The nanocomposites of N-doped graphene oxide decorated with La-doped Zn-Cu-Ni ferrite with lightweight and excellent absorption-dominant electromagnetic interference shielding performance

Mohammad Rostami*, Samaneh Maghami, Vahid Vatanpour, Hossein Nikmanesh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

With the rapid development of telecommunications and microwave technologies and the introduction of these technologies into human life, the need to obtain advanced materials to reduce the effects of these waves in specific and sensitive areas has been highly considered. Here, we have investigated the structural, morphological, magnetic, and electromagnetic interference (EMI) shielding properties of N-doped reduced graphene oxide (NRGO) decorated with La-doped Zn-Cu-Ni ferrite nanocomposite using XRD, FESEM, TEM, HRTEM, VSM, and vector network analyzer (VNA) tests. The hydrothermal method was used to prepare nanocomposites, and the graphene’s atomic structure remained intact during the synthesis process. The nanocomposites are soft magnetic materials, and NRGO can be employed to optimize the magnetic properties. Some types of nanocomposites are approved to have unique EMI shielding properties, where the shielding effectiveness is above 20dB on almost the entire range of 2–18 GHz with a thickness of just 2 mm. The scientific origin of all changes in electrical and magnetic properties has been comprehensively investigated. Most of the shielding effectiveness comes from absorption. Therefore, the nanocomposites are lightweight and excellent absorption-dominant EMI shielding materials that can reduce the energy of electromagnetic waves by 99% over the wide range of 2–18 GHz.

Original languageEnglish
Article number882
JournalJournal of Materials Science: Materials in Electronics
Volume34
Issue number10
DOIs
Publication statusPublished - Apr 2023

Bibliographical note

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© 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

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