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Novel electrical switching behaviour and logic in carbon nanotube Y-junctions

Bandaru, P. R. and Daraio, C. and Jin, S. and Rao, A. M. (2005) Novel electrical switching behaviour and logic in carbon nanotube Y-junctions. Nature Materials, 4 (9). pp. 663-666. ISSN 1476-1122. doi:10.1038/nmat1450.

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Carbon-nanotube-based electronics offers significant potential as a nanoscale alternative to silicon-based devices for molecular electronics technologies. Here, we show evidence for a dramatic electrical switching behaviour in a Y-junction carbon-nanotube morphology. We observe an abrupt modulation of the current from an on- to an off-state, presumably mediated by defects and the topology of the junction. The mutual interaction of the electron currents in the three branches of the Y-junction is shown to be the basis for a potentially new logic device. This is the first time that such switching and logic functionalities have been experimentally demonstrated in Y-junction nanotubes without the need for an external gate. A class of nanoelectronic architecture and functionality, which extends well beyond conventional field-effect transistor technologies, is now possible.

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Daraio, C.0000-0001-5296-4440
Additional Information:© 2005 Nature Publishing Group. Received 16 March 2005; Accepted 8 June 2005; Published online 14 August 2005. P.R.B. acknowledges useful discussions with M. Di Ventra and J. Lagerkvist. We also thank graduate students N. Gothard and J. Gaillard for synthesizing the Y-junction nanotubes, and P. Yu who set up the LabView programs for data acquisition. We acknowledge the support of the work by NSF-NIRTs under Grant numbers DMI-0210559, DMI-0303790, DMI-0304019 and University of California Discovery Fund under Grant No. ele02-10133/Jin. The authors declare that they have no competing financial interests.
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University of Californiaele02-10133/Jin
Issue or Number:9
Record Number:CaltechAUTHORS:20161004-121730280
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Official Citation:Novel electrical switching behaviour and logic in carbon nanotube Y-junctions P. R. Bandaru, C. Daraio, S. Jin and A. M. Rao Nature Materials 4, 663 - 666 (2005) doi:10.1038/nmat1450
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70820
Deposited By: Tony Diaz
Deposited On:04 Oct 2016 19:33
Last Modified:11 Nov 2021 04:35

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