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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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Carbon nanotube diode fabricated by contact engineering with self-assembled molecules

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Title
Carbon nanotube diode fabricated by contact engineering with self-assembled molecules
Author
Kim, Byoung-KyeKim, Ju-JinSo, Hye-MiKong, Ki-jeongChang, HyunjuLee, Jeong-OPark, Noejung
Keywords
OHMIC CONTACTS; SCHOTTKY; TRANSISTORS; MONOLAYERS; GATE
Issue Date
2006-12
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.89, no.24, pp. -
Abstract
The authors report the construction of carbon nanotube Schottky diodes by covering a selectively exposed area of the electrode with self-assembling molecules. Two self-assembling molecules with different polarities, 2-aminoethanethiol and 3-mercaptopropionic acid, were used to modify the Fermi level lineup at the selected contact. The devices showed p -type behavior with symmetric I-V showing clear rectifying behavior after treatment of one contact with 2-aminoethanethiol. Their experiment, in conjunction with the results of ab initio electronic structure calculations, suggests that the diode action stems from the asymmetric Fermi level lineup between the bare and engineered contacts.
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DOI
10.1063/1.2403929
ISSN
0003-6951
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PHY_Journal Papers
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