Structure of boron nitride nanoscale cones: Ordered stacking of and disclinations

L. Bourgeois, Y. Bando, W. Han, T. Sato

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Recently discovered boron nitride (BN) nanoscale cone particles are shown to consist of an ordered stacking of seamless conical shells. High-resolution transmission electron microscopy and nanobeam electron diffraction allowed the orientation of the BN hexagonal rings to be determined. In all but one case, the results conformed with a model of orderly stacked (Formula presented) disclinations, which is the smallest cone geometry ensuring the presence of B-N bonds only. One case of a nanoscale cone constituted of (Formula presented) disclinations was found, implying that structures containing line defects of non-B-N bonds may form.

Original languageEnglish
Pages (from-to)7686-7691
Number of pages6
JournalPhysical Review B
Issue number11
Publication statusPublished - 1 Jan 2000
Externally publishedYes

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