Abstract
Excited-state lifetimes of isolated single-walled semiconducting carbon nanotubes (SWNTs) have been measured for the first time; these excited states, observed over the 400- to 1800-nm spectral domain, possess lifetimes that range from several ps to more than 100 ps. Sub-ps to ps decay components are assigned to relaxation in SWNT bundles. Interrogation of the samples with different SWNT mean diameters further confirms the dependence of the excited-state lifetime on roll-up vector. The ratio of fast and slow decaying component contributions in the first van Hove band can be viewed as a measure of the bundle content.
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78.67.Ch; 78.47.+p; 61.46.+w; 73.22.-f
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Rubtsov, I., Russo, R., Albers, T. et al. Visible and near-infrared excited-state dynamics of single-walled carbon nanotubes. Appl Phys A 79, 1747–1751 (2004). https://doi.org/10.1007/s00339-004-2894-5
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DOI: https://doi.org/10.1007/s00339-004-2894-5