A Comprehensive Review on the Characterization of Nanomaterials for the Suppression of Electromagnetic Interference Across Diverse Frequency bands

ABSTRACT

The progression of cutting-edge materials for effectively safeguarding against electromagnetic radiation has emerged as an urgent priority within the scientific community. This study evaluates the present research status of EMI shielding materials based on polymer nanocomposites. The review encompasses an exploration of the principles behind EMI shielding, followed by a concise narration of the most widely utilized synthesis techniques and materials for nanocomposites designed for EMI shielding. Special attention is given in unraveling the correlation between the nanomaterials of these composites, the type of fillers employed, and their electromagnetic interference shielding efficiency (EMI SE). In addition methods, techniques and the mechanism of shielding are also reviewed. A detailed discourse on the gaps in various fields where EMI shielding materials hold potential applications is presented, and prospective avenues for research are suggested to overcome the current technological challenges.

GRAPHICAL ABSTRACT

KEYWORDS:

• Composites
• EMI
• shielding effectiveness
• shielding materials

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Sujatha Basa Reddy

Dr. Sujatha B. Reddy is a Professor in the Electronics and Communication Department at MSRIT. She received her B.E. in 1992 and M.E. in 1995 from Bangalore University, and her Ph.D. from Tumkur University. With 30 years of teaching experience. Sujatha has been involved in numerous government-funded projects. Her research interests include material science, nanomaterials, EMI shielding, conductivity studies, antenna theory design, and microwave communications.

Bharath V

Bharath. V received the B. Tech degree in Electronics and Communications engineering from VTU and M.Tech degree in Digital Electronics and Communication engineering from Ramaiah Institute of Technology, Bangalore, India. He is working as a Researcher with the Centre for advanced Materials and Technology (CAMT), Ramaiah Institute of Technology, Bangalore, India. His areas of interest include nanotechnology, EMI shielding, nanomaterials, composites, polymer composites, material sciences and conductivity studies.