Adsorption of oxygen molecules on individual single-wall carbon nanotubes
| Autor: | Sharvil Desai, B. Nagabhirava, Bruce W. Alphenaar, Chakram Jayanthi, Gamini Sumanasekera, Shi-Yu Wu, A. Tchernatinsky |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Orders of magnitude (temperature) Fermi level General Physics and Astronomy chemistry.chemical_element Carbon nanotube Oxygen law.invention Condensed Matter::Materials Science symbols.namesake Adsorption chemistry Physisorption Chemical physics Impurity law Physics::Atomic and Molecular Clusters symbols Condensed Matter::Strongly Correlated Electrons Physics::Chemical Physics Carbon |
| Zdroj: | Journal of Applied Physics. 99:034306 |
| ISSN: | 1089-7550 0021-8979 |
| Popis: | Our study of the adsorption of oxygen molecules on individual semiconductiong single-walled carbon nanotubes at ambient conditions reveals that the adsorption is physisorption, that the resistance without O2 increases by ~two orders of magnitude as compared to that with O2, and that 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. |
| Databáze: | OpenAIRE |
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