Phonon-assisted excitonic recombination channels observed in DNA-wrapped carbon nanotubes using photoluminescence spectroscopy

S. G. Chou, F. Plentz, J. Jiang, R. Saito, D. Nezich, H. B. Ribeiro, A. Jorio, M. A. Pimenta, Ge G. Samsonidze, A. P. Santos, M. Zheng, G. B. Onoa, E. D. Semke, G. Dresselhaus, M. S. Dresselhaus

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115 Citations (Scopus)

Abstract

By using a sample of DNA-wrapped single-wall carbon nanotubes strongly enriched in the (6, 5) nanotube, photoluminescence emissions observed at special excitation energy values were identified with specific mechanisms of phonon-assisted excitonic absorption and recombination processes associated with (6,5) nanotubes, including one-phonon, two-phonon, and some continuous-luminescence processes. Such detailed processes are not separately identified in three-dimensional semiconducting materials. A general theoretical framework is presented to interpret the experimentally observed phonon-assisted processes in terms of excitonic states.

Original languageEnglish
Article number127402
JournalPhysical Review Letters
Volume94
Issue number12
DOIs
Publication statusPublished - 2005 Apr 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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