Surface enhancement Raman spectroscopy of CVD graphene and graphene oxide

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dc.contributor.authorAyhan, Muhammed Emre
dc.contributor.authorEmeller, Nagihan
dc.date.accessioned2024-02-23T14:20:37Z
dc.date.available2024-02-23T14:20:37Z
dc.date.issued2024
dc.departmentNEÜen_US
dc.description.abstractSERS has been of interest as an influential analytical characterization method for scientific studies to detect chemical and biological molecules. The selection of suitable SERS substrates is a major challenge for specific detection of molecules. Here, two different types of graphene-based SERS substrates were prepared and their SERS activities were compared. Our chemical vapor-deposited graphene (CVDG) SERS substrates showed an excellent limit of detection of 10-13 M. 10-13 M is the lowest concentration achieved so far in the as grown graphene-based SERS substrates without the use of noble metal or other materials for R6G molecules. When a flexible and transparent SERS substrate with a large surface area is desired, substrates made of CVDG SERS substrates are more suitable, while modified graphene oxide (MGO) may be preferred in powder, colloid and thin film SERS applications. MGO showed better signal enhancement compared to CVDG and SiO2 reference substrates in high concentration R6G solution. The differences between the SERS activities of the substrates were discussed in detail in terms of the differences in the chemical, electrical, optical, and surface properties of CVDG and MGO. Understanding the enhancement activities of non-resonant graphene-based SERS materials is critical for the next generation of Raman spectrometer instruments.en_US
dc.description.sponsorshipScientific Research Projects Coordination Unit at Necmettin Erbakan University [201219006]en_US
dc.description.sponsorshipThis research has been supported by the Scientific Research Projects Coordination Unit at Necmettin Erbakan University with Grant No: 201219006en_US
dc.identifier.doi10.1080/1536383X.2023.2271586
dc.identifier.endpage231en_US
dc.identifier.issn1536-383X
dc.identifier.issn1536-4046
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85174399337en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage223en_US
dc.identifier.urihttps://doi.org/10.1080/1536383X.2023.2271586
dc.identifier.urihttps://hdl.handle.net/20.500.12452/13239
dc.identifier.volume32en_US
dc.identifier.wosWOS:001087797200001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofFullerenes Nanotubes And Carbon Nanostructuresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCvden_US
dc.subjectGrapheneen_US
dc.subjectGraphene Oxideen_US
dc.subjectRhodamine 6gen_US
dc.subjectSersen_US
dc.titleSurface enhancement Raman spectroscopy of CVD graphene and graphene oxideen_US
dc.typeArticleen_US

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