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Updated: Jun 4, 2025
Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
Published on: September 23, 2018
Direct synthesis of multilayer graphene on a microscale ridge-patterned copper substrate
NaHyeon Hong1, Minyoung Lee1, Sungsu Kang1
1School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea; Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, Seoul 08826, Republic of Korea.
Researchers developed a new method to synthesize ridged multilayer graphene using patterned copper. This technique allows for controlled graphene conformations, advancing applications in electronics and microscopy.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Science
Background:
- Graphene possesses exceptional properties like high thermal conductivity and mechanical strength, making it suitable for transistors and thermal interface materials.
- Synthesizing graphene with specific conformations is crucial for advanced applications but remains a significant challenge.
- Controlled graphene structures are key to unlocking its full potential in various technological fields.
Purpose of the Study:
- To present a novel method for synthesizing multilayer graphene with predefined ridged conformations.
- To demonstrate the controlled growth of graphene structures guided by a patterned substrate.
- To explore the potential of this method for creating tunable graphene conformations for diverse applications.
Main Methods:
- Utilized a microscale ridge-patterned copper (Cu) layer epitaxially deposited on a sapphire substrate.
- Employed photolithography to pattern channels in the Cu layer, directing graphene growth.
- Grew multilayer graphene on the patterned Cu substrate, allowing it to conform to the ridged structure.
- Transferred the synthesized ridged graphene to transmission electron microscope (TEM) grids for characterization.
Main Results:
- Successfully synthesized uniform multilayer graphene with ridged conformations.
- Demonstrated that the patterned copper substrate effectively guides graphene growth into the desired ridged structures.
- Observed the conformality of the grown graphene to the underlying ridged copper topography.
Conclusions:
- The developed method enables controlled synthesis of ridged graphene conformations.
- This technique offers a pathway for producing graphene with tunable structures for specific applications.
- Potential applications include graphene-based devices, electrodes, and specialized grids for advanced microscopy techniques.
