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Unraveling the electronic structure of narrow atomically precise chiral graphene nanoribbons

AuthorsMerino-Díez, Nestor; Li, Jingcheng; García-Lekue, Aran; Vasseur, Guillaume; Vilas-Varela, Manuel; Carbonell, Eduard; Corso, Martina ; Ortega, J. Enrique ; Peña, Diego; Pascual, José I.; Oteyza, D. G. de
Issue Date2018
PublisherAmerican Chemical Society
CitationJournal of Physical Chemistry Letters 9(1): 25-30 (2018)
AbstractRecent 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.
Publisher version (URL)https://doi.org/10.1021/acs.jpclett.7b02767
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