Bottom-up Synthesis and Characterization of Porous 12-Atom-Wide Armchair Graphene Nanoribbons

Fan Q, Ruan Z, Werner S, Naumann T, Bolat R, Martinez-Castro J, Koehler T, Vollgraff T, Hieringer W, Mandalia R, Neiß C, Görling A, Tautz FS, Sundermeyer J, Gottfried JM (2024)

Publication Type: Journal article

Publication year: 2024

Journal

DOI: 10.1021/acs.nanolett.4c01106

Abstract

Although several porous carbon/graphene nanoribbons (GNRs) have been prepared, a direct comparison of the electronic properties between a nonporous GNR and its periodically perforated counterpart is still missing. Here, we report the synthesis of porous 12-atom-wide armchair-edged GNRs from a bromoarene precursor on a Au(111) surface via hierarchical Ullmann and dehydrogenative coupling. The selective formation of porous 12-GNRs was achieved through thermodynamic and kinetic reaction control combined with tailored precursor design. The structure and electronic properties of the porous 12-GNR were elucidated by scanning tunneling microscopy/spectroscopy and density functional theory calculations, revealing that the pores induce a 2.17 eV band gap increase compared to the nonporous 12-AGNR on the same surface.

Authors with CRIS profile

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) Germany (DE) Philipps-Universität Marburg Germany (DE)

How to cite

APA:

Fan, Q., Ruan, Z., Werner, S., Naumann, T., Bolat, R., Martinez-Castro, J.,... Gottfried, J.M. (2024). Bottom-up Synthesis and Characterization of Porous 12-Atom-Wide Armchair Graphene Nanoribbons. Nano Letters. https://doi.org/10.1021/acs.nanolett.4c01106

MLA:

Fan, Qitang, et al. "Bottom-up Synthesis and Characterization of Porous 12-Atom-Wide Armchair Graphene Nanoribbons." Nano Letters (2024).

BibTeX: Download