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Nano Lett. 2011 Aug 10;11(8):3113-6. doi: 10.1021/nl2011142. Epub 2011 Jul 14.

BN white graphene with "colorful" edges: the energies and morphology.

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Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas 77005, United States.


Interfaces play a key role in low dimensional materials like graphene or its boron nitrogen analog, white graphene. The edge energy of hexagonal boron nitride (h-BN) has not been determined as its lower symmetry makes it difficult to separate the opposite B-rich and N-rich zigzag sides. We report unambiguous energy values for arbitrary edges of BN, including the dependence on the elemental chemical potentials of B and N species. A useful manifestation of the additional Gibbs degree of freedom in the binary system, this dependence offers a way to control the morphology of pure BN or its carbon inclusions and to engineer their electronic and magnetic properties.


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