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Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
Published on: October 12, 2019
Unraveling the Electronic Structure of Narrow Atomically Precise Chiral Graphene Nanoribbons
Néstor Merino-Díez1,2, Jingcheng Li2,3, Aran Garcia-Lekue1,4
1Donostia International Physics Center (DIPC) , 20018 San Sebastián-Donostia, Spain.
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.
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