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dc.contributor.authorZheng, Qing Bin
dc.contributor.authorGudarzi, Mahsen Moazzami
dc.contributor.authorWang, Shu Jun
dc.contributor.authorGeng, Yan
dc.contributor.authorLi, Zhigang
dc.contributor.authorKim, Jang-Kyo
dc.date.accessioned2017-07-18T23:55:24Z
dc.date.available2017-07-18T23:55:24Z
dc.date.issued2011
dc.identifier.issn1873-3891
dc.identifier.doi10.1016/j.carbon.2011.02.064
dc.identifier.urihttp://hdl.handle.net/10072/342099
dc.description.abstractNew thermal and chemical schemes, which include (i) a modified thermal treatment, (ii) acid treatment in a HNO3 bath and (iii) doping by immersing in a SOBr2 solution, are developed to treat graphene films to improve the electrical conductivity and transparency. It is shown that a longer thermal treatment at 1100 °C as well as additional acid and doping treatments reduce the sheet resistance by about 20–50% with improved transmittance. The final product has a sheet resistance of 1600 Ω/sq and a transparency of 82%, which is quite sufficient to replace the transparent conducting films made from indium tin oxide for many existing applications in photovoltaic cells and optoelectronics. The transmittance and sheet resistance measured after 3 months of exposure to air confirms the stability of the improved characteristics after the additional treatments.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom2905
dc.relation.ispartofpageto2916
dc.relation.ispartofissue9
dc.relation.ispartofjournalCarbon
dc.relation.ispartofvolume49
dc.subject.fieldofresearchMacromolecular and Materials Chemistry not elsewhere classified
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode030399
dc.subject.fieldofresearchcode02
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode09
dc.titleImproved electrical and optical characteristics of transparent graphene thin films produced by acid and doping treatments
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Shujun


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