Low concentration rhodamine 6G observed by surface-enhanced Raman scattering on optimally electrochemically roughened silver substrates

Yu Chuan Liu; Chung Chin Yu; Sen Fu Sheu

doi:10.1039/b609417a

Low concentration rhodamine 6G observed by surface-enhanced Raman scattering on optimally electrochemically roughened silver substrates

Yu Chuan Liu, Chung Chin Yu, Sen Fu Sheu

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64 Citations (Scopus)

Abstract

In this work, the effects of preparation conditions in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were investigated. Based on this prepared substrate, the practical limit of detection (LOD) of rhodamine 6G (R6G) can be reduced by six orders of magnitude from 2 × 10^-9 to 2 × 10^-15 M, as compared with that of R6G adsorbed on a general procedure-prepared roughened Ag substrate. Further investigations indicate that the content and the oxidation state of Cl on the roughened Ag substrate demonstrate decided effects on the observed SERS.

Original language	English
Pages (from-to)	3546-3551
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	16
Issue number	35
DOIs	https://doi.org/10.1039/b609417a
Publication status	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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title = "Low concentration rhodamine 6G observed by surface-enhanced Raman scattering on optimally electrochemically roughened silver substrates",

abstract = "In this work, the effects of preparation conditions in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were investigated. Based on this prepared substrate, the practical limit of detection (LOD) of rhodamine 6G (R6G) can be reduced by six orders of magnitude from 2 × 10-9 to 2 × 10-15 M, as compared with that of R6G adsorbed on a general procedure-prepared roughened Ag substrate. Further investigations indicate that the content and the oxidation state of Cl on the roughened Ag substrate demonstrate decided effects on the observed SERS.",

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year = "2006",

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journal = "Journal of Materials Chemistry",

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publisher = "Royal Society of Chemistry",

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AU - Liu, Yu Chuan

AU - Yu, Chung Chin

AU - Sheu, Sen Fu

PY - 2006

Y1 - 2006

N2 - In this work, the effects of preparation conditions in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were investigated. Based on this prepared substrate, the practical limit of detection (LOD) of rhodamine 6G (R6G) can be reduced by six orders of magnitude from 2 × 10-9 to 2 × 10-15 M, as compared with that of R6G adsorbed on a general procedure-prepared roughened Ag substrate. Further investigations indicate that the content and the oxidation state of Cl on the roughened Ag substrate demonstrate decided effects on the observed SERS.

AB - In this work, the effects of preparation conditions in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were investigated. Based on this prepared substrate, the practical limit of detection (LOD) of rhodamine 6G (R6G) can be reduced by six orders of magnitude from 2 × 10-9 to 2 × 10-15 M, as compared with that of R6G adsorbed on a general procedure-prepared roughened Ag substrate. Further investigations indicate that the content and the oxidation state of Cl on the roughened Ag substrate demonstrate decided effects on the observed SERS.

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JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 35

ER -

Low concentration rhodamine 6G observed by surface-enhanced Raman scattering on optimally electrochemically roughened silver substrates

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