dc.contributor.author | Sudeep, P.M. Vinayasree, S. Mohanan, P. Ajayan, P.M. Narayanan, T.N. Anantharaman, M.R.
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dc.date.accessioned |
2017-05-15T17:23:58Z
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dc.date.available |
2017-05-15T17:23:58Z
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dc.date.issued |
2015
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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.
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dc.identifier.uri | https://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.
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dc.language.iso |
eng
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dc.publisher |
AIP Publishing LLC
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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.
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dc.title |
Fluorinated graphene oxide for enhanced S and X-band microwave absorption
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dc.type |
Journal article
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dc.citation.journalTitle |
Applied Physics Letters
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dc.citation.volumeNumber |
106
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dc.citation.issueNumber |
22
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dc.type.dcmi |
Text
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dc.identifier.doi | http://dx.doi.org/10.1063/1.4922209 |
dc.type.publication |
publisher version
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dc.citation.articleNumber |
221603
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