skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Plasmonic nanohole array for enhancing the SERS signal of a single layer of graphene in water

Abstract

In this study, we numerically design and experimentally test a SERS-active substrate for enhancing the SERS signal of a single layer of graphene (SLG) in water. The SLG is placed on top of an array of silver-covered nanoholes in a polymer and is covered with water. Here we report a large enhancement of up to 2×10 5 in the SERS signal of the SLG on the patterned plasmonic nanostructure for a 532nm excitation laser wavelength. We provide a detailed study of the light-graphene interactions by investigating the optical absorption in the SLG, the density of optical states at the location of the SLG, and the extraction efficiency of the SERS signal of the SLG. Our numerical calculations of both the excitation field and the emission rate enhancements support the experimental results. We find that the enhancement is due to the increase in the confinement of electromagnetic fields on the location of the SLG that results in enhanced light absorption in the graphene at the excitation wavelength. We also find that water droplets increase the density of optical radiative states at the location of the SLG, leading to enhanced spontaneous emission rate of graphene at its Raman emission wavelengths.

Authors:
ORCiD logo [1];  [2];  [3];  [3]; ORCiD logo [4];  [1]
  1. Louisiana State Univ., Baton Rouge, LA (United States). School of Electrical Engineering and Computer Sciences and Center for Computation and Technology
  2. Intel Corp., Hillsboro, OR (United States)
  3. Univ. of Illinois, Urbana, IL (United States). Dept. of Electrical and Computer Engineering
  4. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Mechanical and Industrial Engineering
Publication Date:
Research Org.:
Louisiana State Univ., Baton Rouge, LA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Science Foundation (NSF); Louisiana Board of Regents
OSTI Identifier:
1432833
Grant/Contract Number:  
EE0007981; 1102301; 1254934; 1660233; LEQSF(2017-20)-RD-A-04; LEQSF(2017-18)-ENH-TR-08)
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 97 MATHEMATICS AND COMPUTING; 36 MATERIALS SCIENCE; optical sensors; Raman spectroscopy

Citation Formats

Mahigir, Amirreza, Chang, Te-Wei, Behnam, Ashkan, Liu, Gang Logan, Gartia, Manas Ranjan, and Veronis, Georgios. Plasmonic nanohole array for enhancing the SERS signal of a single layer of graphene in water. United States: N. p., 2017. Web. doi:10.1038/s41598-017-14369-x.
Mahigir, Amirreza, Chang, Te-Wei, Behnam, Ashkan, Liu, Gang Logan, Gartia, Manas Ranjan, & Veronis, Georgios. Plasmonic nanohole array for enhancing the SERS signal of a single layer of graphene in water. United States. doi:10.1038/s41598-017-14369-x.
Mahigir, Amirreza, Chang, Te-Wei, Behnam, Ashkan, Liu, Gang Logan, Gartia, Manas Ranjan, and Veronis, Georgios. Wed . "Plasmonic nanohole array for enhancing the SERS signal of a single layer of graphene in water". United States. doi:10.1038/s41598-017-14369-x. https://www.osti.gov/servlets/purl/1432833.
@article{osti_1432833,
title = {Plasmonic nanohole array for enhancing the SERS signal of a single layer of graphene in water},
author = {Mahigir, Amirreza and Chang, Te-Wei and Behnam, Ashkan and Liu, Gang Logan and Gartia, Manas Ranjan and Veronis, Georgios},
abstractNote = {In this study, we numerically design and experimentally test a SERS-active substrate for enhancing the SERS signal of a single layer of graphene (SLG) in water. The SLG is placed on top of an array of silver-covered nanoholes in a polymer and is covered with water. Here we report a large enhancement of up to 2×105 in the SERS signal of the SLG on the patterned plasmonic nanostructure for a 532nm excitation laser wavelength. We provide a detailed study of the light-graphene interactions by investigating the optical absorption in the SLG, the density of optical states at the location of the SLG, and the extraction efficiency of the SERS signal of the SLG. Our numerical calculations of both the excitation field and the emission rate enhancements support the experimental results. We find that the enhancement is due to the increase in the confinement of electromagnetic fields on the location of the SLG that results in enhanced light absorption in the graphene at the excitation wavelength. We also find that water droplets increase the density of optical radiative states at the location of the SLG, leading to enhanced spontaneous emission rate of graphene at its Raman emission wavelengths.},
doi = {10.1038/s41598-017-14369-x},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {Wed Oct 25 00:00:00 EDT 2017},
month = {Wed Oct 25 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Surface raman spectroelectrochemistry: Part I. Heterocyclic, aromatic, and aliphatic amines adsorbed on the anodized silver electrode
journal, November 1977

  • Jeanmaire, David L.; Van Duyne, Richard P.
  • Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, Vol. 84, Issue 1, p. 1-20
  • DOI: 10.1016/S0022-0728(77)80224-6

Raman spectra of pyridine adsorbed at a silver electrode
journal, May 1974


Shell-isolated nanoparticle-enhanced Raman spectroscopy
journal, March 2010

  • Li, Jian Feng; Huang, Yi Fan; Ding, Yong
  • Nature, Vol. 464, Issue 7287, p. 392-395
  • DOI: 10.1038/nature08907