Improved surface-enhanced Raman scattering on optimum electrochemically roughened silver substrates

Yu Chuan Liu; Chung Chin Yu; Sen Fu Sheu

doi:10.1016/j.aca.2006.06.062

Improved surface-enhanced Raman scattering on optimum electrochemically roughened silver substrates

Yu Chuan Liu, Chung Chin Yu, Sen Fu Sheu

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

In this work, the effects of preparation conditions used in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were first investigated. The optimum roughening conditions for obtaining strongest SERS of Rhodamine 6G (R6G) are as follows. Ag electrodes were cycled in deoxygenated aqueous solutions containing 0.1 M NaCl from -0.3 to +0.2 V versus Ag/AgCl at 25 mV s^-1 for five scans. The SERS of R6G adsorbed on this optimum procedure-prepared roughened Ag substrate exhibits a higher intensity by one order of magnitude, as compared with that of R6G adsorbed on a normally roughened Ag substrate.

Original language	English
Pages (from-to)	271-275
Number of pages	5
Journal	Analytica Chimica Acta
Volume	577
Issue number	2
DOIs	https://doi.org/10.1016/j.aca.2006.06.062
Publication status	Published - Sept 8 2006
Externally published	Yes

Keywords

Ag substrates
Oxidation-reduction cycles
Surface-enhanced Raman scattering

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Environmental Chemistry
Spectroscopy

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10.1016/j.aca.2006.06.062

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title = "Improved surface-enhanced Raman scattering on optimum electrochemically roughened silver substrates",

abstract = "In this work, the effects of preparation conditions used in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were first investigated. The optimum roughening conditions for obtaining strongest SERS of Rhodamine 6G (R6G) are as follows. Ag electrodes were cycled in deoxygenated aqueous solutions containing 0.1 M NaCl from -0.3 to +0.2 V versus Ag/AgCl at 25 mV s-1 for five scans. The SERS of R6G adsorbed on this optimum procedure-prepared roughened Ag substrate exhibits a higher intensity by one order of magnitude, as compared with that of R6G adsorbed on a normally roughened Ag substrate.",

keywords = "Ag substrates, Oxidation-reduction cycles, Surface-enhanced Raman scattering",

author = "Liu, {Yu Chuan} and Yu, {Chung Chin} and Sheu, {Sen Fu}",

note = "Funding Information: The authors thank the National Science Council of ROC (NSC-93-2214-E-238-001) and Vanung University for their financial support.",

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doi = "10.1016/j.aca.2006.06.062",

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T1 - Improved surface-enhanced Raman scattering on optimum electrochemically roughened silver substrates

AU - Liu, Yu Chuan

AU - Yu, Chung Chin

AU - Sheu, Sen Fu

N1 - Funding Information: The authors thank the National Science Council of ROC (NSC-93-2214-E-238-001) and Vanung University for their financial support.

PY - 2006/9/8

Y1 - 2006/9/8

N2 - In this work, the effects of preparation conditions used in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were first investigated. The optimum roughening conditions for obtaining strongest SERS of Rhodamine 6G (R6G) are as follows. Ag electrodes were cycled in deoxygenated aqueous solutions containing 0.1 M NaCl from -0.3 to +0.2 V versus Ag/AgCl at 25 mV s-1 for five scans. The SERS of R6G adsorbed on this optimum procedure-prepared roughened Ag substrate exhibits a higher intensity by one order of magnitude, as compared with that of R6G adsorbed on a normally roughened Ag substrate.

AB - In this work, the effects of preparation conditions used in roughening silver substrates by electrochemical triangular-wave oxidation-reduction cycles (ORC) on surface-enhanced Raman scattering (SERS) were first investigated. The optimum roughening conditions for obtaining strongest SERS of Rhodamine 6G (R6G) are as follows. Ag electrodes were cycled in deoxygenated aqueous solutions containing 0.1 M NaCl from -0.3 to +0.2 V versus Ag/AgCl at 25 mV s-1 for five scans. The SERS of R6G adsorbed on this optimum procedure-prepared roughened Ag substrate exhibits a higher intensity by one order of magnitude, as compared with that of R6G adsorbed on a normally roughened Ag substrate.

KW - Ag substrates

KW - Oxidation-reduction cycles

KW - Surface-enhanced Raman scattering

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Improved surface-enhanced Raman scattering on optimum electrochemically roughened silver substrates

Abstract

Keywords

ASJC Scopus subject areas

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