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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Gold nanoparticle-modified single-walled carbon nanotube terahertz metasurface for ultrasensitive sensing of trace proteins

Talanta, Journal Year: 2025, Volume and Issue: 286, P. 127549 - 127549

Published: Jan. 6, 2025

Language: Английский

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Ultra-broadband terahertz polarization converter based on flexible metamaterial

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(12)

Published: March 1, 2025

Polarization is one of the basic properties electromagnetic (EM) waves, and polarization conversion essential in many terahertz (THz) applications, including communications sensitive measurements. Due to limitations materials process, existing THz converters generally have disadvantages narrow operating frequency band non-flexibility. We experimentally demonstrate a flexible ultra-broadband converter reflection. It can efficiently convert linearly polarized wave its orthogonal counterpart broadband regime. The device consists three layers: lower metal film, middle dielectric layer, upper resonance structure array. unit cell four-open-ring formed by subtracting two bars from ring. position opening diagonal direction 45° right corner left structure. simulated using full EM simulation software fabricated surface micromachining process. test experiment completed THz-TDS spectrometer results show that ratio more than 0.8 an regime 1.45 2.67 THz. This mainly caused magnetic waves. More importantly, convertible be tailored for practical applications across spectrum.

Language: Английский

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Hyperband Synergistic Metadevices

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(28)

Published: Aug. 9, 2024

Abstract Recent advances in metadevices, featuring complex subwavelength metastructures, have dramatically transformed the control and manipulation of electromagnetic waves. However, inherently narrow operational bandwidth these devices, stemming from their wavelength‐specific meta‐atoms, restricts application rapidly advancing fields such as Internet Things advanced intelligent systems. Here, a novel hyperband synergistic metadevice is introduced, realized through comprehensive multi‐scale meta‐atom architecture. The complementary metal‐oxide‐semiconductor (CMOS)‐compatible prototype integrates distinct properties double‐walled carbon nanotubes with interlayer intralayer coupling mechanisms, coherently combining nanoscale, microscale, macroscale meta‐atoms. This thus adept at operating across wide spectrum, spanning centimeter‐wavelength microwave band to hundred nanometer‐wavelength visible infrared optical band. Significantly, this singular device synergistically delivers three critical functionalities: selective absorption, efficient terahertz beam steering, enhanced transparency. These result signifies breakthrough engineering, leading compact, versatile, platforms.

Language: Английский

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Specific recognition of L-threonine by a terahertz metasurfaces biosensor based on fingerprint peaks

Optics Express, Journal Year: 2024, Volume and Issue: 32(20), P. 34764 - 34764

Published: Sept. 2, 2024

Arbitrarily designed resonant-based metasurfaces are particularly attractive and present a unique platform for biosensing applications owing to their ability confine light nanoscale regions spectral selectivity. In this study, we experimentally demonstrate metasurface sensor based on terahertz fingerprint spectroscopy that enables the specific recognition of trace samples. The results simulations experiments show detects glycine, L-arginine, L-threonine, respectively, with different resonance coupling. frequency shift peak was largest when matched sample, maximum 123 GHz detecting L-threonine. Therefore, combining peaks spectrum sample can achieve sample. This study provides new ideas samples using sensors in biomedicine, food safety, other fields.

Language: Английский

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Efficiency Comparison of Amide Solvents for Dispersing of Carboxylated Single-Wall Carbon Nanotubes

Russian Journal of Physical Chemistry A, Journal Year: 2024, Volume and Issue: 98(14), P. 3285 - 3291

Published: Dec. 1, 2024

Language: Английский

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