Electronic properties of propylamine-functionalized single-walled carbon nanotubes.

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(Online-Publikation)


Details zur Publikation

Autor(en): Müller M, Meinke R, Maultzsch J, Syrgiannis Z, Hauke F, Pekker Á, Kamarás K, Hirsch A, Thomsen C
Zeitschrift: ChemPhysChem
Jahr der Veröffentlichung: 2010
Band: 11
Heftnummer: 11
Seitenbereich: 2444-2448
ISSN: 1439-7641
Sprache: Englisch


Abstract


We present resonant Raman measurements on single-walled carbon nanotubes (SWCNT) functionalized with propylamine groups at different degrees. Direct nucleophilic addition based on in situ generated primary amides is used for attaching n-propylamine to the sidewalls of SWCNTs. The influence of the amino functionalities on the electronic structure of the nanotubes is investigated. From the Raman resonance profiles of the radial breathing modes (RBMs), the chiral indices of the corresponding tubes are assigned. We observe significant redshifts of the transition energies and a broadening of the resonance windows due to chemical modification of SWCNTs. Similar redshifts are derived from the analysis of the NIR/Vis transmission spectrum. The relative Raman intensities of the functionalized samples and the evaluation of their transmission spectra indicate a diameter dependence of the reactivity as it has been observed for other moieties. By analyzing the defect induced D mode we observe a considerable degree of functionalization accompanied by an almost unharmed tube structure, which ensures that the observed effects are mainly driven by changes of the electronic structure.



FAU-Autoren / FAU-Herausgeber

Hauke, Frank Dr.
Zentralinstitut für Neue Materialien und Prozesstechnik
Hirsch, Andreas Prof. Dr.
Lehrstuhl für Organische Chemie II
Maultzsch, Janina Prof. Dr.
Lehrstuhl für Experimentalphysik
Department Chemie und Pharmazie


Autor(en) der externen Einrichtung(en)
Hungarian Academy of Sciences / Magyar Tudományos Akadémia (MTA)
Technische Universität Berlin


Zitierweisen

APA:
Müller, M., Meinke, R., Maultzsch, J., Syrgiannis, Z., Hauke, F., Pekker, Á.,... Thomsen, C. (2010). Electronic properties of propylamine-functionalized single-walled carbon nanotubes. ChemPhysChem, 11(11), 2444-2448. https://dx.doi.org/10.1002/cphc.201000004

MLA:
Müller, Matthias, et al. "Electronic properties of propylamine-functionalized single-walled carbon nanotubes." ChemPhysChem 11.11 (2010): 2444-2448.

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Zuletzt aktualisiert 2018-10-08 um 05:14