Iodide-based glass with combination of high transparency and conductivity: A novel promising candidate for transparent microwave absorption and radar stealth
CHEMICAL ENGINEERING JOURNAL(2024)
Abstract
The rapid development of the electronics industry has sparked widespread interest in transparent microwave-absorbing materials. Herein, iodide-based transparent conductive glass was used as a candidate material for transparent microwave absorption. AgI-AgPO3-WO3 glasses with varying AgI content were synthesized employing a quench-melting method. Their structures, optical and electrical properties, microwave absorption performance, and radar cross section (RCS) reduction were thoroughly investigated. The 45AgI-45AgPO(3)-10WO(3) sample exhibited satisfactory microwave absorption, achieving a minimum reflection loss (RLmin) of - 47.18 dB, effective absorption bandwidth (EAB) of 1.97 GHz, and RCS reduction of 31.46 dB m(2) in the X band. This was attributed to the synergistic effects of dielectric and magnetic losses, and impedance matching and electromagnetic attenuation. It also manifested acceptable performance in the Ku band (RLmin = - 14.58 dB, EAB = 1.38 GHz, and RCS reduction = 13.37 dB m(2)), which was primarily attributed to dielectric loss and electromagnetic attenuation. The conductive glass exhibited an optical transmittance of similar to 80 % in the range of 500-2000 nm. In summary, this study highlights the potential use of transparent conductive glasses as transparent microwave-absorbing media for electromagnetic interference shielding applications in optical windows and domes, and stealth applications in high-performance optical cameras and optical detection device systems.
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Key words
Microwave-absorbing material,Transparent conductive glass,Impedance matching,Electromagnetic attenuation,RCS simulation,AgI-AgPO3-WO(3)glass system
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