English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/161418
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Chemistry below graphene: Decoupling epitaxial graphene from metals by potential-controlled electrochemical oxidation

AuthorsPalacio, Irene ; Otero, Gonzalo ; Alonso, Concepción; Martínez, José I. ; López-Elvira, Elena ; Muñoz-Ochando, Isabel; Salavagione, Horacio J. ; López, María Francisca ; García-Hernández, M. ; Méndez, J.; Ellis, Gary James ; Martín-Gago, José A.
Issue DateApr-2018
CitationCarbon 129: 837-846 (2018)
AbstractWhile high-quality defect-free epitaxial graphene can be efficiently grown on metal substrates, strong interaction with the supporting metal quenches its outstanding properties. Thus, protocols to transfer graphene to insulating substrates are obligatory, and these often severely impair graphene properties by the introduction of structural or chemical defects. Here we describe a simple and easily scalable general methodology to structurally and electronically decouple epitaxial graphene from Pt(111) and Ir(111) metal surfaces. A multi-technique characterization combined with ab-initio calculations was employed to fully explain the different steps involved in the process. It was shown that, after a controlled electrochemical oxidation process, a single-atom thick metal-hydroxide layer intercalates below graphene, decoupling it from the metal substrate. This decoupling process occurs without disrupting the morphology and electronic properties of graphene. The results suggest that suitably optimized electrochemical treatments may provide effective alternatives to current transfer protocols for graphene and other 2D materials on diverse metal surfaces.
Publisher version (URL)http://dx.doi.org/10.1016/j.carbon.2017.12.104
Identifiersdoi: 10.1016/j.carbon.2017.12.104
issn: 0008-6223
Appears in Collections:(ICMM) Artículos
(ICTP) Artículos
Files in This Item:
File Description SizeFormat 
chemistry_below graphene_Palacio.pdf2,01 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.