Electrical conductance and breakdown in individual CNx multiwalled nanotubes

Burch, Hilary J., Davies, Julia A., Brown, Elisabetta, Hao, Ling, Contera, Sonia Antoranz, Grobert, Nicole and Ryan, J. F. (2006) Electrical conductance and breakdown in individual CNx multiwalled nanotubes. Applied Physics Letters, 89 (14). p. 143110. ISSN 0003-6951

Full content URL: http://doi.org/10.1063/1.2358308

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Item Type:Article
Item Status:Live Archive

Abstract

Doping of carbon nanotubes with nitrogen during growth strongly modifies their electronic structure through n-type doping. This provides the possibility of producing nanotubes with high conductances, independent of tube chirality. To date, electrical measurements on individual nitrogen-doped multiwalled nanotubes (CNx MWNTs) have reported surprisingly low conductances (∼0.01G0). Here the authors present high conductance (1.0±0.3G0) measurements at low bias for individual CNx MWNTs. Conductance increases linearly with voltage at a rate of 0.7±0.2G0∕V until the threshold for electrical breakdown is reached. Discrete current steps of 20±10μA are then observed.

Additional Information:The final published version of this article can be accessed online at https://aip.scitation.org/doi/10.1063/1.2358308
Keywords:Electrical breakdown, Doping, Electrical resistivity, Carbon nanotubes, Electronic structure, Electric measurements
Subjects:F Physical Sciences > F310 Applied Physics
Divisions:College of Science > School of Chemistry
ID Code:33722
Deposited On:17 Oct 2018 08:22

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