Graphene articles within Communications Materials

Featured

• Article
  22 December 2022 | Open Access

  Scalable fabrication of graphene nanoribbon quantum dot devices with stable orbital-level spacing

  Graphene nanoribbons can be used as quantum dot devices, but scalable fabrication methods are needed. Here, a nanobar technique is used to synthesize graphene nanoribbon-based quantum dot devices with a 56 % yield and stable orbital level splitting up to 20 K.

  • Toshiaki Kato
  • , Takahito Kitada
  •  & Tomohiro Otsuka

• Article
  17 October 2022 | Open Access

  Non-wetting of condensation-induced droplets on smooth monolayer suspended graphene with contact angle approaching 180 degrees

  Superhydrophobic behavior of liquid droplets on a surface typically results from chemical and surface topography considerations. Here, contact angles approaching 180° are observed for condensation-induced droplets on suspended monolayer graphene.

  • Haidong Wang
  • , Daniel Orejon
  •  & Khellil Sefiane

• Article
  25 August 2022 | Open Access

  Disentangling the electronic structure of an adsorbed graphene nanoring by scanning tunneling microscopy

  Scanning tunneling microscopy is a powerful tool for determining the electronic structure of surface adsorbates. Here, carbon monoxide functionalized tips enable more accurate probing of the molecular states of graphene nanorings adsorbed on a gold surface.

  • Jose Martinez-Castro
  • , Rustem Bolat
  •  & F. Stefan Tautz

• Article
  04 May 2022 | Open Access

  Experimentally measuring weak fracture toughness anisotropy in graphene

  Graphene is known to display a number of attractive mechanical properties. Here, anisotropy in the fracture toughness of graphene is investigated by in-situ mechanical testing, revealing weak anisotropy between armchair and zigzag directions.

  • Shizhe Feng
  • , Ke Cao
  •  & Zhiping Xu

• Article
  14 December 2021 | Open Access

  Observation of a flat band and bandgap in millimeter-scale twisted bilayer graphene

  Magic-angle twisted bilayer graphene is interesting for its correlated superconducting and insulating states, but samples are typically micrometer-scale. Here, 3 × 5 mm² twisted bilayer graphene samples are fabricated, exhibiting a flat band and large bandgap revealed by angle-resolved photoemission spectroscopy.

  • Keiju Sato
  • , Naoki Hayashi
  •  & Wataru Norimatsu

• Article
  23 June 2020 | Open Access

  Small bandgap in atomically precise 17-atom-wide armchair-edged graphene nanoribbons

  Armchair-edged graphene nanoribbons, characterized by width-dependent bandgaps, may become prominent in future semiconductor devices. Here, a small bandgap of 0.19 eV is achieved in 17-atom-wide nanoribbons, promising better transport characteristics in field-effect transistors.

  • Junichi Yamaguchi
  • , Hironobu Hayashi
  •  & Shintaro Sato

• Article
  04 February 2020 | Open Access

  Active spatial control of terahertz plasmons in graphene

  Controlling spatial conductivity in graphene is important for plasmonic devices, yet conductivity patterning typically changes the electromagnetic environment. Here, teraherz plasmons in graphene are confined to specific regions via a patterned zinc oxide gate, reducing electromagnetic coupling.

  • Ngoc Han Tu
  • , Katsumasa Yoshioka
  •  & Norio Kumada