Hexagonal boron nitride

Hexagonal boron nitride (h-BN) is a lamellar dielectric material with striking similarities to graphite.  Like graphite, it is available in bulk, in exfoliated form, for use as a lubricant[13].  The honeycomb structure of the h-BN lattice is well matched with the graphite lattice.  The lattice constant of h-BN, at 0.250nm, is only 2% greater than that of graphite[14].  In light of this similarity, it has been suggested that graphene and h-BN domains may be combined within a single molecule to form single-molecule electronic devices[15]The synthesis of fullerene-like h-BN nanostructures by substitution of BN within fullerenes has been demonstrated[16].  It would be interesting to attempt this same h-BN substitution reaction with graphene origami.  There is a tantalizing possibility that we could selectively perforate curved graphite at sites of high curvature and fill in the gaps with h-BN.  A precedent for in-plane h-BN/graphene junction formation may exist in the fullerene literature[17].



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Hexagonal boron nitride

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Before h-BN is blended with graphene to form single-molecule circuits, h-BN may be used to inhibit oxidation in graphitic materials[18]