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Bright infrared emission from electrically induced excitons in carbon nanotubes.

Publication ,  Journal Article
Chen, J; Perebeinos, V; Freitag, M; Tsang, J; Fu, Q; Liu, J; Avouris, P
Published in: Science (New York, N.Y.)
November 2005

We used the high local electric fields at the junction between the suspended and supported parts of a single carbon nanotube molecule to produce unusually bright infrared emission under unipolar operation. Carriers were accelerated by band-bending at the suspension interface, and they created excitons that radiatively recombined. This excitation mechanism is approximately 1000 times more efficient than recombination of independently injected electrons and holes, and it results from weak electron-phonon scattering and strong electron-hole binding caused by one-dimensional confinement. The ensuing high excitation density allows us to observe emission from higher excited states not seen by photoexcitation. The excitation mechanism of these states was analyzed.

Duke Scholars

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Published In

Science (New York, N.Y.)

DOI

EISSN

1095-9203

ISSN

0036-8075

Publication Date

November 2005

Volume

310

Issue

5751

Start / End Page

1171 / 1174

Related Subject Headings

  • General Science & Technology
 

Citation

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Chen, J., Perebeinos, V., Freitag, M., Tsang, J., Fu, Q., Liu, J., & Avouris, P. (2005). Bright infrared emission from electrically induced excitons in carbon nanotubes. Science (New York, N.Y.), 310(5751), 1171–1174. https://doi.org/10.1126/science.1119177
Chen, Jia, Vasili Perebeinos, Marcus Freitag, James Tsang, Qiang Fu, Jie Liu, and Phaedon Avouris. “Bright infrared emission from electrically induced excitons in carbon nanotubes.Science (New York, N.Y.) 310, no. 5751 (November 2005): 1171–74. https://doi.org/10.1126/science.1119177.
Chen J, Perebeinos V, Freitag M, Tsang J, Fu Q, Liu J, et al. Bright infrared emission from electrically induced excitons in carbon nanotubes. Science (New York, NY). 2005 Nov;310(5751):1171–4.
Chen, Jia, et al. “Bright infrared emission from electrically induced excitons in carbon nanotubes.Science (New York, N.Y.), vol. 310, no. 5751, Nov. 2005, pp. 1171–74. Epmc, doi:10.1126/science.1119177.
Chen J, Perebeinos V, Freitag M, Tsang J, Fu Q, Liu J, Avouris P. Bright infrared emission from electrically induced excitons in carbon nanotubes. Science (New York, NY). 2005 Nov;310(5751):1171–1174.
Journal cover image

Published In

Science (New York, N.Y.)

DOI

EISSN

1095-9203

ISSN

0036-8075

Publication Date

November 2005

Volume

310

Issue

5751

Start / End Page

1171 / 1174

Related Subject Headings

  • General Science & Technology