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 journalArticle

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 languageEnglish
Pages (from-to)383-388
Number of pages6
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume78
Issue number1
DOIs
Publication statusPublished - Jan 2011

Fingerprint

Silver
Raman scattering
silver
Raman spectra
Substrates
Nanoparticles
nanoparticles
Aging of materials
electrochemical oxidation
Electrochemical oxidation
Thermodynamic stability
thermal stability
aqueous solutions
cycles
augmentation

Keywords

  • Silver
  • SiO nanoparticles
  • Stability
  • Surface-enhanced Raman scattering

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Spectroscopy

Cite this

Electrochemically prepared surface-enhanced Raman scattering-active silver substrates with improved stabilities. / Yang, Kuang Hsuan; Liu, Yu-Chuan; Yu, Chung Chin; Chen, Bo Chuen.

In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 78, No. 1, 01.2011, p. 383-388.

Research output: Contribution to journalArticle

@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 = "1",
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

UR - http://www.scopus.com/inward/record.url?scp=78650681210&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650681210&partnerID=8YFLogxK

U2 - 10.1016/j.saa.2010.10.024

DO - 10.1016/j.saa.2010.10.024

M3 - Article

C2 - 21145781

AN - SCOPUS:78650681210

VL - 78

SP - 383

EP - 388

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

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

SN - 1386-1425

IS - 1

ER -