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Title

Inductively coupled remote plasma-enhanced chemical vapor deposition (rPE-CVD) as a versatile route for the deposition of graphene micro- and nanostructures

AuthorsCuxart, M. G.; Sics, Igors; Goñi, Alejandro R. ; Pach, Elzbieta; Sauthier, Guillaume ; Paradinas, Markos; Foerster, Michael; Aballe, Lucía; Moreno Fernandez, H.; Carlino, Vince; Pellegrin, Eric
Issue Date2017
PublisherElsevier
CitationCarbon 117: 331-342 (2017)
AbstractMultiple layers of graphene thin films with micro-crystalline orientation and vertical graphene nano-sheets were grown on different substrates (i.e., polycrystalline nickel foil, Ni(111), highly oriented pyrolytic graphite) using a single-step process based on low-pressure remote Plasma-Enhanced Chemical Vapor Deposition (rPE-CVD). In contrast to previous studies, a novel basic approach to this technique including a new remote inductively coupled RF plasma source has been used to (i) minimize the orientational effect of the plasma electrical fields during the catalyst-free growth of graphene nano-sheets, (ii) warrant for a low graphene defect density via low plasma kinetics, (iii) decouple the dissociation process of the gas from the growth process of graphene on the substrate, (iv) tune the feedstock gas chemistry in view of improving the graphene growth, and (v) reduce the growth temperature as compared to conventional chemical vapor deposition (CVD). In order to study the various aspects of the rPE-CVD graphene growth modes and to assess the characteristics of the resulting graphene layers, Raman spectroscopy, XPS, SEM, and STM were used. The results give evidence for the successful performance of this new rPE-CVD plasma deposition source, that can be combined with in situ UHV-based processess for the production of, e. g., hybrid metal ferromagnet/graphene systems.
URIhttp://hdl.handle.net/10261/160151
Identifiersdoi: 10.1016/j.carbon.2017.02.067
issn: 0008-6223
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