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Graphene single crystals: size and morphology engineering.

Dechao Geng1, Huaping Wang, Gui Yu

  • 1Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.

Advanced Materials (Deerfield Beach, Fla.)
|March 27, 2015
PubMed
Summary
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Chemical vapor deposition (CVD) enables scalable graphene production. This review focuses on controlling graphene single crystal size and morphology for improved electronic applications, addressing challenges in large-scale manufacturing.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Chemistry

Background:

  • Chemical Vapor Deposition (CVD) is a key method for large-area graphene synthesis.
  • CVD-grown graphene is polycrystalline, with grain boundaries negatively impacting electronic properties.
  • Controlled growth of graphene single crystals is crucial for defect-free electronics.

Purpose of the Study:

  • To review recent advances in synthesizing graphene single crystals via CVD.
  • To discuss the engineering of size and morphology in graphene single crystals.
  • To present progress in growth mechanisms and device applications of graphene single crystals.

Main Methods:

  • Chemical Vapor Deposition (CVD) on various substrates (metals and dielectrics).
  • Focus on precise control over graphene crystal size and morphology.
Keywords:
chemical vapor depositionengineeringgraphene single crystalsmorphologysize

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  • Analysis of growth mechanisms and device performance.

    • Main Results:

    • Significant progress in controlling graphene single crystal size and morphology using CVD.
    • Demonstrated influence of size and morphology on graphene properties.
    • Advancements in understanding CVD growth mechanisms for single crystals.

    Conclusions:

    • Precise tuning of graphene single crystal size and morphology is vital for advanced applications.
    • CVD offers a scalable route to high-quality graphene single crystals.
    • Further research is needed to overcome challenges in large-scale production and application.