Multiple Charge Carriers Manipulation Toward Semiconductive Ceramic Nanocomposites for Corrosion‐Resistant Electromagnetic Wave Absorption

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract The modulation of transport properties in ceramic‐based semiconductors can be used to optimize the electromagnetic response mechanism and performance. A semiconductor ceramic foam interlayer wall (SCFW) is designed by a physical vapor deposition method. structural SCFW composed semiconductor‐insulator‐semiconductor layers, incorporating composite system SiC, Al 4.8 Si 1.2 O 9.6 , 2 3 . Moreover, hierarchical network structure controlled pyrolysis‐deposition kinetic process. Electrons holes are transported through heterojunctions between SiC achieving effective charge relaxation. matrix provides lightweight (density 0.967 g cm −3 ), while determines excellent wave (EMW) absorption performance SCFW, with an bandwidth up 14.8 GHz under (minimum reflection loss RL min = −50.6 dB). has been proven exhibit corrosion resistance thermal insulation properties, conductivity 0.025 W m −1 K This study valuable insights into design dielectric property optimization nanocomposites, which leads strong polarization loss, opening new avenues for application EMW absorbers, ceramics.

Language: Английский

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Multifunctional conductive organohydrogel with environmental tolerance for flexible wearable devices

Matter, Journal Year: 2024, Volume and Issue: 7(10), P. 3240 - 3242

Published: Oct. 1, 2024

Language: Английский

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Wearable Hydrogels for Personal Protection Applications

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

As the Internet of Things and artificial intelligence technologies have advanced, wearable technology has attracted significant attention from academia industry. Hydrogel already received much as an emerging candidate material for devices due to its unique 3D network structure, excellent biocompatibility, soft stretchability. It is aimed here provide a comprehensive overview development hydrogels applications. Here, synthetic methods currently employed in are reviewed first, including physical crosslinking, chemical multiple crosslinking. Then, strategies optimizing performance summarized perspectives mechanical properties, electrical thermal other characteristics such self-healing, self-adhesion. The final section discusses latest advances application personal protection, current shortcomings challenges. it innovative insights further this field by summarizing research hotspots cutting-edge issues hydrogels.

Language: Английский

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Preparing efficient self-healing polyimide coating for enhancing stability of electromagnetic interference shielding film

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177045 - 177045

Published: Oct. 1, 2024

Language: Английский

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Enhanced Stability of Microwave Absorption in Island-Bridge Structured Organohydrogels

Optics Letters, Journal Year: 2024, Volume and Issue: 50(2), P. 361 - 361

Published: Dec. 2, 2024

Stretchable microwave absorbers (SMAs) are vital for flexible electronics. Traditional SMAs display unstable tensile properties resulting from inconsistencies between the constrained conductive layer and dielectric layer. This study introduces an organohydrogel-based stretchable absorber (OSMA) that incorporates organohydrogel within island-bridge structure. Leveraging standing wave field concentration effects, along with strain dissipation, OMSA achieves 90% absorption in 5–18 GHz range maintains stable broadband under a 30% uniaxial stretch, exhibiting tunable angular performance transverse electric/magnetic (TE/TM) polarization. approach offers versatile, customizable, cost-effective solution SMAs.

Language: Английский

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