Heterodimensional Structure Integrating Electromagnetic Functions and Hybrid Energy Storage to Drive Multifunctional Devices

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract Electronic devices are becoming portable, miniaturized, and high performance, more widely used in emerging complex fields. Electromagnetic functional materials with multiple functions that can be applied to scenarios urgently need developed. This research assembled a multifunctional magnetic heterodimensional structure through interface defect engineering, conceived an innovative hybrid energy storage device antenna. The exhibits excellent microwave absorption, electromagnetic interference (EMI) shielding properties. minimum reflection loss is −57.06 dB at 6.16 GHz, the optimal EMI effectiveness 74.08 18 GHz. At current densities of 0.5 3 A g −1 , discharge/charge specific capacities remain 836.64/820.48 401.4/401.7 mAh after 300 500 cycles, respectively. Hybrid convert into electrical for storage. antenna shows harvesting characteristic S, C, X, Ku multi‐bands. |S 11 | reach −65.6 tuned by adjusting dielectric substrate thickness. work will furnish new prospects design development scenarios.

Language: Английский

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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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Machine-learning assisted novel insulation layer stripping technology for upgrading the transparent EMI shielding materials

Nano Today, Journal Year: 2025, Volume and Issue: 61, P. 102660 - 102660

Published: Feb. 10, 2025

Language: Английский

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High-Temperature Stealth Across Multi-Infrared and Microwave Bands with Efficient Radiative Thermal Management

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: March 24, 2025

Abstract High-temperature stealth is vital for enhancing the concealment, survivability, and longevity of critical assets. However, achieving across multiple infrared bands—particularly in short-wave (SWIR) band—along with microwave efficient thermal management at high temperatures, remains a significant challenge. Here, we propose strategy that integrates an IR-selective emitter (Mo/Si multilayer films) metasurface (TiB 2 –Al O 3 –TiB ) to enable multi-infrared band stealth, encompassing mid-wave (MWIR), long-wave (LWIR), SWIR bands, (X-band) 700 °C, simultaneous radiative cooling non-atmospheric window (5–8 μm). At device exhibits low emissivity 0.38/0.44/0.60 MWIR/LWIR/SWIR reflection loss below − dB X-band (9.6–12 GHz), 0.82 5–8 μm range—corresponding power 9.57 kW m −2 . Moreover, under input 17.3 —equivalent aerodynamic heating Mach 2.2—the demonstrates temperature reduction 72.4 °C compared conventional low-emissivity molybdenum surface temperatures. This work provides comprehensive guidance on high-temperature design, far-reaching implications multispectral information processing extreme environments.

Language: Английский

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Enhanced mechanical and electromagnetic shielding performance of MXene/cellulose nanocrystals flexible film

Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102292 - 102292

Published: Jan. 1, 2025

Language: Английский

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Interfacial Confinement Derived High‐Strength MXene@Graphene Oxide Core‐Shell Fibers for Electromagnetic Wave Regulation, Thermochromic Alerts, and Visible Camouflage

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

Published: Feb. 13, 2025

Abstract Although electrically conductive Ti₃C₂T x MXene fibers are promising for wearable electronics, the poor inter‐sheet interactions and random stacking structure of sheets seriously hinder electron transport load transfer fibers. Herein, mechanically strong MXene@graphene oxide (GO) core‐shell fabricated with a coaxial wet‐spinning methodology electromagnetic wave regulation, thermochromic alerts, visible camouflage. During wet‐spinning, trace‐carboxylated GO in shell align readily because spatial confinement needle, while core progressively oriented flattened shell. The positively charged chitosan coagulating solution enhances interfacial between facilitates sheet′s orientation inside Consequently, highly aligned exhibit an ultrahigh tensile strength 613.7 MPa outstanding conductivity ≈7766 S cm −1 . Furthermore, fiber‐woven textiles not only offer excellent interference shielding performance but also achieve quantitative regulation transmission by adjusting angle double‐layered textiles. can combine coatings thermotherapy visual warnings,

Language: Английский

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Self-Cross-Linked Carbon-Nanofiber-Based Aerogels for Infrared Stealth under Extreme Conditions

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Language: Английский

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Dual-band dynamically compatible stealth: infrared modulation and visible camouflage based on carbon nanotubes

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179525 - 179525

Published: March 1, 2025

Language: Английский

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Spiderweb-structured Aerogels with High-efficiency Microwave Absorption and Multifunctionality

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110863 - 110863

Published: March 1, 2025

Language: Английский

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Simultaneous Manipulation of Multidimensional Heterojunctions and Dielectric Gene Engineering for Broadband Microwave Absorption

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Abstract Multidimensional heterogeneous interface construction and multicomponent dielectric gene optimization have emerged as viable strategies for the design of high‐performance microwave absorbing materials (MAMs) with broad effective absorption bandwidth (EAB). Herein, V 2 O 3 /VO/C@Ti C T X /TiO composites multidimensional heterostructures are prepared through electrostatic self‐assembly modified MIL‐88B(V) MXene followed by carbonization. A synchronous manipulation genes intensity built‐in electric field (BIEF) is realized tailoring carbonation temperature precursor. The electron transport properties at interfaces precisely modulated several heterojunctions BIEFs. Simultaneously, based on theoretical computational simulations verifications, it found that spontaneous BIEF generated in situ‐constructed can activate Mott–Schottky barrier, balancing fermi energy levels both sides enhancing polarization. Benefiting from modulation system, exhibited an RL –50.10 dB EAB value 6.16 GHz a fill ratio 20%. This work offers rational insights interfaces, ultimately aiding development stealth intended electronic countermeasures.

Language: Английский

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