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Updated: Sep 11, 2025

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A Perspective on High-Entropy Oxides as Potential Electromagnetic Wave Absorbers.

Peng Gao1, Li-Hong Gao1, Zhuang Ma1

  • 1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.

Advanced Materials (Deerfield Beach, Fla.)
|August 11, 2025
PubMed
Summary

High-entropy oxides (HEOs) show great promise for electromagnetic wave absorption (EMA) due to their tunable properties and flexible composition. This research clarifies their advantages and future development for advanced EMA applications.

Keywords:
electromagnetic propertyelectromagnetic responseelectromagnetic wave absorptionhigh‐entropy oxides

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Growing concerns about electromagnetic radiation impact on health and electronics necessitate advanced electromagnetic wave absorption (EMA) materials.
  • High-entropy oxides (HEOs), first reported in 2015, have emerged as a promising class of materials for EMA due to their unique properties.

Purpose of the Study:

  • To systematically clarify the advantages of HEOs for EMA applications.
  • To provide a forward-looking perspective on the future development of HEOs in the field of EMA.

Main Methods:

  • Analysis of intrinsic properties of high-entropy systems.
  • Evaluation of crystal structure, compositional design, and synthesis strategies for HEOs.
  • Identification of key future development points for HEOs in EMA.

Main Results:

  • HEOs offer remarkable tunability and compositional flexibility, making them highly suitable for EMA.
  • Key advantages are linked to intrinsic high-entropy properties, crystal structure, composition, and synthesis.
  • Future development directions include dielectric genes, computational methods, integration, microstructure, and concept expansion.

Conclusions:

  • HEOs represent a significant advancement in EMA materials.
  • This work offers theoretical insights and technological references for high-performance HEO research in EMA.
  • Connecting the HEO family with EMA functionality is crucial for future progress.