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Unraveling the Electronic Structure of Narrow Atomically Precise Chiral Graphene Nanoribbons

2017; American Chemical Society; Volume: 9; Issue: 1 Linguagem: Inglês

10.1021/acs.jpclett.7b02767

1948-7185

Néstor Merino‐Díez, Jingcheng Li, Aran García-Lekue, Guillaume Vasseur, Manuel Vilas‐Varela, Eduard Carbonell-Sanromà, Martina Corso, J. Enrique Ortega, Diego Peña, José Ignacio Pascual, Dimas G. de Oteyza,

Topological Materials and Phenomena

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.