Title: In situ assessment of carbon nanotube diameter distribution with photoelectron spectroscopy
Authors: de los Arcos, T. ×
Garnier, M.G.
Oelhafen, P.
Seo, Jin Won
Domingo, C.
Garcia-Ramos, J.V.
Sanchez-Cortes, V. #
Issue Date: May-2005
Publisher: American physical soc
Series Title: Physical review b vol:71 issue:20 pages:-
Article number: 205416
Abstract: In situ UV-photoelectron spectroscopy (He I and He it) was performed on multiwalled carbon nanotubes (CNTs) with clearly differentiated diameter distributions. A significant dependence of valence- and conduction-band characteristics on the mean CNT diameter was observed, which was determined by high-resolution TEM and micro-Raman spectroscopy. The decrease of relative intensity of the pi states at -3 eV in the He II experiments, indicative of increasing rehybridization between orbitals, was directly correlated with decreasing mean diameters. Furthermore, a progressive broadening of the unoccupied sigma* band at 7.6 eV was found in the He I spectra.
ISSN: 1098-0121
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physical Metallurgy and Materials Engineering Section (-)
× corresponding author
# (joint) last author

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