Defect-engineered charge redistribution in CoNi/CNT/Carbon foam heterostructures: Synergistic polarization and conductivity modulation for effective microwave absorption

Key Points

• Microwave absorption is significantly enhanced by defect-engineered charge redistribution in heterostructures.
• Key performance improvement was noted with a maximum absorption level of over 99% across a wide frequency range.
• Assessment involving heterostructures of CoNi, carbon nanotubes, and carbon foam demonstrates effective conductivity modulation.
• These findings indicate the potential for improved materials in electromagnetic applications, specifically for microwave absorption.