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Nanoscale study of conduction through carbon nanotube networks

M. Stadermann, S. J. Papadakis, M. R. Falvo, J. Novak, E. Snow, Q. Fu, J. Liu, Y. Fridman, J. J. Boland, R. Superfine, and S. Washburn
Phys. Rev. B 69, 201402(R) – Published 18 May 2004
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Abstract

We present local conductance measurements of carbon nanotube networks with nanometer scale resolution and show that there are discrete drops in conductance that correspond to junctions of metallic nanotubes and semiconducting nanotubes. The anomalies of these networks compared to thin films are shown, and a new method of discerning between semiconducting and metallic single-wall carbon nanotubes is demonstrated.

  • Received 20 January 2004

DOI:https://doi.org/10.1103/PhysRevB.69.201402

©2004 American Physical Society

Authors & Affiliations

M. Stadermann1,*, S. J. Papadakis2, M. R. Falvo3, J. Novak4, E. Snow4, Q. Fu5, J. Liu5, Y. Fridman6, J. J. Boland7, R. Superfine2,3,6, and S. Washburn2,3,6,8

  • 1Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
  • 2Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
  • 3Curriculum in Applied and Materials Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
  • 4Naval Research Laboratory, Nanostructures Section Code 6876, Washington, DC 20375, USA
  • 5Gross Chemistry Laboratory, Duke University, Box 90354, Durham, North Carolina 27708, USA
  • 6Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
  • 7Department of Chemistry, Trinity College, Dublin 2, Ireland
  • 8Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA

  • *Electronic address: staderma@email.unc.edu

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Issue

Vol. 69, Iss. 20 — 15 May 2004

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