Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/93781
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dc.contributor.authorAjayan, Pulickel M.en
dc.contributor.authorXiao, Nien
dc.contributor.authorDong, Xiaochenen
dc.contributor.authorSong, Lien
dc.contributor.authorLiu, Dayongen
dc.contributor.authorTay, Yee Yanen
dc.contributor.authorWu, Shixinen
dc.contributor.authorLi, Lain-Jongen
dc.contributor.authorZhao, Yangen
dc.contributor.authorYu, Tingen
dc.contributor.authorZhang, Huaen
dc.contributor.authorHuang, Weien
dc.contributor.authorHng, Huey Hoonen
dc.contributor.authorYan, Qingyuen
dc.date.accessioned2012-01-06T06:54:08Zen
dc.date.accessioned2019-12-06T18:45:28Z-
dc.date.available2012-01-06T06:54:08Zen
dc.date.available2019-12-06T18:45:28Z-
dc.date.copyright2011en
dc.date.issued2011en
dc.identifier.citationXiao, N., Dong, X., Song, L., Liu, D., Tay, Y. Y., Wu, S. et al. (2011). Enhanced Thermopower of Graphene Films with Oxygen Plasma Treatment. ACS Nano, 5 (4), 2749–2755.en
dc.identifier.urihttps://hdl.handle.net/10356/93781-
dc.description.abstractIn this work, we show that the maximum thermopower of few layers graphene (FLG) films could be greatly enhanced up to ∼700 μV/K after oxygen plasma treatment. The electrical conductivities of these plasma treated FLG films remain high, for example, ∼104 S/m, which results in power factors as high as ∼4.5 x 10-3 W K-2 m-1. In comparison, the pristine FLG films show a maximum thermopower of ∼80 μV/K with an electrical conductivity of ∼5 x 104 S/m. The proposed mechanism is due to generation of local disordered carbon that opens the band gap. Measured thermopowers of single-layer graphene (SLG) films and reduced graphene oxide (rGO) films were in the range of -40 to 50 and -10 to 20 μV/K, respectively. However, such oxygen plasma treatment is not suitable for SLG and rGO films. The SLG films were easily destroyed during the treatment while the electrical conductivity of rGO films is too low, which makes FLG films unique for possible TE applications.en
dc.format.extent17 p.en
dc.language.isoenen
dc.relation.ispartofseriesACS nanoen
dc.rights© 2011 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by ACS Nano, American Chemical Society.  It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.  The published version is available at: [DOI: http://dx.doi.org/10.1021/nn2001849 ]en
dc.subjectDRNTU::Engineering::Materials::Nanostructured materialsen
dc.subjectDRNTU::Engineering::Materials::Plasma treatmenten
dc.titleEnhanced thermopower of graphene films with oxygen plasma treatmenten
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.identifier.doi10.1021/nn2001849en
dc.description.versionAccepted versionen
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