Magnetotransport in type-enriched single-wall carbon nanotube networks

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dc.citation.articleNumber116001en_US
dc.citation.issueNumber11en_US
dc.citation.journalTitlePhysical Review Materialsen_US
dc.citation.volumeNumber2en_US
dc.contributor.authorWang, X.en_US
dc.contributor.authorGao, W.en_US
dc.contributor.authorLi, X.en_US
dc.contributor.authorZhang, Q.en_US
dc.contributor.authorNanot, S.en_US
dc.contributor.authorHároz, E.H.en_US
dc.contributor.authorKono, J.en_US
dc.contributor.authorRice, W.D.en_US
dc.date.accessioned2019-01-08T15:37:43Zen_US
dc.date.available2019-01-08T15:37:43Zen_US
dc.date.issued2018en_US
dc.description.abstractSingle-wall carbon nanotubes (SWCNTs) exhibit a wide range of physical phenomena depending on their chirality. Nanotube networks typically contain a broad mixture of chiralities, which prevents an in-depth understanding of SWCNT ensemble properties. In particular, electronic-type mixing (the simultaneous presence of semiconductor and metallic nanotubes) in SWCNT networks remains the single largest hurdle to developing a comprehensive view of ensemble nanotube electrical transport, a critical step toward their use in optoelectronics. Here, we systematically study temperature-dependent magnetoconductivity (MC) in networks of highly enriched semiconductor and metal SWCNT films. In the semiconductor-enriched network, we observe two-dimensional variable-range hopping conduction from 5 to 290 K. Low-temperature MC measurements reveal a large, negative MC from which we determine the wave-function localization length and Fermi energy density of states. In contrast, the metal-enriched film exhibits positive MC that increases with decreasing temperature, a behavior attributed to two-dimensional weak localization. Using this model, we determine the details of the carrier phase coherence and fit the temperature-dependent conductivity. These extensive measurements on type-enriched SWCNT networks provide insights that pave the way for the use of SWCNTs in solid-state devices.en_US
dc.identifier.citationWang, X., Gao, W., Li, X., et al.. "Magnetotransport in type-enriched single-wall carbon nanotube networks." <i>Physical Review Materials,</i> 2, no. 11 (2018) American Physical Society: https://doi.org/10.1103/PhysRevMaterials.2.116001.en_US
dc.identifier.digitalPhysRevMaterials.2.116001en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevMaterials.2.116001en_US
dc.identifier.urihttps://hdl.handle.net/1911/104976en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleMagnetotransport in type-enriched single-wall carbon nanotube networksen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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