Boron nitride nanosystems of regular geometry

Molar Binding Energy of Zigzag and Armchair Single-Walled Boron Nitride Nanotubes

“…However, neglecting the insignificant redistribution of valence electrons arisen from association of atoms into a molecular or crystalline structure, the quasi-classical selfaction energy of the substance is approximated by the sum of self-action energies of constituent atoms: A complete quasi-classical theory of substance including calculation schemes for structural and binding, as well as for electronic spectrum characteristics, one can find in [102,103]. These schemes have been applied successfully for Na molecular and crystalline structures [104], various diatomic molecules [60,61], boron nanotubes [105,106], and mainly for one-, two-and threedimensional structural modifications of boron nitridediatomic molecule, isolated plane sheet, hexagonal h-BN, cubic c-BN, and wurtzite-like w-BN crystals [59,60,64,[73][74][75]107,108].…”

“…This task has been solved in [87,108,109] for regular (achiral), i.e., zigzag (n,0) and armchair (n,n) BN nanotubes. A model of regular nanotubes used here assumes that all atomic sites are located on cylindrical surface at the vertexes of regular hexagons broken along B-N or B-B and N-N diagonals, i.e., the expected small differences in bond length distinguished by their orientation toward the tube axis are neglected.…”

“…A model of regular nanotubes used here assumes that all atomic sites are located on cylindrical surface at the vertexes of regular hexagons broken along B-N or B-B and N-N diagonals, i.e., the expected small differences in bond length distinguished by their orientation toward the tube axis are neglected. Namely, radii ( ,0) n R and ( , ) n n R of the zigzag and armchair nanotubes have been obtained [87,108] in terms of the nanotube index 1, 2,3,... n  and the structure parameter a :…”

“…Detailed regular geometries of zigzag and armchair BN nanotubes have been described in [108,109] using cylindrical coordinates ( , , ) z   , which are useful for calculating binding energy. A unit cell of zigzag nanotubes consists of 4 atomic rings in parallel planes perpendicular to the axis.…”

Gradient and Layered Boron Nitride Formation Under Effect of Concentrated Light in a Flow of Nitrogen

“…When compared to three-dimensional (3D) bulk substances, low-dimensional structures are anticipated to exhibit new properties due to quantum confinement and/or surface and interfacial effects. 3 Their unusual physical and chemical properties [4][5][6] can promote novel applications in engineering. Boron nitride low-dimensional materials are among the most promising inorganic nanosystems explored so far.…”