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Related Experiment Video

Updated: Jun 2, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

High surface area tapes produced with functionalized graphene.

Sibel Korkut1, Joseph D Roy-Mayhew, Daniel M Dabbs

  • 1Vorbeck Materials Corporation, 8306 Patuxent Range Road, No. 105, Jessup, Maryland 20794, United States.

ACS Nano
|May 7, 2011
PubMed
Summary
This summary is machine-generated.

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We developed a scalable tape casting method to create continuous graphene networks from aqueous suspensions. These high-surface-area graphene tapes offer an exceptional balance of electrical conductivity, mechanical strength, and low density for advanced materials.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Graphene networks are crucial for advanced materials due to their unique properties.
  • Producing continuous, high-performance graphene materials often involves complex or low-yield methods.
  • Controlling the properties of graphene networks relies heavily on the inter-sheet connections.

Purpose of the Study:

  • To introduce a scalable tape casting method for continuous graphene networks.
  • To investigate the relationship between graphene sheet overlap and material properties.
  • To achieve high specific surface area in graphene tapes while maintaining desirable conductivity and strength.

Main Methods:

  • Utilizing surfactant-stabilized aqueous suspensions of functionalized graphene sheets.

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  • Employing tape casting for the fabrication of continuous graphene tapes.
  • Characterizing electrical conductivity, tensile strength, apparent density, and specific surface area.

    • Main Results:

    • A scalable method for producing continuous graphene networks via tape casting was established.
    • The electrical and mechanical properties were found to be dependent on the degree of graphene sheet overlap.
    • The fabricated tapes maintained a high specific surface area (>400 m²/g).
    • The tapes exhibited densities between 0.15-0.51 g/cm³, conductivities up to 24 kS/m, and tensile strengths over 10 MPa.

    Conclusions:

    • The developed tape casting method offers a scalable route to high-performance graphene networks.
    • These graphene tapes present an optimal combination of low density, high electrical conductivity, and mechanical strength compared to existing carbon-based materials.
    • The method enables the production of advanced graphene materials for diverse applications.