Boosting electronic transport in carbon nanotubes by isotopic disorder

Boosting electronic transport in carbon nanotubes by isotopic disorder

The current/voltage curve of metallic carbon nanotubes (CNTs) displays at high bias a sudden increase of the resistivity due to the scattering of electrons with phonons having an anomalously-high population (hot phonons). Here, we show that it is possible to improve the electrical performances of me...

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Veröffentlicht in:arXiv.org 2009-05
Hauptverfasser: Vandecasteele, Niels, Lazzeri, Michele, Mauri, Francesco
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Sprache:eng
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Bias
Carbon nanotubes
Electron transport
Nanotubes
Phonons
Physics - Materials Science
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Lazzeri, Michele
Mauri, Francesco
description The current/voltage curve of metallic carbon nanotubes (CNTs) displays at high bias a sudden increase of the resistivity due to the scattering of electrons with phonons having an anomalously-high population (hot phonons). Here, we show that it is possible to improve the electrical performances of metallic CNTs by C13 isotope enrichment. In fact, isotopic disorder creates additional channels for the hot-phonon deexcitation, reduces their population and, thus, the nanotube high-bias differential-resistance. This is an extraordinary case where disorder improves the electronic transport.
doi_str_mv 10.48550/arxiv.0905.3034
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subjects Bias
Carbon nanotubes
Electron transport
Nanotubes
Phonons
Physics - Materials Science
title Boosting electronic transport in carbon nanotubes by isotopic disorder
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