Electrochemically prepared surface-enhanced Raman scattering-active silver substrates with improved stabilities

Kuang Hsuan Yang; Yu-Chuan Liu; Chung Chin Yu; Bo Chuen Chen

doi:10.1016/j.saa.2010.10.024

Electrochemically prepared surface-enhanced Raman scattering-active silver substrates with improved stabilities

Kuang Hsuan Yang, Yu-Chuan Liu, Chung Chin Yu, Bo Chuen Chen

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

2 Citations (Scopus)

Abstract

In this work, SiO ₂ nanoparticles-modified surface-enhanced Raman scattering (SERS)-active silver substrates were prepared by electrochemical oxidation-reduction cycles (ORC) methods in 0.1 N HCl aqueous solutions containing 1 mM SiO ₂ nanoparticles to improve their thermal stabilities and anti-aging abilities in SERS performances. Then these SERS-active substrates were further modified with different contents of SiO ₂ nanoparticles to improve their corresponding SERS performances. Experimental results indicate that the operation temperature can be significantly raised from 125 to 175 °C based on this modified SERS-active Ag substrate. Also, the aging in SERS intensity is also depressed on this modified Ag substrate due to the contribution of SiO ₂ nanoparticles. Moreover, the SERS enhancement capability on this modified Ag substrate is gradually raised from 25 °C to a maximum at 55 °C and monotonically decreased from 55 to 60 °C. This is a 10 °C delay as compared with the similar phenomenon observed on the unmodified Ag substrate.

Original language	English
Pages (from-to)	383-388
Number of pages	6
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	78
Issue number	1
DOIs	https://doi.org/10.1016/j.saa.2010.10.024
Publication status	Published - Jan 2011

Keywords

Silver
SiO nanoparticles
Stability
Surface-enhanced Raman scattering

ASJC Scopus subject areas

Instrumentation
Atomic and Molecular Physics, and Optics
Analytical Chemistry
Spectroscopy

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10.1016/j.saa.2010.10.024

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@article{b27dc40aa5c24731997777178580b932,

title = "Electrochemically prepared surface-enhanced Raman scattering-active silver substrates with improved stabilities",

abstract = "In this work, SiO 2 nanoparticles-modified surface-enhanced Raman scattering (SERS)-active silver substrates were prepared by electrochemical oxidation-reduction cycles (ORC) methods in 0.1 N HCl aqueous solutions containing 1 mM SiO 2 nanoparticles to improve their thermal stabilities and anti-aging abilities in SERS performances. Then these SERS-active substrates were further modified with different contents of SiO 2 nanoparticles to improve their corresponding SERS performances. Experimental results indicate that the operation temperature can be significantly raised from 125 to 175 °C based on this modified SERS-active Ag substrate. Also, the aging in SERS intensity is also depressed on this modified Ag substrate due to the contribution of SiO 2 nanoparticles. Moreover, the SERS enhancement capability on this modified Ag substrate is gradually raised from 25 °C to a maximum at 55 °C and monotonically decreased from 55 to 60 °C. This is a 10 °C delay as compared with the similar phenomenon observed on the unmodified Ag substrate.",

keywords = "Silver, SiO nanoparticles, Stability, Surface-enhanced Raman scattering",

author = "Yang, {Kuang Hsuan} and Yu-Chuan Liu and Yu, {Chung Chin} and Chen, {Bo Chuen}",

year = "2011",

month = jan,

doi = "10.1016/j.saa.2010.10.024",

language = "English",

volume = "78",

pages = "383--388",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

issn = "1386-1425",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - Electrochemically prepared surface-enhanced Raman scattering-active silver substrates with improved stabilities

AU - Yang, Kuang Hsuan

AU - Liu, Yu-Chuan

AU - Yu, Chung Chin

AU - Chen, Bo Chuen

PY - 2011/1

Y1 - 2011/1

N2 - In this work, SiO 2 nanoparticles-modified surface-enhanced Raman scattering (SERS)-active silver substrates were prepared by electrochemical oxidation-reduction cycles (ORC) methods in 0.1 N HCl aqueous solutions containing 1 mM SiO 2 nanoparticles to improve their thermal stabilities and anti-aging abilities in SERS performances. Then these SERS-active substrates were further modified with different contents of SiO 2 nanoparticles to improve their corresponding SERS performances. Experimental results indicate that the operation temperature can be significantly raised from 125 to 175 °C based on this modified SERS-active Ag substrate. Also, the aging in SERS intensity is also depressed on this modified Ag substrate due to the contribution of SiO 2 nanoparticles. Moreover, the SERS enhancement capability on this modified Ag substrate is gradually raised from 25 °C to a maximum at 55 °C and monotonically decreased from 55 to 60 °C. This is a 10 °C delay as compared with the similar phenomenon observed on the unmodified Ag substrate.

AB - In this work, SiO 2 nanoparticles-modified surface-enhanced Raman scattering (SERS)-active silver substrates were prepared by electrochemical oxidation-reduction cycles (ORC) methods in 0.1 N HCl aqueous solutions containing 1 mM SiO 2 nanoparticles to improve their thermal stabilities and anti-aging abilities in SERS performances. Then these SERS-active substrates were further modified with different contents of SiO 2 nanoparticles to improve their corresponding SERS performances. Experimental results indicate that the operation temperature can be significantly raised from 125 to 175 °C based on this modified SERS-active Ag substrate. Also, the aging in SERS intensity is also depressed on this modified Ag substrate due to the contribution of SiO 2 nanoparticles. Moreover, the SERS enhancement capability on this modified Ag substrate is gradually raised from 25 °C to a maximum at 55 °C and monotonically decreased from 55 to 60 °C. This is a 10 °C delay as compared with the similar phenomenon observed on the unmodified Ag substrate.

KW - Silver

KW - SiO nanoparticles

KW - Stability

KW - Surface-enhanced Raman scattering

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DO - 10.1016/j.saa.2010.10.024

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VL - 78

SP - 383

EP - 388

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

IS - 1

ER -

Electrochemically prepared surface-enhanced Raman scattering-active silver substrates with improved stabilities

Abstract

Keywords

ASJC Scopus subject areas

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