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Nanotomy-based production of transferable and dispersible graphene nanostructures of controlled shape and size

Author

Listed:
  • Nihar Mohanty

    (Kansas State University)

  • David Moore

    (Microscopy and Analytical Imaging Laboratory, University of Kansas)

  • Zhiping Xu

    (Tsinghua University)

  • T.S. Sreeprasad

    (Kansas State University)

  • Ashvin Nagaraja

    (Kansas State University)

  • Alfredo Alexander Rodriguez

    (Kansas State University)

  • Vikas Berry

    (Kansas State University)

Abstract

Because of the edge states and quantum confinement, the shape and size of graphene nanostructures dictate their electrical, optical, magnetic and chemical properties. The current synthesis methods for graphene nanostructures do not produce large quantities of graphene nanostructures that are easily transferable to different substrates/solvents, do not produce graphene nanostructures of different and controlled shapes, or do not allow control of GN dimensions over a wide range (up to 100 nm). Here we report the production of graphene nanostructures with predetermined shapes (square, rectangle, triangle and ribbon) and controlled dimensions. This is achieved by diamond-edge-induced nanotomy (nanoscale-cutting) of graphite into graphite nanoblocks, which are then exfoliated. Our results show that the edges of the produced graphene nanostructures are straight and relatively smooth with an ID/IG of 0.22–0.28 and roughness

Suggested Citation

  • Nihar Mohanty & David Moore & Zhiping Xu & T.S. Sreeprasad & Ashvin Nagaraja & Alfredo Alexander Rodriguez & Vikas Berry, 2012. "Nanotomy-based production of transferable and dispersible graphene nanostructures of controlled shape and size," Nature Communications, Nature, vol. 3(1), pages 1-8, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1834
    DOI: 10.1038/ncomms1834
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