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Unraveling the Electronic Structure of Narrow Atomically Precise Chiral Graphene Nanoribbons.

ABSTRACT: Recent advances in graphene-nanoribbon-based research have demonstrated the controlled synthesis of chiral graphene nanoribbons (chGNRs) with atomic precision using strategies of on-surface chemistry. However, their electronic characterization, including typical figures of merit like band gap or frontier band's effective mass, has not yet been reported. We provide a detailed characterization of (3,1)-chGNRs on Au(111). The structure and epitaxy, as well as the electronic band structure of the ribbons, are analyzed by means of scanning tunneling microscopy and spectroscopy, angle-resolved photoemission, and density functional theory.

SUBMITTER: Merino-Diez N

PROVIDER: S-EPMC5759029 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Unraveling the Electronic Structure of Narrow Atomically Precise Chiral Graphene Nanoribbons.

Merino-Díez Néstor N Li Jingcheng J Garcia-Lekue Aran A Vasseur Guillaume G Vilas-Varela Manuel M Carbonell-Sanromà Eduard E Corso Martina M Ortega J Enrique JE Peña Diego D Pascual Jose I JI de Oteyza Dimas G DG

The journal of physical chemistry letters 20171214 1

Recent advances in graphene-nanoribbon-based research have demonstrated the controlled synthesis of chiral graphene nanoribbons (chGNRs) with atomic precision using strategies of on-surface chemistry. However, their electronic characterization, including typical figures of merit like band gap or frontier band's effective mass, has not yet been reported. We provide a detailed characterization of (3,1)-chGNRs on Au(111). The structure and epitaxy, as well as the electronic band structure of the ri ...[more]

PMID: 29220194

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