Nano Archive

Structure-dependent fluorescence efficiencies of individual single-walled cardon nanotubes

Tsyboulski, Drnitri A. and Rocha, John-David R. and Bachilo, Sergei M. and Cognet, Laurent and Weisman, R. Bruce (2007) Structure-dependent fluorescence efficiencies of individual single-walled cardon nanotubes. NANO LETTERS, 7 (10). pp. 3080-3085.

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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 single-walled carbon nanotubes in aqueous SDBS suspension. These products ranged from 1.7 to 4.5 x 10(-19) cm(2)/C atom, generally increasing with optical band gap as described by the energy gap law. The findings suggest fluorescent quantum yields of similar to 8% for the brightest, (10,2) species and introduce the empirical calibration factors needed to deduce quantitative (n,m) distributions from bulk fluorimetric intensities.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanostructured materials
ID Code:3248
Deposited By:Anuj Seth
Deposited On:13 Jan 2009 16:54
Last Modified:20 Jan 2009 15:48

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