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dc.contributor.authorSudeep, P.M.
Vinayasree, S.
Mohanan, P.
Ajayan, P.M.
Narayanan, T.N.
Anantharaman, M.R.
dc.date.accessioned 2017-05-15T17:23:58Z
dc.date.available 2017-05-15T17:23:58Z
dc.date.issued 2015
dc.identifier.citation Sudeep, P.M., Vinayasree, S., Mohanan, P., et al.. "Fluorinated graphene oxide for enhanced S and X-band microwave absorption." Applied Physics Letters, 106, no. 22 (2015) AIP Publishing LLC: http://dx.doi.org/10.1063/1.4922209.
dc.identifier.urihttps://hdl.handle.net/1911/94263
dc.description.abstract Here 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.
dc.language.iso eng
dc.publisher AIP Publishing LLC
dc.rights Article 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.
dc.title Fluorinated graphene oxide for enhanced S and X-band microwave absorption
dc.type Journal article
dc.citation.journalTitle Applied Physics Letters
dc.citation.volumeNumber 106
dc.citation.issueNumber 22
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1063/1.4922209
dc.type.publication publisher version
dc.citation.articleNumber 221603


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