Thermal and electrical transport in ultralow density single-walled carbon nanotube networks

Ke Jia Zhang; Abhishek Yadav; Kyu Hun Kim; Youngseok Oh; Mohammad F Islam; Ctirad Uher; Kevin P Pipe

doi:10.1002/adma.201300059

Thermal and electrical transport in ultralow density single-walled carbon nanotube networks

Adv Mater. 2013 Jun 4;25(21):2926-31. doi: 10.1002/adma.201300059. Epub 2013 Apr 22.

Authors

Ke Jia Zhang¹, Abhishek Yadav, Kyu Hun Kim, Youngseok Oh, Mohammad F Islam, Ctirad Uher, Kevin P Pipe

Affiliation

¹ Department of Mechanical Engineering, University of Michigan, 2350 Hayward, Ann Arbor, MI 48109, USA.

PMID: 23606438
DOI: 10.1002/adma.201300059

Abstract

The thermal, electrical, and thermoelectric properties of aerogels of single-walled carbon nanotubes are characterized. Their ultralow density enables the transport properties of the junctions to be distinguished from those of the nanotubes themselves. Junction thermal and electrical conductances are found to be orders of magnitude larger than those found in typical dense SWCNT networks. In particular, the average junction thermal conductance is close to the theoretical maximum for a van der Waals bonded SWCNT junction.

Keywords: aerogels; carbon nanotubes; electrical conductivity; thermal conductivity; thermopower.