Low-energy electronic states of carbon nanocones in an electric field

Jun Liang Chen, Ming Horng Su, Chi Chuan Hwang, Jian Ming Lu, Chia Chang Tsai

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

The low-energy electronic states and energy gaps of carbon nanocones in an electric field are studied using a single-π-band tight-binding model. The analysis considers five perfect carbon nanocones with disclination angles of 60°, 120°, 180°, 240°and 300°, respectively. The numerical results reveal that the low-energy electronic states and energy gaps of a carbon nanocones are highly sensitive to its geometric shape (i.e. the disclination angle and height), and to the direction and magnitude of an electric field. The electric field causes a strong modulation of the state energies and energy gaps of the nanocones, changes their Fermi levels, and induces zero-gap transitions. The energy-gap modulation effect becomes particularly pronounced at higher strength of the applied electric field, and is strongly related to the geometric structure of the nanocone.

原文English
頁(從 - 到)121-125
頁數5
期刊Nano-Micro Letters
2
發行號2
DOIs
出版狀態Published - 2010

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 表面、塗料和薄膜
  • 電氣與電子工程

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