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Wafer-Scale Single-Crystalline AB-Stacked Bilayer Graphene
Van Luan Nguyen1,2,3, David J Perello1, Seunghun Lee4
1Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Republic of Korea.
Advanced Materials (Deerfield Beach, Fla.)
|July 15, 2016
Summary
Researchers created single-crystal bilayer graphene using aligned monolayer transfer. This wafer-scale method yields a well-defined interface, matching exfoliated graphene
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Bilayer graphene exhibits unique electronic properties.
- Previous methods for creating AB-stacked bilayer graphene had limitations in scale and interface control.
Purpose of the Study:
- To develop a wafer-scale method for producing single-crystalline AB-stacked bilayer graphene.
- To achieve a well-defined interface in artificial bilayer graphene.
Main Methods:
- Aligned transfer of two single-crystalline graphene monolayers.
- Wafer-scale fabrication technique.
Main Results:
- Successfully formed single-crystalline artificial AB-stacked bilayer graphene.
- The obtained bilayer possesses a well-defined interface.
- Electronic properties are equivalent to exfoliated or direct-grown AB-stacked bilayers.
Conclusions:
- Aligned transfer is a viable method for large-scale, high-quality bilayer graphene synthesis.
- This technique enables the production of artificial graphene with properties comparable to naturally occurring forms.
