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Park, Noejung
Computational Physics & Electronic Structure Lab
Research Interests
  • Electronic structure calculation, computational physics, computational material science

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Field emission properties of carbon nanotubes coated with boron nitride

Cited 11 times inthomson ciCited 13 times inthomson ci
Title
Field emission properties of carbon nanotubes coated with boron nitride
Author
Park, NoejungHan, SIhm, J
Keywords
Boron Nitride Coating;  Carbon Nanotubes;  Field Emission
Issue Date
2003-02
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.3, no.1-2, pp.179 - 183
Abstract
Field emission properties of carbon nanotubes coated with a single layer of boron nitride are calculated using the first-principles pseudopotential method. At lower bias voltage, the emission current of the coated nanotube is comparable to that of the bare carbon nanotube and is dominated by the contribution from localized states at the tip of the tube. At higher voltage, newly generated hybridized states between the carbon nanotube tip and the even-membered boron nitride rings contribute significantly to the emission current because they experience a low tunneling barrier compared with the bare carbon nanotube case. Our results suggest that the insulator coating can, besides protecting the nanotube tip from the attack of gas molecules, substantially enhance the field emission current.
URI
https://scholarworks.unist.ac.kr/handle/201301/8569
DOI
10.1166/jnn.2003.207
ISSN
1533-4880
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PHY_Journal Papers
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