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Park, Noejung
Computational Physics & Electronic Structure Lab.
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Carbon nanotube diode fabricated by contact engineering with self-assembled molecules

Author(s)
Kim, Byoung-KyeKim, Ju-JinSo, Hye-MiKong, Ki-jeongChang, HyunjuLee, Jeong-OPark, Noejung
Issued Date
2006-12
DOI
10.1063/1.2403929
URI
https://scholarworks.unist.ac.kr/handle/201301/8512
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33845757632
Citation
APPLIED PHYSICS LETTERS, v.89, no.24
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.
Publisher
AMER INST PHYSICS
ISSN
0003-6951
Keyword
OHMIC CONTACTSSCHOTTKYTRANSISTORSMONOLAYERSGATE

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