化学学报 ›› 2004, Vol. 62 ›› Issue (15): 1385-1391. 上一篇    下一篇

研究论文

BN纳米管的结构与性质

贾建峰, 武海顺, 焦海军   

  1. 山西师范大学化学与材料科学学院, 临汾, 041004
  • 投稿日期:2003-11-10 修回日期:2004-02-24 发布日期:2014-02-17
  • 通讯作者: 武海顺,E-mail:q E-mail:wuhs@dns.sxtu.edu.cn
  • 基金资助:
    教育部骨干教师资助计划项目和国家自然科学基金(No.20341005)资助项目.

Structure and Properties of BN Nanotubes

JIA Jian-Feng, WU Hai-Shun, JIAO Hai-Jun   

  1. School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004
  • Received:2003-11-10 Revised:2004-02-24 Published:2014-02-17

采用CASTEP程序包,在密度泛函理论(DFT)框架内,在较高的理论水平对BN(n,0)(n=3~17)纳米管的几何结构进行了优化,优化在a×a×c的正交超原胞中进行,并对其结合能和电学性质进行了计算.结果发现,BN(n,0)纳米管的结合能随着n的增大而增大,并趋于收敛.BN(n,0)纳米管的禁带宽度随着n的增大而增大,并收敛于5.39 eV.

关键词: BN(n,0)纳米管, 结构, 结合能, 禁带宽度

Under the DFT investigation, by using the CASTEP program package, the zigzag BN(n,0) (n=3~17) nanotubes were studied at higher theoretical level.The optimizing of structure was performed in a×a×c orthogonal supercell.The energy and the electronic property were calculated in the same level.As a result, it was found that the binding energies increase smoothly along with the argument of n and converge at some point.The band-gaps of BN(n,0) nanotubes also increase with the increase of n and converge at 5.39 eV.

Key words: BN(n,0)nanotube, structure, binding energy, band-gap