Universal ac conduction in large area atomic layers of CVD-grown MoS2

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dc.citation.firstpage125422en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber89en_US
dc.contributor.authorGhosh, S.en_US
dc.contributor.authorNajmaei, S.en_US
dc.contributor.authorKar, S.en_US
dc.contributor.authorVajtai, R.en_US
dc.contributor.authorLou, J.en_US
dc.contributor.authorPradhan, N.R.en_US
dc.contributor.authorBalicas, L.en_US
dc.contributor.authorAjayan, P.M.en_US
dc.contributor.authorTalapatra, S.en_US
dc.date.accessioned2014-04-14T20:56:35Z
dc.date.available2014-04-14T20:56:35Z
dc.date.issued2014en_US
dc.description.abstractHere, we report on the ac conductivity [σ’(ω); 10 mHz < ω < 0.1 MHz] measurements performed on atomically thin, two-dimensional layers of MoS2 grown by chemical vapor deposition (CVD). Σ’(ω) is observed to display a “universal” power law, i.e., σ’(ω) ∼ ωs measured within a broad range of temperatures, 10 K< T <340 K. The temperature dependence of ‘‘s” indicates that the dominant ac transport conduction mechanism in CVD-grown MoS2 is due to electron hopping through a quantum mechanical tunneling process. The ac conductivity also displays scaling behavior, which leads to the collapse of the ac conductivity curves obtained at various temperatures into a single master curve. These findings establish a basis for our understanding of the transport mechanism in atomically thin, CVD-grown MoS2 layers.en_US
dc.identifier.citationGhosh, S., Najmaei, S., Kar, S., et al.. "Universal ac conduction in large area atomic layers of CVD-grown MoS2." <i>Physical Review B,</i> 89, (2014) American Physical Society: 125422. http://dx.doi.org/10.1103/PhysRevB.89.125422.
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.89.125422en_US
dc.identifier.urihttps://hdl.handle.net/1911/75895
dc.language.isoengen_US
dc.publisherAmerican Physical Society
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.
dc.titleUniversal ac conduction in large area atomic layers of CVD-grown MoS2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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