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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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Effects of oxygen adsorption on carbon nanotube field emitters

Cited 54 times inthomson ciCited 61 times inthomson ci
Title
Effects of oxygen adsorption on carbon nanotube field emitters
Author
Park, NoejungHan, SWIhm, J
Keywords
EMISSION; MECHANISMS; O-2
Issue Date
2001-09
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.64, no.12, pp. -
Abstract
Effects of oxygen adsorption on the field emission of carbon nanotubes are studied through first-principles calculations. Calculated emission currents are significantly enhanced when oxygen is adsorbed at the tip and the underlying physics is explained in terms of the change in the electronic structure by oxidation and the local field increase at the adsorption site. The issue of the current degradation accompanied by the oxidative etching is also addressed. The field-emission-microscopy images on the phosphor screen are simulated, displaying various patterns characteristic of each adsorption configuration.
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DOI
10.1103/PhysRevB.64.125401
ISSN
2469-9950
Appears in Collections:
PHY_Journal Papers
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