TSYBOULSKI, Dmitri A.; ROCHA, John-David R.; BACHILO, Sergei M.; COGNET, Laurent; WEISMAN, R. Bruce

doi:10.1021/nl071561s

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TSYBOULSKI, Dmitri A.
Department of Chemistry, Smalley Institute for Nanoscale Science and Technology, and Center for Biological and Environmental Nanotechnology

ROCHA, John-David R.
Department of Chemistry, Smalley Institute for Nanoscale Science and Technology, and Center for Biological and Environmental Nanotechnology

BACHILO, Sergei M.
Department of Chemistry, Smalley Institute for Nanoscale Science and Technology, and Center for Biological and Environmental Nanotechnology

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Nano Letters. 2007-10, vol. 7, n° 10, p. 2937-3248

American Chemical Society

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Single-nanotube photometry was used to measure the product of absorption cross-section and fluorescence quantum yield for 12 (n,m) structural species of semiconducting SWNTs in aqueous SDBS suspension. These products ranged from 1.7 to 4.5 x 10(-19) cm2/C atom, generally increasing with optical band gap as described by the energy gap law. The findings suggest fluorescent quantum yields of ~8% for the brightest, (10,2) species and introduce the empirical calibration factors needed to deduce quantitative (n,m) distributions from bulk fluorimetric intensities.< Réduire

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Luminescence efficiency

SWNT

single molecule

carbon nanotube

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Structure-Dependent Fluorescence Efficiencies of Individual Single-Walled Carbon Nanotubes

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