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Stability and electronic structures of double-walled armchair germanium carbide nanotubes
Journal article   Peer reviewed

Stability and electronic structures of double-walled armchair germanium carbide nanotubes

J. Song and D.J. Henry
Computational Materials Science, Vol.111, pp.86-90
2016
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Abstract

First-principle calculations based on density functional theory have been used to investigate the stability and electronic structures of double-walled (n1, n1)-(n2, n2) (4 ≤ n1 ≤ 8, n1 + 3 ≤ n2 ≤ n1 + 6) germanium carbide nanotubes (GeCNTs). For any given (n1, n1) inner tube, the corresponding (n1, n1)-(n1 + 5, n1 + 5) GeCNT has the highest formation energy and binding energy per atom, which indicate that the (n1, n1)-(n1 + 5, n1 + 5) nanotube is stable. The (5, 5)-(10, 10) GeCNT has been found to be a particularly stable geometry. The interlayer interaction between the two layers of the double-walled GeCNT leads to an obvious coupling, which results in a narrowing of the band gap.

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Collaboration types
Domestic collaboration
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Citation topics
2 Chemistry
2.76 2D Materials
2.76.1524 Boron Nitride Nanomaterials
Web Of Science research areas
Materials Science, Multidisciplinary
ESI research areas
Materials Science
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