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Заглавие документа: Electromagnetic Properties of Graphene-like Films in Ka-Band
Авторы: Voronovich, S.
Paddubskaya, A.
Batrakov, K.
Kuzhir, P.
Maksimenko, S.
Kaplas, T.
Svirko, Yu.
Дата публикации: 24-июн-2014
Аннотация: We studied electromagnetic properties of pyrolytic carbon (PyC) films with thicknesses from 9 nm to 110 nm. The PyC films consisted of randomly oriented and intertwined graphene flakes with a typical size of a few nanometers were synthesized by chemical vapor deposition (CVD) at 1100 °C on a quartz substrate. The reflectance and transmittance of these films in Ka-band, 26–37 GHz, were studied both experimentally and theoretically. The discovered remarkably high absorption loss of up to 50% of incident power, along with chemical stability, makes PyC films attractive for electromagnetic (EM) interference shielding in space and airspace communication systems, as well as in portable electronic devices occupying this frequency slot. Since, in practical applications, the PyC film should be employed for coating of dielectric surfaces, two important issues to be addressed are: (i) which side (front or back) of the substrate should be covered to ensure maximum absorption losses; and (ii) the frequency dependence of absorbance/transmittance/reflectance of binary PyC/quartz structures in the Ka-band.
Доп. сведения: Citation: Appl. Sci. 2014, 4, 255-264; doi:10.3390/app4020255
URI документа: http://elib.bsu.by/handle/123456789/98583
Регистрационный номер: doi:10.3390/app4020255
Располагается в коллекциях:Статьи НИУ «Институт ядерных проблем»

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