Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Electronic Structure of Carbon Nanotubes with Finite Length : Tight Binding Theory

  • Moon, Won-Ha (Department of Electrical and Electronic Engineering, Chung Ang University) ;
  • Kim, Won-Woo (Department of Electrical and Electronic Engineering, Chung Ang University) ;
  • Hwang, Ho-Jung (Department of Electrical and Electronic Engineering, Chung Ang University)
  • Published : 2002.03.01
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Abstract

The electronic properties of Carbon Nanotube(CNT) are currently the focus of considerable interest. In this paper, the electronic properties of finite length effect in CNT for the carbon nano-scale device is presented. To Calculate the electronic properties of CNT, Empirical potential method (the extended Brenner potential for C-Si-H) for carbon and Tight Binding molecular dynamic (TBMD) simulation are used. As a result of study, we have known that the value of the band gap decreases with increasing the length of the tube. The energy band gap of (6,6) armchair CNT have the ranges between 0.3 eV and 2.5 eV. Also, our results are in agreements with the result of the other computational techniques.

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References

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