Fluorinated graphene oxide for enhanced S and X-band microwave absorption

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dc.citation.articleNumber221603en_US
dc.citation.issueNumber22en_US
dc.citation.journalTitleApplied Physics Lettersen_US
dc.citation.volumeNumber106en_US
dc.contributor.authorSudeep, P.M.en_US
dc.contributor.authorVinayasree, S.en_US
dc.contributor.authorMohanan, P.en_US
dc.contributor.authorAjayan, P.M.en_US
dc.contributor.authorNarayanan, T.N.en_US
dc.contributor.authorAnantharaman, M.R.en_US
dc.date.accessioned2017-05-15T17:23:58Zen_US
dc.date.available2017-05-15T17:23:58Zen_US
dc.date.issued2015en_US
dc.description.abstractHere we report the microwave absorbing properties of three graphene derivatives, namely, graphene oxide (GO), fluorinated GO (FGO, containing 5.6 at. % Fluorine (F)), and highly FGO (HFGO, containing 23 at. % F). FGO is known to be exhibiting improved electrochemical and electronic properties when compared to GO. Fluorination modifies the dielectric properties of GO and hence thought of as a good microwave absorber. The dielectric permittivities of GO, FGO, and HFGO were estimated in the S (2 GHz to 4 GHz) and X (8 GHz to 12 GHz) bands by employing cavity perturbation technique. For this, suspensions containing GO/FGO/HFGO were made in N-Methyl Pyrrolidone (NMP) and were subjected to cavity perturbation. The reflection loss was then estimated and it was found that −37 dB (at 3.2 GHz with 6.5 mm thickness) and −31 dB (at 2.8 GHz with 6 mm thickness) in the S band and a reflection loss of −18 dB (at 8.4 GHz with 2.5 mm thickness) and −10 dB (at 11 GHz with 2 mm thickness) in the X band were achieved for 0.01 wt. % of FGO and HFGO in NMP, respectively, suggesting that these materials can serve as efficient microwave absorbers even at low concentrations.en_US
dc.identifier.citationSudeep, P.M., Vinayasree, S., Mohanan, P., et al.. "Fluorinated graphene oxide for enhanced S and X-band microwave absorption." <i>Applied Physics Letters,</i> 106, no. 22 (2015) AIP Publishing LLC: http://dx.doi.org/10.1063/1.4922209.en_US
dc.identifier.doihttp://dx.doi.org/10.1063/1.4922209en_US
dc.identifier.urihttps://hdl.handle.net/1911/94263en_US
dc.language.isoengen_US
dc.publisherAIP Publishing LLCen_US
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.en_US
dc.titleFluorinated graphene oxide for enhanced S and X-band microwave absorptionen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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