Exciton energy transfer in pairs of single-walled carbon nanotubes

Huihong Qian; Carsten Georgi; Neil Anderson; Alexander A. Greeny; Mark C. Hersam; Lukas Novotny; Achim Hartschuh

doi:10.1021/nl080048r

Exciton energy transfer in pairs of single-walled carbon nanotubes

Huihong Qian
, Carsten Georgi
, Neil Anderson
, Alexander A. Greeny
, Mark C. Hersam
, Lukas Novotny
, Achim Hartschuh

Research output: Contribution to journal › Article › peer-review

123 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	1363-1367
Number of pages	5
Journal	Nano Letters
Volume	8
Issue number	5
DOIs	https://doi.org/10.1021/nl080048r
State	Published - May 2008
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl080048r

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abstract = "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.",

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AU - Qian, Huihong

AU - Georgi, Carsten

AU - Anderson, Neil

AU - Greeny, Alexander A.

AU - Hersam, Mark C.

AU - Novotny, Lukas

AU - Hartschuh, Achim

PY - 2008/5

Y1 - 2008/5

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AB - 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.

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Exciton energy transfer in pairs of single-walled carbon nanotubes

Abstract

ASJC Scopus subject areas

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