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arXiv · 0709.0196

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

Dmitri A. Tsyboulski·John-David R. Rocha·Sergei M. Bachilo·Laurent Cognet·R. Bruce Weisman
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Abstract

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.

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Dmitri A. Tsyboulski, John-David R. Rocha, Sergei M. Bachilo, Laurent Cognet, R. Bruce Weisman. 2007-09-03. Structure-Dependent Fluorescence Efficiencies of Individual Single-Walled Carbon Nanotubes. https://doi.org/10.1021/nl071561s

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