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Publication

Synthesis of wide atomically precise graphene nanoribbons from para-oligophenylene based molecular precursor

Klaus Kern, Sebastian Stepanow
2014
Journal Articles

Abstract

The exploration of graphene nanoribbons (GNRs) and understanding of the structure-property relationship requires the synthesis of GNRs with precisely controllable architecture. In this communication we report on bottom-up fabrication of wide armchair GNR from a para-oligophenylene based molecular precursor. The obtained GNR represents the widest rationally synthesized GNR up to now. (C) 2014 Elsevier Ltd. All rights reserved.

Official source

https://infoscience.epfl.ch/entities/publication/0293f7f2-2d2e-4705-a186-de492e6161c9

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Klaus Kern, Sebastian Stepanow
2014
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0293f7f2-2d2e-4705-a186-de492e6161c9

About this result

Related concepts (4)

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.

Graphene

Graphene (ˈgræfiːn) is an allotrope of carbon consisting of a single layer of atoms arranged in a hexagonal lattice nanostructure. The name is derived from "graphite" and the suffix -ene, reflecting the fact that the graphite allotrope of carbon contains numerous double bonds. Each atom in a graphene sheet is connected to its three nearest neighbors by σ-bonds and a delocalised π-bond, which contributes to a valence band that extends over the whole sheet.

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.

Related publications (27)

Related concepts (4)

Graphene nanoribbon

Graphene

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.

Synthesis of wide atomically precise graphene nanoribbons from para-oligophenylene based molecular precursor

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