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arXiv · 1010.0660

Energy loss of the electron system in individual single-walled carbon nanotubes

Daniel F. Santavicca·Joel D. Chudow·Daniel E. Prober·Meninder S. Purewal·Philip Kim
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Abstract

We characterize the energy loss of the non-equilibrium electron system in individual metallic single-walled carbon nanotubes at low temperature. Using Johnson noise thermometry, we demonstrate that, for a nanotube with ohmic contacts, the dc resistance at finite bias current directly reflects the average electron temperature. This enables a straightforward determination of the thermal conductance associated with cooling of the nanotube electron system. In analyzing the temperature- and length-dependence of the thermal conductance, we consider contributions from acoustic phonon emission, optical phonon emission, and hot electron outdiffusion.

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Daniel F. Santavicca, Joel D. Chudow, Daniel E. Prober, Meninder S. Purewal, Philip Kim. 2010-10-04. Energy loss of the electron system in individual single-walled carbon nanotubes. https://doi.org/10.1021/nl1025002

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