Nano Archive

Exciton energy transfer in pairs of single-walled carbon nanotubes

Qian, Huihong and Georgi, Carsten and Anderson, Neil and Green, Alexander A. and Hersam, Mark C. and Novotny, Lukas and Hartschuh, Achim (2008) Exciton energy transfer in pairs of single-walled carbon nanotubes. NANO LETTERS, 8 (5). pp. 1363-1367.

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We studied the exciton energy transfer in pairs of semiconducting nanotubes using high-resolution optical microscopy and spectroscopy on the nanoscale. Photoluminescence from large band gap nanotubes within bundles is observed with spatially varying intensities due to distance-dependent internanotube transfer. The range of efficient energy transfer is found to be limited to a few nanometers because of competing fast nonradiative relaxation responsible for low photoluminescence quantum yield.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Physical Science > Quantum phenomena
Physical Science > Photonics
ID Code:2317
Deposited By:Anuj Seth
Deposited On:18 Dec 2008 14:32
Last Modified:20 Jan 2009 10:48

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