Electronic structure of nanocones of boron nitrite

Details Electronic structure of nanocones of boron nitrite Electronic structure of nanocones of boron nitrite

2004-09-21

arxiv.org/abs/cond-mat/0409558v1

Applied Physics Letters, vol 82 (14), p. 2323-2325, 7 April 2003

Physics

Condensed Matter

Materials Science

9 pages in preprint format + 4 figure files

Scientific paper

We apply first-principles calculations to study the electronic structure of boron nitride nanocones with disclinations of different angles $\theta=n\pi/3$. Nanocones with odd values of $n$ present antiphase boundaries that cause a reduction of the work function of the nanocones, relative to the bulk BN value, by as much as 2 eV. In contrast, nanocones with even values of $n$ do not have such defects and present work functions that are very similar to the BN bulk value. These results should have strong consequences for the field emission properties of boron nitride nanocones and nanotubes.

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