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

Nihar Mohanty, David Moore, Zhiping Xu, T.S. Sreeprasad, Ashvin Nagaraja, Alfredo Alexander Rodriguez and Vikas Berry ()
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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

Nature Communications, 2012, vol. 3, issue 1, 1-8

Abstract: 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

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1834

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DOI: 10.1038/ncomms1834

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