A5100394673- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Plasmonic and Surface Plasmon Research
- Antenna Design and Analysis
- Thermal Radiation and Cooling Technologies
- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Photonic Crystals and Applications
- Electromagnetic wave absorption materials
- Advanced Optical Sensing Technologies
- Synthesis and properties of polymers
- Gas Sensing Nanomaterials and Sensors
- Microwave Engineering and Waveguides
- Thin-Film Transistor Technologies
- Covalent Organic Framework Applications
- Tactile and Sensory Interactions
- Polymer Nanocomposite Synthesis and Irradiation
- 2D Materials and Applications
- Electrocatalysts for Energy Conversion
- Smart Materials for Construction
- Integrated Circuits and Semiconductor Failure Analysis
- Metal-Organic Frameworks: Synthesis and Applications
- Magnetic and transport properties of perovskites and related materials
- Advanced Photocatalysis Techniques
- Advanced Condensed Matter Physics
Guizhou University
2024
Xi'an Polytechnic University
2024
Jinling Institute of Technology
2020-2023
Shanghai Institute for Science of Science
2023
Tianjin University of Technology
2017-2023
Nanjing University
2023
Hubei Normal University
2021
Guilin University of Electronic Technology
2020
The application of traditional isocyanate-based polyimide (PI) foams is highly hindered due to limited flame retardancy, poor mechanical properties, and relatively single functionality. Herein, we propose an effective method fabricate dual cross-linked polyimide/bismaleimide (PI-BMI) with outstanding heat resistance enhanced properties by incorporating bis(3-ethyl-5-methyl-4-maleimidophenyl)methane (ME-BMI) as the interpenetrating network. results show that prepared PI-BMI composite exhibit...
Despite their promising application prospects in electromagnetic interference (EMI) shielding, a significant challenge remains endowing flexible porous polymer-based conductive composites with exceptional thermal management capabilities.
In this study, an all-dielectric metamaterial absorber consisting of a ring nanocavity array, spacer layer, and metallic substrate is designed investigated. The simulation results show that the two perfect absorption peaks (99.91% 99.96%) are achieved at 539 nm 673 nm. resonance modes caused by different electric magnetic field distributions structure lead to sensing properties. addition, influence structural parameters, such as width nanocavity, on characteristics was studied presented...
A solar absorber based on tungsten with an ultra-wide wavelength band is investigated numerically using the finite-difference time–domain method. The designed structure consists of a cross-shaped resonator top and metal thin film bottom that are separated by intermediate dielectric layer. demonstrates continuous high absorptivity (>90%) over 514–1945 nm range, average ranges up to 92.36% within 200–2000 range. excitation propagating surface plasmon resonance (SPR) localized SPR in...
An asymmetric trimeric slit metasurface structure is proposed herein, which generated independently tunable double Fano resonances (DFRs), namely, Fano1 and Fano2. Rigorous simulations experimental scanning near-field demonstrated that the non-radiative dark mode produces Fano1, while magnetic toroidal generates peak The mechanisms of two infer interference fields can be tuned by different geometric parameters. separate tuning DFRs simultaneously in metasurface. These results imply potential...
Asymmetric transmission (AT) is useful for polarization manipulation. We report narrowband AT that utilizes a triple-layered symmetric trimeric metasurface with near-field coupling of the dark mode Fano resonance. The strength was tuned by using mid-layer to break dim between two slit layers. peak linearly polarized waves and percentage bandwidth reached 0.7719 1.26% (numerical simulations) 0.49 1.9% (experiments), respectively. Coupled-mode theory field patterns are utilized explain...
The work presented in this paper concerns a method for the miniaturized frequency selective surface (FSS) based on meander lines. A dual-bandstop FSS structure lines with spiral-shape is proposed and simulated. equivalent circuit current distributions are introduced to explain performance. size of unit cell 10 mm, which about 0.037 wavelength at first resonant frequency. Simulation results indicate that has shift smaller than 1% different polarizations an oblique incident angle 60°....
Magnetic susceptibility, specific heat, dielectric, and electric polarization of LiCuFe2(VO4)3 have been investigated. Two sequential antiferromagnetic transitions at TN1 ∼ 9.95 K TN2 8.17 are observed under zero magnetic field. Although a dielectric peak is clearly identified, the measured pyroelectric current also exhibits sharp TN1, implying magnetically relevant ferroelectricity. Interestingly, another around with an opposite signal observed, resulting in disappearance below TN2....
For decades, the over-exploitation of fossil fuel has made it urgent to develop alternative energy. Photoelectrochemical (PEC) water splitting is a promising approach generate hydrogen, which referred as future due its high enthalpy combustion and zero pollution. Though impressive progress been over years, PEC efficiency still far from volume production more efforts are required reduce overpotential, inhibit yield hydrogen peroxide by-product, improve current density, light-harvesting...
A miniaturized dual-band frequency selective surface (FSS) is proposed in this letter. The FSS unit cell composed of meander lines arranged spirally, and produces resonant frequencies 1.42 GHz 3.76 with -3 dB bandwidths 0.95 0.49 GHz. equivalent circuit model introduced to explain the performance. at top bottom layers are connected through copper vias increase inductance capacitance cell. dimension 10 mm, which about 4.7% wavelength first frequency. Simulation results show that can work...
Abstract: Recently, two-dimensional (2D) materials have gained immense attention, as they are promising in various application fields, such energy storage, thermal management, photodetectors, catalysis, field-effect transistors, and photovoltaic modules. These merits of 2D attributed to their unique structure properties. Chirality is an intrinsic property a substance, which means the substance can not overlap with its mirror image. Significant progress has been made chiral science, for...
In many applications, the highest and lowest detectable flux are both important for single photon avalanche photodiodes (APDs). The photocurrent single-photon-counting performance of 4H-SiC APDs investigated under a wide-range incident flux. Experimental results show that is sub-linearly with rate at high-level addition, ratio count to dark non-monotonic when increases. APD can be extended from 3 × 103 photons/s·μm2 more than 4 104 by reducing threshold voltage increasing reverse voltage.
We propose an optically switchable ultra-broadband terahertz (THz) perfect absorber based on doped superlattice photonic-crystal silicon. The structure consists of a photonic crystal silicon slab capped by SU-8 layer with no metal reflector. It achieves absorption due to the coupled cavity modes superposed lattices two different radii and enhanced diffraction assisted top layer. Switchable is realized changing carrier concentration controlled pump beam. Simulation shows that proposed...