Effects of gas adsorption and collisions on electrical transport in single-walled carbon nanotubes

G. U. Sumanasekera, C. K.W. Adu, S. Fang, P. C. Eklund

Research output: Contribution to journalArticle

349 Scopus citations


The effects of gas adsorption and collisions on the thermopower and resistivity of mats of tangled single-walled nanotube (SWNT) bundles were studied. SWNT samples were prepared by lightly pressing the fibrous powder into thin pellets or mats. Thermoelectric (S) data were collected using a heat pulse technique. The four-probe resistance (R) was measured in a van der Pauw geometry using a lock-in amplifier by a standard low frequency ac method. Results indicate that the transport properties of SWNT bundles are sensitive to even inert gases present in the sample chamber.

Original languageEnglish (US)
Pages (from-to)1096-1099
Number of pages4
JournalPhysical Review Letters
Issue number5
StatePublished - Jul 31 2000


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this