Adsorption of Oxygen Molecules on Individual Single-Wall Carbon Nanotubes
Our study of the adsorption of oxygen molecules on individual semiconductiong single-walled carbon nanotubes at ambient conditions reveals that the adsorption is physisorption, the resistance without O2 increases by approximately two orders of magnitude as compared to that with O2, and the sensitive response is due to the pinning of the Fermi level near the top of the valence band of the tube, resulting from impurity states of O2 appearing above the valence band.
A. V. Chernatynskiy et al., "Adsorption of Oxygen Molecules on Individual Single-Wall Carbon Nanotubes," Journal of Applied Physics, vol. 99, no. 3, American Institute of Physics Publishing (AIP), Feb 2006.
The definitive version is available at http://dx.doi.org/10.1063/1.2163008
Keywords and Phrases
Oxygen molecules; Physisorption; Single-wall carbon nanotubes; Adsorption; Fermi level; Oxygen; Semiconductor materials; Carbon nanotubes
International Standard Serial Number (ISSN)
Article - Journal
© 2006 American Institute of Physics (AIP) Publishing, All rights reserved.