Density enhancement of aligned single-walled carbon nanotube thin films on quartz substrates by sulfur-assisted synthesis.

Journal Article (Journal Article)

The density of the aligned single-walled carbon nanotubes (SWNTs) grown on quartz substrates is an important factor for the performance of fabricated electronic devices. It was discovered that the addition of a sulfur-containing compound (thiophene) to the reaction mixture improved the density of SWNTs by a factor of 2 or more, from approximately 2-4 SWNTs/microm to 6-8 SWNTs/microm under similar growth conditions. It was also observed that along with the increase in nanotube density, the cleanness of the samples improved as well. These effects were demonstrated over a large range of growth conditions, indicating that the addition sulfur makes the growth processes more favorable for the nucleation and growth of aligned SWNTs.

Full Text

Duke Authors

Cited Authors

  • McNicholas, TP; Ding, L; Yuan, D; Liu, J

Published Date

  • October 2009

Published In

Volume / Issue

  • 9 / 10

Start / End Page

  • 3646 - 3650

PubMed ID

  • 19681635

Pubmed Central ID

  • 19681635

Electronic International Standard Serial Number (EISSN)

  • 1530-6992

International Standard Serial Number (ISSN)

  • 1530-6984

Digital Object Identifier (DOI)

  • 10.1021/nl901890x


  • eng