Phys. Rev. Lett. 85, 3476–3479 (2000)

Electronic Transport in Y-Junction Carbon Nanotubes

Abstract

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C. Papadopoulos¹, A. Rakitin¹, J. Li¹, A. S. Vedeneev^1,2, and J. M. Xu^1,3
¹Department of Electrical & Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, Canada M5S 3G4
²Russian Academy of Sciences, Institute of Radioengineering and Electronics, Fryazino, Moscow district 141120, Russia
³Division of Engineering, Brown University, Providence, Rhode Island 02912

Received 22 February 2000; published in the issue dated 16 October 2000

Electronic transport measurements were performed on Y-junction carbon nanotubes. These novel junctions contain a large diameter tube branched into smaller ones. Independent measurements using good quality contacts on both individual Y junctions and many in parallel show intrinsic nonlinear transport and reproducible rectifying behavior at room temperature. The results were modeled using classic interface physics for a junction with an abrupt change in band gap due to the change in tube diameter. These Y-junction tubes represent new heterojunctions for nanoelectronics.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.85.3476

DOI:

10.1103/PhysRevLett.85.3476

PACS:

73.61.Tm, 61.46.+w, 73.40.Ei, 85.30.Kk

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Phys. Rev. Lett. 85, 3476–3479 (2000)

Electronic Transport in Y-Junction Carbon Nanotubes