Doping of single-walled carbon nanotube bundles by Brønsted acids

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Graupner R, Abraham J, Vencelová A, Seyller T, Hennrich F, Kappes M, Hirsch A, Ley L
Zeitschrift: Physical Chemistry Chemical Physics
Verlag: Royal Society of Chemistry
Jahr der Veröffentlichung: 2003
Band: 5
Heftnummer: 24
Seitenbereich: 5472-5476
ISSN: 1463-9076
eISSN: 1463-9084


Using X-ray induced photoelectron spectroscopy, the influence of Brønsted acids, namely sulfuric, nitric, and hydrochloric acid on the electronic properties of single-walled carbon nanotubes (SWCNTs) was investigated. Doping effects were monitored by changes in binding energy of the C 1s core level of the nanotubes. For all three acids, an acceptor type doping of the SWCNTs was observed by a shift of the C 1s core level towards lower binding energies. The inferred change of the Fermi-level position was 0.5 eV in the case of HSO, 0.2 eV in the case of HNO, and 0.1 eV in the case of HCl. For HNO and HCl the doping was found to be unstable. The S 2p, N 1s, and Cl 2p core level spectra of the corresponding acid showed spectral features which can be attributed to the respective oxidation state of these anions in the acid, indicating that doping was induced by intercalation.

FAU-Autoren / FAU-Herausgeber

Graupner, Ralf PD Dr.
Naturwissenschaftliche Fakultät
Hirsch, Andreas Prof. Dr.
Lehrstuhl für Organische Chemie II
Ley, Lothar Prof. Dr.
Naturwissenschaftliche Fakultät
Seyller, Thomas PD Dr.
Lehrstuhl für Laserphysik

Autor(en) der externen Einrichtung(en)
Karlsruhe Institute of Technology (KIT)


Graupner, R., Abraham, J., Vencelová, A., Seyller, T., Hennrich, F., Kappes, M.,... Ley, L. (2003). Doping of single-walled carbon nanotube bundles by Brønsted acids. Physical Chemistry Chemical Physics, 5(24), 5472-5476.

Graupner, Ralf, et al. "Doping of single-walled carbon nanotube bundles by Brønsted acids." Physical Chemistry Chemical Physics 5.24 (2003): 5472-5476.


Zuletzt aktualisiert 2018-08-08 um 21:38