Quantitative Analysis of Optical Spectra from Individual Single-Wall Carbon Nanotubes

We discuss how tight-binding band-structure calculations with a chirality- and diameter-dependent nearest-neighbor hopping integral may be used to relate well resolved features in the UV-VIS-NIR spectra of individual single-wall carbon nanotubes (SWNTs) to electronic excitations in specific tube typ...

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Veröffentlicht in:	Nano letters 2003-03, Vol.3 (3), p.383-388
Hauptverfasser:	Hagen, Axel, Hertel, Tobias
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals Exact sciences and technology Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	We discuss how tight-binding band-structure calculations with a chirality- and diameter-dependent nearest-neighbor hopping integral may be used to relate well resolved features in the UV-VIS-NIR spectra of individual single-wall carbon nanotubes (SWNTs) to electronic excitations in specific tube types. The assignment of (n,m) indices to interband transitions in specific tube types can support a quantitative analysis of absorption spectra which may eventually be used for rapid screening and optimization of sample composition during SWNT synthesis.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl020237o