Nanocomposite thin films improved shielding effectiveness in electromagnetic interference, suggesting enhanced material performance.
Polycarbonate (PC)-based nanocomposites reinforced with cerium nickelate (CeNiO 3 ) and graphene nanoplatelets (GNP) were synthesized for enhanced electromagnetic interference (EMI) shielding applications. Morphological analysis through SEM and EDX confirmed uniform dispersion and elemental composition of the nanofillers. The structural and chemical interactions were validated using XRD and FTIR, indicating successful integration of CeNiO 3 and GNP into the polymer matrix. The AC conductivity, dielectric loss tangent, and magnetic loss tangent increased with higher filler loading, promoting effective energy dissipation. Among all compositions, the PC/4wt% CeNiO 3 @ 6wt% GNP nanocomposite exhibited the highest shielding effectiveness of 36.32 dB in the X-band (8.2–12.4 GHz), attributed to a synergistic balance between reflection and absorption mechanisms. The results of this study highlight the capabilities of CeNiO 3 -GNP hybrid fillers in producing high-performance materials for electromagnetic interference shielding in cutting-edge electronic applications.
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M et al. (2025) studied this question.
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