Polycarbonate Nanocomposite Thin Films for EMI Shielding: Influence of CeNiO3 and Graphene Nanoplatelets

Polycarbonate Nanocomposite Thin Films for EMI Shielding: Influence of CeNiO3 and Graphene Nanoplatelets | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Polycarbonate Nanocomposite Thin Films for EMI Shielding: Influence of CeNiO 3 and Graphene Nanoplatelets Supreetha M, Veena MG, Madhukar B S, Pawandeep Kaur, A.P. Gnana Prakash This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7363795/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 14 Nov, 2025 Read the published version in Journal of Materials Science: Materials in Engineering → Version 1 posted You are reading this latest preprint version Abstract Polycarbonate (PC) based nanocomposites reinforced with Cerium Nickelate (CeNiO3) 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 CeNiO3 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% CeNiO3@ 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 CeNiO3-GNP hybrid fillers in producing high-performance materials for electromagnetic interference shielding in cutting-edge electronic applications. polycarbonate Graphene nanoplatelets (GNP) EMI Shielding effectiveness X-band Hybrid nanofillers Full Text Cite Share Download PDF Status: Published Journal Publication published 14 Nov, 2025 Read the published version in Journal of Materials Science: Materials in Engineering → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7363795","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":501215401,"identity":"593e70f8-be9d-464c-92a9-aa7ba25cfbee","order_by":0,"name":"Supreetha M","email":"","orcid":"","institution":"JSS Science and Technology University","correspondingAuthor":false,"prefix":"","firstName":"Supreetha","middleName":"","lastName":"M","suffix":""},{"id":501215402,"identity":"40265a20-c463-4726-8d30-8ed6599314f5","order_by":1,"name":"Veena MG","email":"","orcid":"","institution":"JSS Science and Technology University","correspondingAuthor":false,"prefix":"","firstName":"Veena","middleName":"","lastName":"MG","suffix":""},{"id":501215403,"identity":"8f860607-c423-4dc7-9e2c-ebe8e4181592","order_by":2,"name":"Madhukar B S","email":"","orcid":"","institution":"JSS Science and Technology University","correspondingAuthor":false,"prefix":"","firstName":"Madhukar","middleName":"B","lastName":"S","suffix":""},{"id":501215404,"identity":"4e7a919c-807b-4f29-b2ea-138edea7cf93","order_by":3,"name":"Pawandeep Kaur","email":"","orcid":"","institution":"Guru Nanak Dev University","correspondingAuthor":false,"prefix":"","firstName":"Pawandeep","middleName":"","lastName":"Kaur","suffix":""},{"id":501215405,"identity":"98896b77-59fc-417c-9666-9f7e51b739d0","order_by":4,"name":"A.P. 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