"Narrow" Graphene Nanoribbons Made Easier by Partial Hydrogenation

Details "Narrow" Graphene Nanoribbons Made Easier by Partial Hydrogenation "Narrow" Graphene Nanoribbons Made Easier by Partial Hydrogenation

2009-05-12

arxiv.org/abs/0905.1895v1

Nano Lett. 2009

Physics

Condensed Matter

Materials Science

Scientific paper

10.1021/nl902198u

It is a challenge to synthesize graphene nanoribbons (GNRs) with narrow widths and smooth edges in large scale. Our first principles study on the hydrogenation of GNRs shows that the hydrogenation starts from the edges of GNRs and proceeds gradually toward the middle of the GNRs so as to maximize the number of carbon-carbon $\pi$-$\pi$ bonds. Furthermore, the partially hydrogenated wide GNRs have similar electronic and magnetic properties as those of narrow GNRs. Therefore, it is not necessary to directly produce narrow GNRs for realistic applications because partial hydrogenation could make wide GNRs "narrower".

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