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Related Experiment Video

Updated: May 6, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

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Ultraflat graphene.

Chun Hung Lui1, Li Liu, Kin Fai Mak

  • 1Department of Physics, Columbia University, New York, New York 10027, USA.

Nature
|November 20, 2009
PubMed
Summary
This summary is machine-generated.

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Researchers created ultraflat graphene sheets by depositing them on mica. This breakthrough enables detailed study of graphene

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Graphene, a 2D carbon allotrope, exhibits unique electronic properties.
  • Microscopic corrugations (ripples) are intrinsic to graphene, influencing its properties.
  • Studying ripple effects is crucial but hindered by the lack of flat graphene.

Purpose of the Study:

  • To fabricate atomically flat graphene monolayers.
  • To enable rigorous experimental investigation of ripple-induced phenomena in graphene.

Main Methods:

  • Graphene monolayer deposition on atomically flat, cleaved mica surfaces.
  • High-resolution atomic force microscopy (AFM) for surface analysis.

Main Results:

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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

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Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
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Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

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Last Updated: May 6, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
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Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

14.7K
Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

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Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
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Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

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  • Fabrication of graphene monolayers with atomic-level flatness achieved.
  • Apparent height variation in graphene layers measured below 25 picometres.
  • Suppression of intrinsic graphene ripples demonstrated.

    • Conclusions:

    • Ultraflat graphene samples are now available for research.
    • This facilitates precise study of ripple effects on graphene's physical and chemical properties.
    • Opens new avenues for exploring novel ripple physics in two-dimensional materials.