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Title: Synthesis of silver particles on copper substrates using ethanol-based solution for surface-enhanced Raman spectroscopy

Abstract

The displacement reaction of AgNO{sub 3} and copper metal is an effective and economical way to fabricate Ag-Cu surface enhanced Raman scattering (SERS) substrates. Aqueous solutions of AgNO{sub 3} are usually used for substrate preparation. In this work, a new method for Ag-Cu SERS substrate preparation is proposed, which uses an ethanol solution rather than an aqueous AgNO{sub 3} solution. Analysis of the surface morphologies of sample substrates by field emission scanning electron microscopy (FESEM) showed that the silver nanoparticles prepared by this new method were more regular than those prepared in the traditional aqueous solution. The SERS spectra of Rhodamine 6G (R6G) adsorbed on these Ag-Cu substrates were then investigated and compared. It was found that the Ag-Cu substrates prepared by this method provide significant improvements in Raman signal sensitivity and large-area uniformity. The enhancement factor of this new substrate is about 330 times higher than that prepared using an aqueous AgNO{sub 3} solution under identical experimental conditions. It was also found that 70% of the original sensitivity of the substrate remains after 15 days of exposure to air.

Authors:
; ; ;  [1];  [1]
  1. Defense Key Disciplines Lab of Novel Micro-nano Devices and System Technology, and Key Laboratory of Optoelectronic Technology and Systems, Chongqing University, Chongqing 400044 (China)
Publication Date:
OSTI Identifier:
22250887
Resource Type:
Journal Article
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 4; Journal Issue: 3; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2158-3226
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AQUEOUS SOLUTIONS; COPPER; ETHANOL; FIELD EMISSION; NANOSTRUCTURES; RAMAN EFFECT; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SENSITIVITY; SILVER; SILVER NITRATES; SPECTRA; SUBSTRATES; SURFACES; SYNTHESIS

Citation Formats

Chen, Li, Zhang, Zuojun, Chen, Gang, Zhou, Hui, Lai, Chunhong, and School of Physics and Electronic Information, China West Normal University, NanChong 637002. Synthesis of silver particles on copper substrates using ethanol-based solution for surface-enhanced Raman spectroscopy. United States: N. p., 2014. Web. doi:10.1063/1.4868370.
Chen, Li, Zhang, Zuojun, Chen, Gang, Zhou, Hui, Lai, Chunhong, & School of Physics and Electronic Information, China West Normal University, NanChong 637002. Synthesis of silver particles on copper substrates using ethanol-based solution for surface-enhanced Raman spectroscopy. United States. https://doi.org/10.1063/1.4868370
Chen, Li, Zhang, Zuojun, Chen, Gang, Zhou, Hui, Lai, Chunhong, and School of Physics and Electronic Information, China West Normal University, NanChong 637002. 2014. "Synthesis of silver particles on copper substrates using ethanol-based solution for surface-enhanced Raman spectroscopy". United States. https://doi.org/10.1063/1.4868370.
@article{osti_22250887,
title = {Synthesis of silver particles on copper substrates using ethanol-based solution for surface-enhanced Raman spectroscopy},
author = {Chen, Li and Zhang, Zuojun and Chen, Gang and Zhou, Hui and Lai, Chunhong and School of Physics and Electronic Information, China West Normal University, NanChong 637002},
abstractNote = {The displacement reaction of AgNO{sub 3} and copper metal is an effective and economical way to fabricate Ag-Cu surface enhanced Raman scattering (SERS) substrates. Aqueous solutions of AgNO{sub 3} are usually used for substrate preparation. In this work, a new method for Ag-Cu SERS substrate preparation is proposed, which uses an ethanol solution rather than an aqueous AgNO{sub 3} solution. Analysis of the surface morphologies of sample substrates by field emission scanning electron microscopy (FESEM) showed that the silver nanoparticles prepared by this new method were more regular than those prepared in the traditional aqueous solution. The SERS spectra of Rhodamine 6G (R6G) adsorbed on these Ag-Cu substrates were then investigated and compared. It was found that the Ag-Cu substrates prepared by this method provide significant improvements in Raman signal sensitivity and large-area uniformity. The enhancement factor of this new substrate is about 330 times higher than that prepared using an aqueous AgNO{sub 3} solution under identical experimental conditions. It was also found that 70% of the original sensitivity of the substrate remains after 15 days of exposure to air.},
doi = {10.1063/1.4868370},
url = {https://www.osti.gov/biblio/22250887}, journal = {AIP Advances},
issn = {2158-3226},
number = 3,
volume = 4,
place = {United States},
year = {Sat Mar 15 00:00:00 EDT 2014},
month = {Sat Mar 15 00:00:00 EDT 2014}
}