Self-doped polymer-derived hierarchical porous carbon for broadband microwave absorption

Key Points

• Microwave absorption improved significantly in samples with hierarchical porous structures, demonstrating effective electromagnetic interference mitigation.
• Key metric showed over 90% absorption efficiency across a broad frequency range, enhancing material utility.
• Assessment using self-doping techniques on polymer-derived carbon highly improved its performance in microwave applications.
• Highlights the potential of these carbon materials for practical applications in shielding against electromagnetic interference.