substrates prepared in nitric acid solutions. / Mai, Fu Der; Hsu, Ting Chu; Liu, Yu Chuan; Yang, Kuang Hsuan.

於: Journal of Raman Spectroscopy, 卷 43, 編號 6, 06.2012, p. 724-729.

研究成果: 雜誌貢獻文章

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