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Related Experiment Video

Updated: Jun 26, 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

High-throughput solution processing of large-scale graphene.

Vincent C Tung, Matthew J Allen, Yang Yang

    Nature Nanotechnology
    |January 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers developed a scalable solution-based method for producing large-area single-layer chemically converted graphene. This breakthrough enables high-performance nanoelectronic devices with significantly improved current output.

    Area of Science:

    • Materials Science
    • Nanotechnology
    • Electronics

    Background:

    • Graphene's exceptional electronic properties offer potential for advanced nanoelectronic devices, surpassing limitations of current MOSFET technology.
    • Challenges in scalable production of high-quality single-layer graphene have hindered its widespread application.
    • Ballistic transport in graphene allows for sub-micrometre scale operation without traditional scaling issues.

    Discussion:

    • A novel solution-based process facilitates large-scale production of single-layer chemically converted graphene (CCG) on silicon/SiO(2) wafers.
    • Dispersion of graphite oxide in hydrazine effectively removes oxygen functionalities and restores graphene's planar structure.
    • The developed CCG sheets, up to 20 x 40 micrometers, represent the largest reported area, simplifying processing.

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    Published on: September 23, 2018

    Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
    11:24

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

    Published on: July 11, 2025

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    Last Updated: Jun 26, 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

    Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
    14:52

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

    Published on: September 23, 2018

    Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
    11:24

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

    Published on: July 11, 2025

    Key Insights:

    • Fabrication of field-effect devices using photolithography on these large CCG sheets resulted in current outputs three orders of magnitude higher than previously achieved with chemically produced graphene.
    • The significant size of the graphene sheets allows for comprehensive characterization using various microscopy techniques on a single specimen.
    • This scalable production method overcomes previous limitations, paving the way for practical graphene-based nanoelectronics.

    Outlook:

    • The large-area, high-performance chemically converted graphene produced by this method is expected to accelerate the development of next-generation nanoelectronic devices.
    • Further research can explore optimizing the hydrazine reduction process for even greater control over graphene's electronic properties.
    • The accessibility of large graphene sheets for characterization will facilitate deeper understanding and further innovation in graphene science and technology.