Graphene-enhanced Raman scattering on single layer and bilayers of pristine and hydrogenated graphene

Valeš, Václav; Drogowska-Horna, Karolina A.; Guerra, Valentino Libero Pio; Kalbáč, Martin

doi:https://dx.doi.org/10.1038/s41598-020-60857-y

Number of the records: 1

Graphene-enhanced Raman scattering on single layer and bilayers of pristine and hydrogenated graphene

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SYSNO ASEP	0534514
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Graphene-enhanced Raman scattering on single layer and bilayers of pristine and hydrogenated graphene
Author(s)	Valeš, Václav (UFCH-W)_{RID, ORCID} Drogowska-Horna, Karolina A. (UFCH-W) Guerra, Valentino Libero Pio (UFCH-W)_{ORCID, RID, SAI} Kalbáč, Martin (UFCH-W)_{RID, ORCID}
Article number	4516
Source Title	Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322 Roč. 10, č. 1 (2020)
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	grown graphene ; induced strain ; spectroscopy ; surface ; substrate ; molecules ; sers
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
R&D Projects	GA18-20357S GA ČR - Czech Science Foundation (CSF)
	LTC18039 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LTAUSA19001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EF16_013/0001821 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	UFCH-W - RVO:61388955
UT WOS	000560136900002
EID SCOPUS	85081557030
DOI	10.1038/s41598-020-60857-y
Annotation	Graphene-enhanced Raman scattering (GERS) on isotopically labelled bilayer and a single layer of pristine and partially hydrogenated graphene has been studied. The hydrogenated graphene sample showed a change in relative intensities of Raman bands of Rhodamine 6G (R6G) with different vibrational energies deposited on a single layer and bilayer graphene. The change corresponds qualitatively to different doping of graphene in both areas. Pristine graphene sample exhibited no difference in doping nor relative intensities of R6G Raman peaks in the single layer and bilayer areas. Therefore, it was concluded that strain and strain inhomogeneities do not affect the GERS. Because of analyzing relative intensities of selected peaks of the R6G probe molecules, it is possible to obtain these results without determining the enhancement factor and without assuming homogeneous coverage of the molecules. Furthermore, we tested the approach on copper phtalocyanine molecules.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2021
Electronic address	http://hdl.handle.net/11104/0312699

Number of the records: 1