About: The effect of a thin gold layer on graphene: a Raman spectroscopy study

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An understanding of interactions between graphene and its surroundings is crucial for application of graphene in electronic devices. Raman spectroscopy is a convenient and efficient tool to provide information about the doping, stress and defects in graphene; however application of this method is limited to the Si/SiO2 substrate which provides interference enhancement. Here we present a comprehensive Raman study of the single-layer graphene - sapphire - gold system. Due to plasmons generated in the gold-layer the Raman signal of graphene is significantly enhanced. We study the influence of the gold layer thickness and gold particle size on the enhancement. The analysis of the Raman maps showed that graphene on sapphire is only slightly doped and the spatial distribution of doping is quite homogenous. Also no significant strain was generated in graphene sandwiched by sapphire and gold. An understanding of interactions between graphene and its surroundings is crucial for application of graphene in electronic devices. Raman spectroscopy is a convenient and efficient tool to provide information about the doping, stress and defects in graphene; however application of this method is limited to the Si/SiO2 substrate which provides interference enhancement. Here we present a comprehensive Raman study of the single-layer graphene - sapphire - gold system. Due to plasmons generated in the gold-layer the Raman signal of graphene is significantly enhanced. We study the influence of the gold layer thickness and gold particle size on the enhancement. The analysis of the Raman maps showed that graphene on sapphire is only slightly doped and the spatial distribution of doping is quite homogenous. Also no significant strain was generated in graphene sandwiched by sapphire and gold. (en)
Title	The effect of a thin gold layer on graphene: a Raman spectroscopy study The effect of a thin gold layer on graphene: a Raman spectroscopy study (en)
skos:prefLabel	The effect of a thin gold layer on graphene: a Raman spectroscopy study The effect of a thin gold layer on graphene: a Raman spectroscopy study (en)
skos:notation	RIV/61388955:_____/14:00438508!RIV15-GA0-61388955
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP204/10/1677), P(LL1301)
http://linked.open...iv/cisloPeriodika	105
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kalbáč, Martin Valeš, Václav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	13088
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/14:00438508
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	chemical vapor deposition; graphene; Raman spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	Raman spectroscopy graphene chemical vapor deposition
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[ADBE02D73C77]
http://linked.open...i/riv/nazevZdroje	RSC Advances
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	From Graphene Hybrid Nanostructures to Green Electronics Magnetic properties of carbon nanostructures in neutral and doped state
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	4
http://linked.open...iv/tvurceVysledku	Kalbáč, Martin Valeš, Václav Vejpravová, Jana
http://linked.open...ain/vavai/riv/wos	000345655600060
issn	2046-2069
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1039/c4ra11270a

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