Temperature dependence of the optical excitation lifetime and band gap in chirality assigned semiconducting single-wall carbon nanotubes

F. Simon, Rudolf Pfeiffer, Hans Kuzmany

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19 Citations (Scopus)

Abstract

The temperature dependence of optical excitation lifetime 1Γ and transition energies Eii were measured for bucky papers of single-wall carbon nanotubes (SWCNTs) and inner tubes in double-wall carbon nanotubes (DWCNTs) using resonant Raman scattering on the radial breathing mode. The temperature dependence of Γ and Eii is the same for both types of samples and is independent of tube chirality. The data suggest that electron-phonon interaction is responsible for the temperature dependence of Eii and Γ. The temperature independent contribution to Γ is much larger in SWCNT than in DWCNT samples. This is explained by the different nanotube environment in the two types of samples. Γ for the inner tubes of the DWCNTs is only ∼30 meV below 150 K, which is comparable to that found for individual SWCNTs and is considered as intrinsic to the tubes.

Original languageEnglish
Article number121411
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number12
DOIs
Publication statusPublished - 2006

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Carbon Nanotubes
Photoexcitation
Chirality
chirality
Carbon nanotubes
Energy gap
carbon nanotubes
life (durability)
temperature dependence
tubes
excitation
Temperature
Electron-phonon interactions
breathing
electron phonon interactions
Nanotubes
Raman scattering
nanotubes
Raman spectra

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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title = "Temperature dependence of the optical excitation lifetime and band gap in chirality assigned semiconducting single-wall carbon nanotubes",
abstract = "The temperature dependence of optical excitation lifetime 1Γ and transition energies Eii were measured for bucky papers of single-wall carbon nanotubes (SWCNTs) and inner tubes in double-wall carbon nanotubes (DWCNTs) using resonant Raman scattering on the radial breathing mode. The temperature dependence of Γ and Eii is the same for both types of samples and is independent of tube chirality. The data suggest that electron-phonon interaction is responsible for the temperature dependence of Eii and Γ. The temperature independent contribution to Γ is much larger in SWCNT than in DWCNT samples. This is explained by the different nanotube environment in the two types of samples. Γ for the inner tubes of the DWCNTs is only ∼30 meV below 150 K, which is comparable to that found for individual SWCNTs and is considered as intrinsic to the tubes.",
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journal = "Physical Review B-Condensed Matter",
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AU - Simon, F.

AU - Pfeiffer, Rudolf

AU - Kuzmany, Hans

PY - 2006

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N2 - The temperature dependence of optical excitation lifetime 1Γ and transition energies Eii were measured for bucky papers of single-wall carbon nanotubes (SWCNTs) and inner tubes in double-wall carbon nanotubes (DWCNTs) using resonant Raman scattering on the radial breathing mode. The temperature dependence of Γ and Eii is the same for both types of samples and is independent of tube chirality. The data suggest that electron-phonon interaction is responsible for the temperature dependence of Eii and Γ. The temperature independent contribution to Γ is much larger in SWCNT than in DWCNT samples. This is explained by the different nanotube environment in the two types of samples. Γ for the inner tubes of the DWCNTs is only ∼30 meV below 150 K, which is comparable to that found for individual SWCNTs and is considered as intrinsic to the tubes.

AB - The temperature dependence of optical excitation lifetime 1Γ and transition energies Eii were measured for bucky papers of single-wall carbon nanotubes (SWCNTs) and inner tubes in double-wall carbon nanotubes (DWCNTs) using resonant Raman scattering on the radial breathing mode. The temperature dependence of Γ and Eii is the same for both types of samples and is independent of tube chirality. The data suggest that electron-phonon interaction is responsible for the temperature dependence of Eii and Γ. The temperature independent contribution to Γ is much larger in SWCNT than in DWCNT samples. This is explained by the different nanotube environment in the two types of samples. Γ for the inner tubes of the DWCNTs is only ∼30 meV below 150 K, which is comparable to that found for individual SWCNTs and is considered as intrinsic to the tubes.

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