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Issue 38, 2015
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Temperature dependent microwave absorption of ultrathin graphene composites

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Abstract

Ultrathin, lightweight graphene composites exhibit high-efficiency microwave absorption at elevated temperatures as well as thermal-stability permittivity. The minimum reflection loss reaches −42 dB and the widest bandwidth covers the entire X-band (−10 dB). More significantly, the composites possess one high-efficiency absorption belt with a value ≤−15 dB, as well as two ‘islands’ of reflection loss of ≤−17 dB and −30 dB. These excellent properties arise from the synergistic effect of polarization and conductivity. Our finding demonstrates that ultrathin graphene is a promising microwave absorber for microwave attenuation devices, information security and electromagnetic pollution defense.

Graphical abstract: Temperature dependent microwave absorption of ultrathin graphene composites

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Publication details

The article was received on 19 Jul 2015, accepted on 03 Sep 2015 and first published on 03 Sep 2015


Article type: Paper
DOI: 10.1039/C5TC02185E
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J. Mater. Chem. C, 2015,3, 10017-10022

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    Temperature dependent microwave absorption of ultrathin graphene composites

    W. Cao, X. Wang, J. Yuan, W. Wang and M. Cao, J. Mater. Chem. C, 2015, 3, 10017
    DOI: 10.1039/C5TC02185E

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