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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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Adsorption-induced conversion of the carbon nanotube field effect transistor from ambipolar to unipolar behavior

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Title
Adsorption-induced conversion of the carbon nanotube field effect transistor from ambipolar to unipolar behavior
Author
Kang, DHPark, NoejungHyun, JWBae, EJKo, JYKim, JJPark, WJ
Keywords
TRANSPORT
Issue Date
2005-02
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.86, no.9, pp. -
Abstract
We investigate ambipolar to unipolar transition by the effect of ambient air on the carbon nanotube field-effect transistor. A unipolar transport property of the double-walled nanotube field-effect transistor and its conversion from ambipolar behavior are observed. We suggest that adsorptions of oxygen molecules, whose lowest-unoccupied-molecular-orbital state is around the midgap of the carbon nanotube, could suppress the electron channel formation and, consequently, result in the unipolar transport behavior.
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DOI
10.1063/1.1869548
ISSN
0003-6951
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SNS_Journal Papers
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