Analysis of photoluminescence from solubilized single-walled carbon nanotubes

Marcus Jones, Chaiwat Engtrakul, Wyatt K. Metzger, Randy J. Ellingson, Arthur J. Nozik, Michael J. Heben, Gary Rumbles

Research output: Contribution to journalArticle

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Abstract

The functional form of the photoluminescence (PL) line shape from individual single-walled carbon nanotube (SWNT) species is found to contain a significant Lorentzian component and the Stokes shift is observed to be very small (-4, and it is suggested that this is lower than the "true" value due to quenching of the PL in bundles by metallic tubes. Time-resolved PL measurements reveal a dominant, luminescence lifetime component of 130 ps that, when combined with a predicted natural radiative lifetime of ∼20 ns, suggests that the true PLQY is ∼6.5×10 -3. Finally, deconvoluted PL excitation spectra are produced for eight SWNT species, and the appearance of a higher-energy excitonic subband is discussed.

Original languageEnglish
Article number115426
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number11
DOIs
Publication statusPublished - Mar 15 2005

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Single-walled carbon nanotubes (SWCN)
Photoluminescence
carbon nanotubes
photoluminescence
radiative lifetime
bundles
line shape
Luminescence
Quenching
quenching
luminescence
tubes
life (durability)
shift
excitation
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Analysis of photoluminescence from solubilized single-walled carbon nanotubes. / Jones, Marcus; Engtrakul, Chaiwat; Metzger, Wyatt K.; Ellingson, Randy J.; Nozik, Arthur J.; Heben, Michael J.; Rumbles, Gary.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 71, No. 11, 115426, 15.03.2005.

Research output: Contribution to journalArticle

Jones, Marcus ; Engtrakul, Chaiwat ; Metzger, Wyatt K. ; Ellingson, Randy J. ; Nozik, Arthur J. ; Heben, Michael J. ; Rumbles, Gary. / Analysis of photoluminescence from solubilized single-walled carbon nanotubes. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 71, No. 11.
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