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Phys. Rev. Lett. 91, 145501 (2003) [4 pages]

Carbon Nanotube “T Junctions”: Formation Pathways and Conductivity

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Madhu Menon*
Department of Physics and Astronomy and Center for Computational Sciences, University of Kentucky, Lexington, Kentucky 40506, USA

Antonis N. Andriotis†
Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O. Box 1527, 71110 Heraklio, Crete, Greece

Deepak Srivastava‡
NASA Ames Research Center, CSC, Mail Stop T27-A1, Moffett Field, California 94035-1000, USA

Inna Ponomareva§ and Leonid A. Chernozatonskii**
Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119991, Russian Federation

Received 20 November 2002; published 30 September 2003

Using tight-binding molecular dynamics we simulate the formation of single wall carbon nanotube T junctions via the fusing of two nanotubes. We propose energetically efficient pathways for this process in which all atoms maintain their sp2 arrangements throughout. Recent experimental advances have greatly increased the plausibility of synthesizing T junctions as proposed in the simulations. We further report I-V characteristics of the formed junctions.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.145501
DOI:
10.1103/PhysRevLett.91.145501
PACS:
61.46.+w, 68.37.Lp, 81.07.De

*Electronic address: super250@pop.uky.edu

†Electronic address: andriot@iesl.forth.gr

‡Electronic address: deepak@nas.nasa.gov

§Electronic address: iponomar@sky.chph.ras.ru

**Electronic address: cherno@sky.chph.ras.ru

 
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