Terahertz and Infrared Spectroscopy of Gated Large-Area Graphene

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dc.citation.firstpage3711en_US
dc.citation.issueNumber7en_US
dc.citation.journalTitleNano Lettersen_US
dc.citation.lastpage3715en_US
dc.citation.volumeNumber12en_US
dc.contributor.authorRen, Leien_US
dc.contributor.authorZhang, Qien_US
dc.contributor.authorYao, Junen_US
dc.contributor.authorSun, Zhengzongen_US
dc.contributor.authorKaneko, Ryosukeen_US
dc.contributor.authorYan, Zhengen_US
dc.contributor.authorNanot, Sébastien L.en_US
dc.contributor.authorJin, Zhongen_US
dc.contributor.authorKawayama, Iwaoen_US
dc.contributor.authorTonouchi, Masayoshien_US
dc.contributor.authorTour, James M.en_US
dc.contributor.authorKono, Junichiroen_US
dc.contributor.orgBioengineeringen_US
dc.contributor.orgChemistryen_US
dc.contributor.orgComputer Scienceen_US
dc.contributor.orgMaterials Science and Nanoengineeringen_US
dc.contributor.orgElectrical and Computer Engineeringen_US
dc.contributor.orgApplied Physicsen_US
dc.date.accessioned2016-06-08T16:16:52Zen_US
dc.date.available2016-06-08T16:16:52Zen_US
dc.date.issued2012en_US
dc.description.abstractWe have fabricated a centimeter-size single-layer graphene device with a gate electrode, which can modulate the transmission of terahertz and infrared waves. Using time-domain terahertz spectroscopy and Fourier-transform infrared spectroscopy in a wide frequency range (10–10 000 cm–1), we measured the dynamic conductivity change induced by electrical gating and thermal annealing. Both methods were able to effectively tune the Fermi energy, EF, which in turn modified the Drude-like intraband absorption in the terahertz as well as the “2EF onset” for interband absorption in the mid-infrared. These results not only provide fundamental insight into the electromagnetic response of Dirac fermions in graphene but also demonstrate the key functionalities of large-area graphene devices that are desired for components in terahertz and infrared optoelectronics.en_US
dc.identifier.citationRen, Lei, Zhang, Qi, Yao, Jun, et al.. "Terahertz and Infrared Spectroscopy of Gated Large-Area Graphene." <i>Nano Letters,</i> 12, no. 7 (2012) American Chemical Society: 3711-3715. http://dx.doi.org/10.1021/nl301496r.en_US
dc.identifier.doihttp://dx.doi.org/10.1021/nl301496ren_US
dc.identifier.urihttps://hdl.handle.net/1911/90466en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.en_US
dc.subject.keywordgrapheneen_US
dc.subject.keywordFermi levelen_US
dc.subject.keywordterahertz dynamicsen_US
dc.subject.keywordinfrared spectroscopyen_US
dc.titleTerahertz and Infrared Spectroscopy of Gated Large-Area Grapheneen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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