Applied Physics A

, Volume 78, Issue 8, pp 1175–1179

Can we achieve ultra-low resistivity in carbon nanotube-based metal composites?

Invited rapid communication

DOI: 10.1007/s00339-003-2424-x

Cite this article as:
Hjortstam, O., Isberg, P., Söderholm, S. et al. Appl. Phys. A (2004) 78: 1175. doi:10.1007/s00339-003-2424-x


A concept for creating a future ultra-low-resistivity material based on a carbon nanotube–metal composite is presented. Using a simple effective-medium model it is shown that a room-temperature resistivity 50% lower than Cu is achievable. This article sets a goal for future R&D activities, although a number of technical as well as scientific problems are to be solved before realising the suggested concept. The ultra-low resistivity is possible because the ballistic conducting carbon nanotubes have an electron mean free path several orders of magnitude longer than metals like Cu and Ag. This implies that a system with parallel-connected tubes can indeed have a room-temperature resistivity far below the resistivity of conventional metal conductors like Al, Cu and Ag.

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • O. Hjortstam
    • 1
  • P. Isberg
    • 1
  • S. Söderholm
    • 1
    • 2
  • H. Dai
    • 3
  1. 1.ABB Group Services CenterCorporate ResearchVästeråsSweden
  2. 2.Comlase ABStockholmSweden
  3. 3.Department of ChemistryStanford UniversityStanfordUSA

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