Cargando…

Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors

[Image: see text] Two-dimensional–zero-dimensional plasmonic hybrids involving defective graphene and transition metals (DGR-TM) have drawn significant interest due to their near-field plasmonic effects in the wide range of the UV–vis–NIR spectrum. In the present work, we carried out extensive inves...

Descripción completa

Detalles Bibliográficos
Autores principales: Biroju, Ravi K., Marepally, Bhanu Chandra, Malik, Pariksha, Dhara, Soumen, Gengan, Saravanan, Maity, Dipak, Narayanan, Tharangattu N., Giri, Pravat K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9893265/
https://www.ncbi.nlm.nih.gov/pubmed/36743051
http://dx.doi.org/10.1021/acsomega.2c07706
_version_ 1784881487184658432
author Biroju, Ravi K.
Marepally, Bhanu Chandra
Malik, Pariksha
Dhara, Soumen
Gengan, Saravanan
Maity, Dipak
Narayanan, Tharangattu N.
Giri, Pravat K.
author_facet Biroju, Ravi K.
Marepally, Bhanu Chandra
Malik, Pariksha
Dhara, Soumen
Gengan, Saravanan
Maity, Dipak
Narayanan, Tharangattu N.
Giri, Pravat K.
author_sort Biroju, Ravi K.
collection PubMed
description [Image: see text] Two-dimensional–zero-dimensional plasmonic hybrids involving defective graphene and transition metals (DGR-TM) have drawn significant interest due to their near-field plasmonic effects in the wide range of the UV–vis–NIR spectrum. In the present work, we carried out extensive investigations on resonance Raman spectroscopy (RRS) and localized surface plasmon resonance (LSPR) from the various DGR-TM hybrids (Au, Ag, and Cu) using micro-Raman, spatial Raman mapping analysis, high-resolution transmission electron microscopy (HRTEM), and LSPR absorption measurements on defective CVD graphene layers. Further, electric field (E) mappings of samples were calculated using the finite domain time difference (FDTD) method to support the experimental findings. The spatial distribution of various in-plane and edge defects and defect-mediated interaction of plasmonic nanoparticles (NPs) with graphene were investigated on the basis of the RRS and LSPR and correlated with the quantitative analysis from HRTEM, excitation wavelength-dependent micro-Raman, and E-field enhancement features of defective graphene and defective graphene-Au hybrids before and after rapid thermal annealing (RTA). Excitation wavelength-dependent surface-enhanced Raman scattering (SERS) and LSPR-induced broadband absorption from DGR-Au plasmonic hybrids reveal the electron and phonon interaction on the graphene surface, which leads to the charge transfer from TM NPs to graphene. This is believed to be responsible for the reduction in the SERS signal, which was observed from the wavelength-dependent Raman spectroscopy/mappings. We implemented defective graphene and DGR-Au plasmonic hybrids as efficient SERS sensors to detect the Fluorescein and Rhodamine 6G molecules with a detection limit down to 10(–9) M. Defective graphene and Au plasmonic hybrids showed an impressive Raman enhancement in the order of 10(8), which is significant for its practical application.
format Online
Article
Text
id pubmed-9893265
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-98932652023-02-03 Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors Biroju, Ravi K. Marepally, Bhanu Chandra Malik, Pariksha Dhara, Soumen Gengan, Saravanan Maity, Dipak Narayanan, Tharangattu N. Giri, Pravat K. ACS Omega [Image: see text] Two-dimensional–zero-dimensional plasmonic hybrids involving defective graphene and transition metals (DGR-TM) have drawn significant interest due to their near-field plasmonic effects in the wide range of the UV–vis–NIR spectrum. In the present work, we carried out extensive investigations on resonance Raman spectroscopy (RRS) and localized surface plasmon resonance (LSPR) from the various DGR-TM hybrids (Au, Ag, and Cu) using micro-Raman, spatial Raman mapping analysis, high-resolution transmission electron microscopy (HRTEM), and LSPR absorption measurements on defective CVD graphene layers. Further, electric field (E) mappings of samples were calculated using the finite domain time difference (FDTD) method to support the experimental findings. The spatial distribution of various in-plane and edge defects and defect-mediated interaction of plasmonic nanoparticles (NPs) with graphene were investigated on the basis of the RRS and LSPR and correlated with the quantitative analysis from HRTEM, excitation wavelength-dependent micro-Raman, and E-field enhancement features of defective graphene and defective graphene-Au hybrids before and after rapid thermal annealing (RTA). Excitation wavelength-dependent surface-enhanced Raman scattering (SERS) and LSPR-induced broadband absorption from DGR-Au plasmonic hybrids reveal the electron and phonon interaction on the graphene surface, which leads to the charge transfer from TM NPs to graphene. This is believed to be responsible for the reduction in the SERS signal, which was observed from the wavelength-dependent Raman spectroscopy/mappings. We implemented defective graphene and DGR-Au plasmonic hybrids as efficient SERS sensors to detect the Fluorescein and Rhodamine 6G molecules with a detection limit down to 10(–9) M. Defective graphene and Au plasmonic hybrids showed an impressive Raman enhancement in the order of 10(8), which is significant for its practical application. American Chemical Society 2023-01-19 /pmc/articles/PMC9893265/ /pubmed/36743051 http://dx.doi.org/10.1021/acsomega.2c07706 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Biroju, Ravi K.
Marepally, Bhanu Chandra
Malik, Pariksha
Dhara, Soumen
Gengan, Saravanan
Maity, Dipak
Narayanan, Tharangattu N.
Giri, Pravat K.
Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors
title Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors
title_full Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors
title_fullStr Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors
title_full_unstemmed Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors
title_short Defective Graphene/Plasmonic Nanoparticle Hybrids for Surface-Enhanced Raman Scattering Sensors
title_sort defective graphene/plasmonic nanoparticle hybrids for surface-enhanced raman scattering sensors
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9893265/
https://www.ncbi.nlm.nih.gov/pubmed/36743051
http://dx.doi.org/10.1021/acsomega.2c07706
work_keys_str_mv AT birojuravik defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT marepallybhanuchandra defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT malikpariksha defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT dharasoumen defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT gengansaravanan defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT maitydipak defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT narayanantharangattun defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors
AT giripravatk defectivegrapheneplasmonicnanoparticlehybridsforsurfaceenhancedramanscatteringsensors