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Updated: May 14, 2026
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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
Published on: September 23, 2018
Controllable atomic scale patterning of freestanding monolayer graphene at elevated temperature
Qiang Xu1, Meng-Yue Wu, Grégory F Schneider
1Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands.
ACS Nano
|January 25, 2013
Summary
Researchers precisely sculpt free-standing monolayer graphene using a scanning transmission electron microscope (STEM) electron beam. This method allows for defect-free atomic-level patterning and imaging of the sculpted graphene structures.
Area of Science:
- Materials Science
- Nanotechnology
- Electron Microscopy
Background:
- Graphene's unique properties make it a promising material for advanced applications.
- Precise fabrication of graphene structures is crucial for unlocking its full potential.
Purpose of the Study:
- To demonstrate a method for sculpting free-standing monolayer graphene with atomic precision.
- To enable simultaneous sculpting and non-destructive imaging of graphene structures.
Main Methods:
- Utilizing a scanning transmission electron microscope (STEM) with a 0.1 nm, 300 kV electron beam.
- Employing distinct scanning dwell times for sculpting (longer) and imaging (shorter) to achieve precise control.
- Automating the sculpting process via scripting for repeatable fabrication.
Main Results:
- Achieved close-to-atomic precision sculpting of free-standing monolayer graphene at 600 °C.
- Demonstrated non-destructive imaging of sculpted graphene using the same electron beam.
- Successfully created defect-free, patterned graphene structures with controlled position, size, and orientation.
- Fabricated complex graphene assemblies, such as ribbons, through computer-controlled processes.
Conclusions:
- The developed STEM-based method offers unprecedented control over graphene fabrication at the atomic scale.
- This technique facilitates the creation of complex, custom-designed graphene nanostructures for diverse applications.
- The ability to seamlessly switch between sculpting and imaging enhances precision and allows for real-time adjustments.
