Controlled nanocutting of graphene

By L. Ci, Zhiping Xu, Lili Wang, Wei Gao, F. Ding, Kevin F. Kelly, Boris I. Yakobson, Pulickel M. Ajayan. 2008

453 citations recorded by the source corpus.

Rapid progress in graphene-based applications is calling for new processing techniques for creating graphene components with different shapes, sizes, and edge structures. Here we report a controlled cutting process for graphene sheets, using nickel nanoparticles as a knife that cuts with nanoscale precision. The cutting proceeds via catalytic hydrogenation of the graphene lattice, and can generate graphene pieces with specific zigzag or armchair edges. The size of the nanoparticle dictates the edge structure that is produced during the cutting. The cutting occurs along straight lines and along symmetry lines, defined by angles of 60° or 120°, and is deflected at free edges or defects, allowing practical control of graphene nano-engineering.

Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/890835739cc0da6a7dbcd3e5a70be5f4ffb24280

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In Biomedical Engineering

In Electrical and Electronic Engineering

In Materials Chemistry

Citations in the corpus

Modeling, Analysis, and Design of Graphene Nano-Ribbon Interconnects (2009, background): “It should be noted that there are reports that graphene can be cut along certain crystallographic directions and potentially produce ac- or zz-GNRs with smooth edges using nanoparticles [39].”
Carbon Nanomaterials for Next-Generation Interconnects and Passives: Physics, Status, and Prospects (2009, background): “nanoparticles [109], this approach is not controllable: neither the diameter of the particles (which implies the slot width) nor the moving direction of the particles (which implies the”
Fracture of graphene: a review (2015, methodology): “Using nickel nanoparticles in a hydrogen atmosphere as a knife with nanoscale precision, Ci et al. (2008) reported a controlledprocess of cuttinggraphene sheets to create graphene ribbons (Fig.”