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Preparation and Characterization of C60/Graphene Hybrid Nanostructures
Published on: May 15, 2018
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The structure of junctions between carbon nanotubes and graphene shells
Peter J F Harris1, Irene Suarez-Martinez, Nigel A Marks
1Electron Microscopy Laboratory, Department of Chemistry, J.J. Thomson Building, University of Reading, Whiteknights, Reading RG6 6AF, UK. p.j.f.harris@reading.ac.uk.
Nanoscale
|November 4, 2016
Summary
Researchers studied junctions between carbon nanotubes and graphene, finding specific angles crucial for lattice symmetry. These findings could enable new 3D carbon materials and nanoelectronic devices.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Physics
Background:
- Junctions between carbon nanotubes and graphene are of interest for nanoelectronics and 3D carbon materials.
- Few detailed experimental analyses exist for nanotube-graphene connections.
Purpose of the Study:
- To experimentally analyze junctions between carbon nanotubes and graphene shells.
- To understand the structural and symmetry constraints of these junctions.
Main Methods:
- Transmission electron microscopy was used to examine junctions in a material produced by passing current through graphite.
- Molecular modeling was employed to analyze lattice continuity and symmetry.
Main Results:
- Junction angles were found to be non-random, clustering around multiples of 30°.
- These specific angles are consistent with the hexagonal lattice symmetry of carbon.
- Continuous lattice formation requires large carbon rings at the junction.
Conclusions:
- The observed junction angles are dictated by the hexagonal lattice symmetry.
- New configurations for 3D carbon architectures are proposed.
- Understanding junction formation mechanisms is key for future applications.
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