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dc.contributor.authorRen, Lei
Zhang, Qi
Yao, Jun
Sun, Zhengzong
Kaneko, Ryosuke
Yan, Zheng
Nanot, Sébastien L.
Jin, Zhong
Kawayama, Iwao
Tonouchi, Masayoshi
Tour, James M.
Kono, Junichiro
dc.date.accessioned 2016-06-08T16:16:52Z
dc.date.available 2016-06-08T16:16:52Z
dc.date.issued 2012
dc.identifier.citation Ren, Lei, Zhang, Qi, Yao, Jun, et al.. "Terahertz and Infrared Spectroscopy of Gated Large-Area Graphene." Nano Letters, 12, no. 7 (2012) American Chemical Society: 3711-3715. http://dx.doi.org/10.1021/nl301496r.
dc.identifier.urihttps://hdl.handle.net/1911/90466
dc.description.abstract We 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.
dc.language.iso eng
dc.publisher American Chemical Society
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.title Terahertz and Infrared Spectroscopy of Gated Large-Area Graphene
dc.type Journal article
dc.contributor.funder U.S. Department of Energy
dc.contributor.funder National Science Foundation
dc.contributor.funder Welch Foundation
dc.contributor.funder JSPS Core-to-Core Program
dc.contributor.funder Office of Naval Research Multidisciplinary University Research Initiative
dc.contributor.funder Air Force Office of Scientific Research
dc.citation.journalTitle Nano Letters
dc.contributor.org Applied Physics Program
dc.subject.keywordgraphene
Fermi level
terahertz dynamics
infrared spectroscopy
dc.citation.volumeNumber 12
dc.citation.issueNumber 7
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1021/nl301496r
dc.identifier.pmid 22663563
dc.identifier.grantID DE-FG02-06ER46308 (U.S. Department of Energy)
dc.identifier.grantID OISE-0530220 (National Science Foundation)
dc.identifier.grantID C-1509 (Welch Foundation)
dc.identifier.grantID 00006766 (Office of Naval Research Multidisciplinary University Research Initiative)
dc.identifier.grantID N00014-09-1-1066 (Office of Naval Research Multidisciplinary University Research Initiative)
dc.identifier.grantID FA9550-09-1-0581 (Air Force Office of Scientific Research)
dc.type.publication post-print
dc.citation.firstpage 3711
dc.citation.lastpage 3715


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