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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
Published on: September 23, 2018
Macroscopic graphene membranes and their extraordinary stiffness
Tim J Booth1, Peter Blake, Rahul R Nair
1Department of Physics and Astronomy, Schuster Laboratory, Manchester University, Brunswick Street, Manchester M13 9PL, United Kingdom. tim.j.booth@gmail.com
Nano Letters
|July 3, 2008
Summary
Researchers developed a new method to create large graphene membranes. These membranes are surprisingly stiff, supporting loads millions of times their weight, unlike previously thought.
Area of Science:
- Materials Science
- Nanotechnology
- Condensed Matter Physics
Background:
- Suspended graphene properties are of great interest.
- Small sample sizes and fabrication challenges limit experimental studies.
- Current understanding perceives graphene as a supple material.
Purpose of the Study:
- To develop a reliable method for producing macroscopic graphene membranes.
- To characterize the mechanical properties of suspended graphene.
- To investigate the structural behavior of supported graphene beams.
Main Methods:
- Development of a novel fabrication technique for macroscopic graphene membranes (up to 100 micrometers).
- Characterization using transmission electron microscopy.
- Mechanical testing of supported graphene beams.
Main Results:
- Successful fabrication of large-scale graphene membranes.
- Demonstrated that long, one-sided supported graphene beams do not scroll or fold.
- Graphene beams exhibit remarkable stiffness, supporting loads millions of times their own weight.
- Results align with theoretical predictions.
Conclusions:
- The new method enables the study of suspended graphene at unprecedented scales.
- The findings challenge the perception of graphene's flexibility, revealing its significant stiffness.
- This work facilitates advanced research in graphene properties and applications in micromechanical systems and electron microscopy.
