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Applied Physics Letters / Volume 100 / Issue 4 / DEVICE PHYSICS

Appl. Phys. Lett. 100, 043505 (2012); http://dx.doi.org/10.1063/1.3679397 (4 pages)

Ceasing of voltage switching amongst graphitic shells in multiwalled carbon nanotubes: A route toward stability

Neha Kulshrestha1, Abhishek Misra2, Reeti Bajpai1, Soumyendu Roy1, and D. S. Misra1

1Department of Physics, Indian Institute of Technology Bombay, Mumbai 400076, India
2Centre of Excellence in Nanoelectronics, Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India

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(Received 9 December 2011; accepted 5 January 2012; published online 24 January 2012)

Weakly interacting graphitic shells of different resistivities within multiwalled carbon nanotubes (MWNTs) cause instability in current and thus limit their reliability for electronic device applications. We here demonstrate voltage switching amongst graphitic shells of MWNTs by applying current sweeps with observed switching time in the range of 100–400 ms. We further demonstrate ceasing of this switching behaviour by local metal deposition on the MWNTs. After metal deposition, the graphitic shells behave like resistive wires connected altogether. This concept of metal deposition benefits in the higher conductivity and stable currents for MWNTs and proves their strong candidature as interconnecting wires.

© 2012 American Institute of Physics

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KEYWORDS, PACS, and IPC

Keywords

carbon nanotubes, electrical conductivity transitions, electrical resistivity, reliability

PACS

International Patent Classification (IPC)

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3679397

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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