Effects of substrate temperatures on improved surface-enhanced Raman scattering

Kuang Hsuan Yang, Yu Chuan Liu, Chung Chin Yu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

In this work, electrochemical methods were used to prepare surface-enhanced Raman scattering (SERS)-active gold substrates to investigate the effect of substrate temperatures on improved SERS performances. The results indicate that the SERS enhancement capabilities are gradually raised from 25 °C to a maximum at 40 °C and monotonically decreased from 40 to 100 °C. The SERS of rhodamine 6G (R6G) adsorbed on the SERS-active substrate at 40 °C exhibits a higher intensity by 4-fold of magnitude, as compared with that of R6G adsorbed on the SERS-active substrate at 25 °C. Also, SERS of polypyrrole (PPy) deposited on the roughened Au substrate treated at 35 °C exhibits the highest intensity by 3-fold of magnitude, as compared with that of PPy deposited on the same roughened Au substrate at room temperature.

Original languageEnglish
Pages (from-to)4202-4207
Number of pages6
JournalElectrochimica Acta
Volume54
Issue number17
DOIs
Publication statusPublished - Jul 1 2009
Externally publishedYes

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Keywords

  • Gold substrate
  • Oxidation-reduction cycles
  • Surface-enhanced Raman scattering
  • Temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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