Direct observation of the strong interaction between carbon nanotubes and quartz substrate

Published

Journal Article

We present a chemical vapor deposition (CVD) method for the growth of uniform single-walled carbon nanotube (SWNT) arrays on a stable temperature (ST)-cut single crystal quartz substrate using a mixture of methanol and ethanol as carbon source. It is found that introducing methanol during the growth can improve the density and the length of the well-aligned SWNTs in the arrays as well as increase the SWNT/quartz interaction. Obvious "up-shifts" of G-band frequencies in the Raman spectra have been found for the aligned SWNTs. A welldesigned control experiment shows that the G-band "up-shifts" originate from the strong interaction between SWNTs and the quartz substrate. It is believed that exploring this interaction will help to elucidate the growth mechanism; ultimately, this will help realize the promise of controlling the chirality of SWNTs. © Tsinghua University Press and Springer-Verlag 2009.

Full Text

Duke Authors

Cited Authors

  • Ding, L; Zhou, W; McNicholas, TP; Wang, J; Chu, H; Li, Y; Liu, J

Published Date

  • November 1, 2009

Published In

Volume / Issue

  • 2 / 11

Start / End Page

  • 903 - 910

Electronic International Standard Serial Number (EISSN)

  • 1998-0000

International Standard Serial Number (ISSN)

  • 1998-0124

Digital Object Identifier (DOI)

  • 10.1007/s12274-009-9093-9

Citation Source

  • Scopus