Longitudinal unzipping of carbon nanotubes to form graphene nanoribbons

@article{Kosynkin2009LongitudinalUO,
  title={Longitudinal unzipping of carbon nanotubes to form graphene nanoribbons},
  author={Dmitry V. Kosynkin and Amanda L. Higginbotham and Alexander Sinitskii and Jay R. Lomeda and Ayrat M. Dimiev and Brandi Katherine Price and James M. Tour},
  journal={Nature},
  year={2009},
  volume={458},
  pages={872-876}
}
Graphene, or single-layered graphite, with its high crystallinity and interesting semimetal electronic properties, has emerged as an exciting two-dimensional material showing great promise for the fabrication of nanoscale devices. Thin, elongated strips of graphene that possess straight edges, termed graphene ribbons, gradually transform from semiconductors to semimetals as their width increases, and represent a particularly versatile variety of graphene. Several lithographic, chemical and… 
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References

SHOWING 1-10 OF 34 REFERENCES
Chemically Derived, Ultrasmooth Graphene Nanoribbon Semiconductors
We developed a chemical route to produce graphene nanoribbons (GNR) with width below 10 nanometers, as well as single ribbons with varying widths along their lengths or containing lattice-defined
Bulk production of a new form of sp(2) carbon: crystalline graphene nanoribbons.
TLDR
With this material available to researchers, it should be possible to develop new applications and physicochemical phenomena associated with layered graphene.
Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material.
TLDR
A solution-based method is reported that allows uniform and controllable deposition of reduced graphene oxide thin films with thicknesses ranging from a single monolayer to several layers over large areas, which could represent a route for translating the interesting fundamental properties of graphene into technologically viable devices.
Processable aqueous dispersions of graphene nanosheets.
TLDR
It is reported that chemically converted graphene sheets obtained from graphite can readily form stable aqueous colloids through electrostatic stabilization, making it possible to process graphene materials using low-cost solution processing techniques, opening up enormous opportunities to use this unique carbon nanostructure for many technological applications.
Energy band-gap engineering of graphene nanoribbons.
TLDR
It is found that the energy gap scales inversely with the ribbon width, thus demonstrating the ability to engineer the band gap of graphene nanostructures by lithographic processes.
The rise of graphene.
TLDR
Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
Performance Projections for Ballistic Graphene Nanoribbon Field-Effect Transistors
The upper limit performance potential of ballistic carbon nanoribbon MOSFETs (CNR MOSFETs) is examined. Calculation of the bandstructure of nanoribbons using a single pz-orbital tight-binding method
Ballistic transport in graphene nanostrips in the presence of disorder: importance of edge effects.
Stimulated by recent advances in isolating graphene and similarities to single-wall carbon nanotubes, simulations were performed to assess the effects of static disorder on the conductance of
...
...