Hollow ZnO/C Nanospheres with Defect Engineering for Enhanced Dielectric Loss and Broadband Electromagnetic Wave Absorption

Key Points

• The aim is to optimize dielectric loss and impedance matching for better electromagnetic wave absorption.
• Synthesis of ZnO-doped carbon hollow nanospheres with hierarchical porosity
• Characterization of dielectric properties and impedance matching
• Evaluation of electromagnetic wave absorption performance
• ZnO/C nanospheres exhibit enhanced dielectric loss compared to traditional materials
• Improved impedance matching contributes to broader electromagnetic wave absorption
• Demonstrated effective performance across a range of frequencies