Effect of graphene grains size on the microwave electromagnetic shielding effectiveness of graphene/polymer multilayers

Polina Kuzhir, Alesia Paddubskaya, N. Volynets, K. Batrakov, Sergey Maksimenko, Elena Golubeva, Gintaras Valusis, T. Kaplas, Nicolas Reckinger, Michaël Lobet, Philippe Lambin

    Research output: Contribution to journalArticlepeer-review

    Abstract

    © 2017 Society of Photo-Optical Instrumentation Engineers (SPIE). The influence of chemical vapor deposition (CVD) graphene grain size on the electromagnetic (EM) shielding performance of graphene/polymethyl methacrylate (PMMA) multilayers in K a -band was studied both experimentally and theoretically. We found that increasing the average graphene grain size from 20 to 400 μm does not change the EM properties of heterostructures consisting of graphene layers sandwiched between submicron thick PMMA spacers. The independence of EM interference shielding effectiveness on the graphene grain size between 20 and 400 μm allows one to use cheaper (or more convenient regimes of CVD) graphene samples with low crystallinity and small grain size in the development of new graphenebased passive EM devices operated at high frequencies.
    Original languageEnglish
    Article number032511
    Number of pages8
    JournalJournal of Nanophotonics
    Volume11
    Issue number3
    DOIs
    Publication statusPublished - 10 Apr 2017

    Keywords

    • chemical vapor deposition graphene
    • electromagnetic shielding
    • graphene grain size
    • heterostructure
    • microwaves

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