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Bottom-Up Synthesis of N = 13 Sulfur-Doped Graphene Nanoribbons

  • Author(s): Nguyen, GD;
  • Toma, FM;
  • Cao, T;
  • Pedramrazi, Z;
  • Chen, C;
  • Rizzo, DJ;
  • Joshi, T;
  • Bronner, C;
  • Chen, YC;
  • Favaro, M;
  • Louie, SG;
  • Fischer, FR;
  • Crommie, MF
  • et al.
Abstract

Substitutional doping of graphene nanoribbons (GNRs) with heteroatoms is a principal strategy to fine-tune the electronic structure of GNRs for future device applications. Here, we report the fabrication and nanoscale characterization of atomically precise N = 13 armchair GNRs featuring regioregular edge-doping with sulfur atoms (S-13-AGNRs) on a Au(111) surface. Scanning tunneling spectroscopy and first-principle calculations reveal modification of the electronic structure of S-13-AGNRs when compared to undoped N = 13 AGNRs.

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