A5102736153- Advanced Antenna and Metasurface Technologies
- Electromagnetic wave absorption materials
- Metamaterials and Metasurfaces Applications
- Magnetic properties of thin films
- Antenna Design and Analysis
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Advanced ceramic materials synthesis
- Perovskite Materials and Applications
- Metallic Glasses and Amorphous Alloys
- Magnetic Properties and Applications
- Advanced materials and composites
- Multiferroics and related materials
- Magnetic Properties and Synthesis of Ferrites
- Photonic and Optical Devices
- Aluminum Alloys Composites Properties
- Plasmonic and Surface Plasmon Research
- Photonic Crystals and Applications
- Flame retardant materials and properties
- Ferroelectric and Piezoelectric Materials
- Nuclear materials and radiation effects
- Electromagnetic Scattering and Analysis
- Gas Sensing Nanomaterials and Sensors
- Graphene research and applications
- Advanced Memory and Neural Computing
National Engineering Research Center of Electromagnetic Radiation Control Materials
2015-2024
University of Electronic Science and Technology of China
2015-2024
Nanjing Normal University
2023-2024
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
2023-2024
Tongji University
2024
State Key Laboratory of Electronic Thin Films and Integrated Devices
2010-2016
Most microwave absorbers lose their function under harsh working conditions, such as a high temperature and an oxidative environment. Here, we developed heterogeneous ZrN0.4B0.6/SiC nanohybrid via combined catalytic chemical vapor deposition (CCVD) infiltration (CVI) processes using ZrB2 the starting material. The composition structure of were controlled by tuning CCVD CVI parameters, reaction temperature, time, reactant concentration. optimal nanohybrids obtained initially preparing ZrB2@C...
We propose the design, simulation, and measurement of a broadband reflective metamaterial polarization rotator in microwave region based on multiple plasmon resonances. An utra-thin wideband conversion composing arrays oval ring pattern, dielectric layer continuous metallic is further demonstrated both numerically experimentally. Two resonances are generated by magnetic electric resonances, leading to bandwidth expansion cross-polarization reflection. The simulated results show that ratio...
We report a systematic study of the fatigue mechanism yttrium-doped hafnium oxide (HYO) ferroelectric thin films deposited by pulsed laser deposition.
The "Zeeman effect" offers unique opportunities for magnetic manipulation of the spin degree freedom (DOF). Recently, valley Zeeman splitting, referring to lifting degeneracy, has been demonstrated in two-dimensional transition metal dichalcogenides (TMDs) at liquid helium temperature. However, realize practical applications pseudospins, DOF must be controllable by a field room temperature, which remains significant challenge. Magnetic doping TMDs can enhance splitting; however, achieve this...
Valley pseudospin in two-dimensional (2D) transition-metal dichalcogenides (TMDs) allows optical control of spin-valley polarization and intervalley quantum coherence. Defect states TMDs give rise to new exciton features theoretically exhibit polarization; however, experimental achievement this phenomenon remains challenges. Here, we report unambiguous valley defect-bound localized excitons CVD-grown monolayer MoS2; enhanced Zeeman splitting with an effective g-factor -6.2 is observed. Our...
High impedance surface absorbers comprising of lossless dielectric substrate and resistive pattern were studied based on equivalent circuit method. Resonant conditions in terms potential resonant frequencies corresponding resistance deduced. Theoretical calculation, numerical simulation experiment showed that expected absorption was obtained by matching the capacitance, inductance resistance. We demonstrated optimal frequency-dispersive between 0 377 Ω. For square, dipole square ring...
Abstract The flexible photodetector plays an important role in improving human medical health status. However, the narrow spectral detection range, poor stress stability, and non‐degradation of traditional photodetectors greatly hinder further development wearable devices. In this paper, a novel infrared is proposed for intelligent healthcare monitoring using high purity lead sulfide (PbS) nanoparticles on paper‐based substrate synthesized by hydrothermal method physical friction. excellent...
Inorganic nanomaterials such as graphene, black phosphorus, and transition metal dichalcogenides have attracted great interest in developing optoelectronic devices due to their efficient conversion between light electric signals. However, the zero band gap nature, unstable chemical properties, low electron mobility constrained wide applications. Bismuth oxyselenide (Bi2O2Se) is gradually showing research significance field. Here, we develop a bismuth oxyselenide/p-silicon (Bi2O2Se/p-Si)...
Radar absorbing honeycomb composites with different coating thicknesses are prepared by impregnation of aramid paper frame solutions containing conductive carbon blacks (non-magnetic) and PI (polyimide). Expressions for the effective permittivity studied validated both in theory experiment. It is found that a theoretical equivalent panel given can be obtained to represent structure quasistatic approximation, which provides feasible way optimize design radar connecting electromagnetic...
Microwave absorbing honeycomb composites with grading coating thickness are prepared by impregnation of aramid paper frame within water solutions conductive carbon blacks. Based on effective medium method, impedance in the can be theoretically expressed a linear approximation inversely tapered permittivity at wave propagation direction, which provides feasible way to optimize design microwave structures. The consistent result calculations and experimental measurements for positive confirms...
Cross-shaped resonator (CSR) in metamaterial usually corresponds to adjust resonant characteristics. In this report, a simple and broadband reflective polarization converter is realized at GHz frequencies by breaking the symmetry of CSR. The experimental results demonstrate that conversion ratio (PCR) over 0.8 achieved from 8.3 14.3 for linearly polarized (LP) incident waves under normal incidence. high efficiency can be sustained when angle increases 60 degrees. By taking advantage surface...
In this work, a high-efficiency and broadband reflective converter using ultrathin planar metamaterial (MM) composed of single-layered SRR is firstly realized. Numerical experimental results demonstrate that the cross-polarization conversion reflectance above 0.84 achieved from 8.6 to 18.6 GHz for linearly polarized (LP) incident waves under normal incidence. Subsequently, multi-layered MM based on enables dramatic improvement recently demonstrated asymmetric transmission (AT) effect....
"Magneto-optical" effect refers to a rotation of polarization plane, which has been widely studied in traditional ferromagnetic metal and insulator films scarcely two-dimensional layered materials. Here, we uncover new nonreciprocal magnetophonon Raman scattering few-layer CrI3 We observed the plane inelastically scattered light between -20o +60o that are tunable by an out-of-plane magnetic field from -2.5 2.5 T. It is experimentally degree can be magnetically manipulated -20 85%. This work...
Abstract Multiferroic materials have been intensively pursued to achieve the mutual control of electric and magnetic properties. The breakthrough progress in 2D magnets ferroelectrics encourages exploration low-dimensional multiferroics, which holds promise understanding inscrutable magnetoelectric coupling inventing advanced spintronic devices. However, confirming ferroelectricity with optical techniques is challenging materials, particularly conjunction antiferromagnetic orders single-...