Adsorption of Oxygen Molecules on Individual Single-Wall Carbon Nanotubes

Author

Aleksandr V. Chernatynskiy, Missouri University of Science and TechnologyFollow
Sharvil C. Desai
Gamini U. Sumanasekera
Chakram S. Jayanthi
Shiyu Wu
Bhaskar Nagabhirava
Bruce W. Alphenaar

Abstract

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.

Recommended Citation

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 (AIP) Publishing, Feb 2006.

The definitive version is available at https://doi.org/10.1063/1.2163008

Department(s)

Physics

Keywords and Phrases

Oxygen molecules; Physisorption; Single-wall carbon nanotubes; Adsorption; Fermi level; Oxygen; Semiconductor materials; Carbon nanotubes

International Standard Serial Number (ISSN)

0021-8979

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 American Institute of Physics (AIP) Publishing, All rights reserved.

Publication Date

01 Feb 2006