Publication

Graphene nanoribbons produced by the oxidative unzipping of single-wall carbon nanotubes

Giorgio Margaritondo, Primoz Rebernik Ribic
2010
Journal Articles

Résumé

Graphene nanoribbons were synthesized by oxidative unzipping of single-wall carbon nanotubes (SWCNTs). The nanoribbons produced from SWCNTs were characterized using FT-IR, Raman and X-ray photoelectron spectroscopy. For the morphological study of the product obtained from the SWCNT unzipping reaction, transmission electron microscopy and atomic force microscopy were used, confirming the typical graphene nanoribbon structure. (C) 2010 Elsevier Ltd. All rights reserved.

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https://infoscience.epfl.ch/entities/publication/dce0e211-6d85-439c-9023-4709c3f0e231

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Giorgio Margaritondo, Primoz Rebernik Ribic
2010
Journal Articles

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/dce0e211-6d85-439c-9023-4709c3f0e231

À propos de ce résultat

Concepts associés (16)

Graphène

Le graphène est un matériau bidimensionnel cristallin, forme allotropique du carbone dont l'empilement constitue le graphite. Cette définition théorique est donnée par le physicien en 1947. Par la suite, le travail de différents groupes de recherche permettra de se rendre compte que la structure du graphène tout comme ses propriétés ne sont pas uniques et dépendent de sa synthèse/extraction (détaillée dans la section Production).

Graphene nanoribbon

Graphene nanoribbons (GNRs, also called nano-graphene ribbons or nano-graphite ribbons) are strips of graphene with width less than 100 nm. Graphene ribbons were introduced as a theoretical model by Mitsutaka Fujita and coauthors to examine the edge and nanoscale size effect in graphene. Large quantities of width-controlled GNRs can be produced via graphite nanotomy, where applying a sharp diamond knife on graphite produces graphite nanoblocks, which can then be exfoliated to produce GNRs as shown by Vikas Berry.

Potential applications of graphene

Potential graphene applications include lightweight, thin, and flexible electric/photonics circuits, solar cells, and various medical, chemical and industrial processes enhanced or enabled by the use of new graphene materials. In 2008, graphene produced by exfoliation was one of the most expensive materials on Earth, with a sample the area of a cross section of a human hair costing more than

1,000 as of April 2008 (about

100,000,000/cm2). Since then, exfoliation procedures have been scaled up, and now companies sell graphene in large quantities.

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Concepts associés (16)

Graphène

Graphene nanoribbon

Potential applications of graphene

1,000 as of April 2008 (about

100,000,000/cm2). Since then, exfoliation procedures have been scaled up, and now companies sell graphene in large quantities.

Afficher plus