A5011060123- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Acoustic Wave Resonator Technologies
- Conducting polymers and applications
- Thermal properties of materials
- Liquid Crystal Research Advancements
- Advanced Sensor and Energy Harvesting Materials
- Surfactants and Colloidal Systems
- Metamaterials and Metasurfaces Applications
- Perovskite Materials and Applications
- Electromagnetic wave absorption materials
- Advanced Antenna and Metasurface Technologies
- Dielectric properties of ceramics
- Transition Metal Oxide Nanomaterials
- Dielectric materials and actuators
- Silicone and Siloxane Chemistry
- Synthesis and Properties of Aromatic Compounds
Wuhan National Laboratory for Optoelectronics
2021-2025
Huazhong University of Science and Technology
2021-2025
Dielectric capacitors with high power density and fast charge-discharge speed play an essential role in the development of pulsed systems. The increased demands for miniaturization practicality equipment also necessitate dielectric materials that possess energy while maintaining ultrahigh efficiency (η). In particular, signifies minimal loss, which is practical applications but challenging to effectively mitigate. Here, we demonstrate a strategy incorporating heterovalent elements into...
The emerging ferroelectric nematic (NF) liquid crystal is a novel 3D-ordered exhibiting macroscopic electric polarization. combination of the ultrahigh dielectric constant, strong nonlinear optical signal, and high sensitivity to field makes NF materials promising for development advanced electroopic devices. Previously, all studies focused on rod-shaped small molecules with limited length (l) range dipole moment (μ) values. Here, through precision synthesis, we extend aromatic mesogen...
Abstract Excellent pyroelectric performance in environmentally friendly lead‐free ferroelectrics is highly demanded for uncooled infrared detector. However, the trade‐off between room temperature coefficient ( p ) and depolarization T d remains a major challenge of their device applications. Herein, superior 13.8 × 10 −4 C m −2 K −1 with high 155 °C achieved quenched BNT‐Fe/Mn‐NBT sample. Oxygen vacancy engineering proposed to solve constraint BNT‐based ceramics. The local A/B site...
Microwave absorbing materials (MAMs) play a vital role in the field of electromagnetic wave pollution protection. Herein, multiple interfacial ZnFe/Fe3C@C porous nanofibers as microwave absorber were prepared by electrospinning and subsequent thermal treatment. The elaborately designed ingredients feature structure introduce good impedance matching. heterojunction self-doping nitrogen atoms proposed carbon-based magnetic fibers promote dielectric polarization relaxation. Moreover,...
The pyroelectric effect is used in a wide range of applications such as infrared (IR) detection and thermal energy harvesting, which require the materials to simultaneously have high coefficient low dielectric constant for figures merit. However, conventional proper ferroelectrics, positive correlation between imposes an insurmountable challenge upgrading Here, we explored superior pyroelectricity [(CH3)4N][FeCl4] (TMA-FC) [(CH3)4N][FeCl3Br] (TMA-FCB) molecular ferroelectric plastic...
Abstract The pyroelectric effect has wide applications in various fields, such as infrared imaging, detection, alarms, and the expanding field of smart homes. rapid advancement systems, focusing on miniaturization integration, requires detectors with high coefficients Curie temperatures to meet requirements integrated processes. However, temperature commercial lead zirconate titanate is limited <230°C, urgently looking for a breakthrough. Here, we explore pyroelectricity Na 0.5 Bi 4.5 Ti...
The pyroelectric effect is extensively used in infrared imaging, detection systems, military equipment, and smart furniture, which require materials to simultaneously possess a high coefficient (p) Curie temperature (Tc) for circuit integration. However, the Tc of commercial lead zirconate titanate (PZT) limited 230 °C, imposing an insurmountable challenge Here, we investigated pyroelectricity Na0.5Bi4.5Ti4O15 (NBT) with (∼660 °C), meeting requirements Textured NBT ceramics degree...