Growth and Dissolve of Defects in Boron Nitride Nanotube

  • Lee, Jun-Ha (Sangmyung University, Computer Systems Engineering, Information Display Center) ;
  • Lee, Hoong-Joo (Sangmyung University, Computer Systems Engineering, Information Display Center)
  • Published : 2004.09.01

Abstract

The defect formation energy of boron nitride (BN) nanotubes is investigated using molecular-dynamics simulation. Although the defect with tetragon-octagon pairs (4-88-4) is favored in the flat cap of BN nanotubes, BN clusters, and the growth of BN nanotubes, the formation energy of the 4-88-4 defect is significantly higher than that of the pentagon-heptagon pairs (5-77-5) defect in BN nanotubes. The 5-77-5 defect reduces the effect of the structural distortion caused by the 4-88-4 defect, in spite of homoelemental bonds.

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