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Title: Radiative lifetimes and coherence lengths of one-dimensional excitons in single-walled carbon nanotubes
Authors: Miyauchi, Yuhei  kyouindb  KAKEN_id  orcid (unconfirmed)
Hirori, Hideki  kyouindb  KAKEN_id  orcid (unconfirmed)
Matsuda, Kazunari  kyouindb  KAKEN_id
Kanemitsu, Yoshihiko  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 金光, 義彦
Keywords: carbon nanotubes
coherence length
radiative lifetimes
Issue Date: Aug-2009
Publisher: American Institute of Physics
Journal title: Physical Review B
Volume: 80
Issue: 8
Thesis number: 081410(R)
Abstract: We evaluated the radiative lifetimes and the one-dimensional exciton coherence lengths in single-walled carbon nanotubes (SWNTs). The radiative lifetimes determined from simultaneous measurements of photoluminescence (PL) lifetimes and PL quantum yields range from ~3 to 10 ns, and slightly increase with the tube diameter. The exciton coherence lengths in SWNTs are of the order of 10 nm, as deduced from the experimentally obtained radiative lifetimes, and they are about ten times larger than the exciton Bohr radius along the tube axis.
Rights: c 2009 The American Physical Society
DOI(Published Version): 10.1103/PhysRevB.80.081410
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