Abstract: In this work the electromagnetic properties of AgNi/MWCNT-PMMA composites, obtained by coagulation precipitation of polymethyl methacrylate and multi-walled carbon nanotubes modified with AgNi nanoparticles, were observed in terahertz frequency range (0.1–1 Thz). That composites are perfect candidates as EMI shielding materials in microwave range, so their investigation in THz range is promising for various shielding applications in this range. It was shown, that modification of MWCNTs with AgNi nanoparticles led to a decrease in percolation threshold and an increase in conductivity and shielding effectiveness in broadband frequency range. At the same time, the real part of permittivity is decreasing from 8 to 5 while the conductivity is increasing from 35 to 135 Sm/m with increasing frequency from 0.2 to 1 THz. The most effective filler is 100 % Ag, due to its higher conductivity compared to Ni nanoparticles. Thus, AgNi/MWCNT-PMMA are promising for THz applications, in particular, as EMI shielding materials. Sup

Cite: Misiyuk P.Y. , Gorokhov G.V. , Golubtsov G.V. , Kazakova M.A.
Electromagnetic Properties of AgNi/MWCNT-PMMA Composites in THz Range
In compilation XXII International conference “Foundations & advances in nonlinear science” and VII International symposium “Advances in nonlinear photonics”.Programme & Book of Abstracts XXII international conference and VII international Symposium. – Belarusian State University., 2024. – C.34. РИНЦ

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