Electrically driven thermal light emission from individual single-walled carbon nanotubes

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dc.creatorMann, David
dc.creatorKato, Y. K.
dc.creatorKinkhabwala, Anika
dc.creatorPop, Eric
dc.creatorCao, Jien
dc.creatorWang, Xinran
dc.creatorZhang, Li
dc.creatorWang, Qian
dc.creatorGuo, Jing
dc.creatorDai, Hongjie
dc.date2007-01-09
dc.date.accessioned2026-07-07T07:39:20Z
dc.date.available2026-07-07T07:39:20Z
dc.descriptionLight emission from nanostructures exhibits rich quantum effects and has broad applications. Single-walled carbon nanotubes (SWNTs) are one-dimensional (1D) metals or semiconductors, in which large number of electronic states in a narrow range of energies, known as van Hove singularities, can lead to strong spectral transitions. Photoluminescence and electroluminescence involving interband transitions and excitons have been observed in semiconducting SWNTs, but are not expected in metallic tubes due to non-radiative relaxations. Here, we show that in the negative differential conductance regime, a suspended quasi-metallic SWNT (QM-SWNT) emits light due to joule-heating, displaying strong peaks in the visible and infrared corresponding to interband transitions. This is a result of thermal light emission in 1D, in stark contrast with featureless blackbody-like emission observed in large bundles of SWNTs or multi-walled nanotubes. This allows for probing of the electronic temperature and non-equilibrium hot optical phonons in joule-heated QM-SWNTs.
dc.identifierhttps://arxiv.org/abs/cond-mat/0701165
dc.identifierhttp://arxiv.org/abs/cond-mat/0701165
dc.identifierNature Nano vol. 2, no. 1, pp. 33-38 (2006)
dc.identifierdoi:10.1038/nnano.2006.169
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121412
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleElectrically driven thermal light emission from individual single-walled carbon nanotubes
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