A5026790028- Dielectric materials and actuators
- Advanced Sensor and Energy Harvesting Materials
- Synthesis and properties of polymers
- Ferroelectric and Piezoelectric Materials
- High voltage insulation and dielectric phenomena
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- Optical Polarization and Ellipsometry
- Bone Tissue Engineering Materials
- Advanced battery technologies research
- Analytical Chemistry and Sensors
- Electrospun Nanofibers in Biomedical Applications
- Fiber-reinforced polymer composites
- Layered Double Hydroxides Synthesis and Applications
- Mechanical and Optical Resonators
- Epoxy Resin Curing Processes
State Key Laboratory of New Ceramics and Fine Processing
2020-2024
Tsinghua University
2020-2024
The miniaturization of electronic devices and power systems for capacitive energy storage under harsh environments requires scalable high-quality ultrathin high-temperature dielectric films. To meet the need, ultrasonic spray-coating (USC) can be used. Novel polyimides with a dipolar group, CF3 (F-PI), all-organic composites trace organic semiconductor serve as models. These films (≈2.6 ≈5.2 µm) are successfully fabricated via USC. high quality is evaluated from micro-millimeter scale to...
Abstract Polymer dielectrics with high breakdown strength ( E b ) and efficiency are urgently demanded in advanced electrical electronic systems, yet their energy density U e is limited due to low dielectric constant (ε r loss at elevated temperatures. Conventional inorganic fillers diameters from nano micrometers can only increase ε the cost of compromised poor compatibility polymer matrix. Herein, hydroxyapatite (HAP) sub‐nanowires a diameter ≈0.9 nm incorporated polyetherimide (PEI)...
Abstract Polymer dielectrics possess significant advantages in electrostatic energy storage applications, such as high breakdown strength ( E b ) and efficiency η ), while their discharged density U d at temperature is limited by the decrease . Several strategies including introducing inorganic components crosslinking have been investigated to improve of polymer dielectrics, but new issues will be encountered, e.g., sacrifice flexibility, degradation interfacial insulating property complex...
Polymer dielectrics play an irreplaceable role in electrostatic capacitors modern electrical systems, and have been intensively studied with their polarization breakdown strength (E
Sub-nanowires (SNWs) exhibit great potential applications in nanocomposites owing to their high specific surface area, flexibility, and similarity polymer chains dimension, which are a good entry point bridge inorganic materials materials. Herein, we synthesized hydroxyapatite sub-nanowires (HAP SNWs) engineered sub-nanowires/polyimide (HSP) gels films by simple mixing of HAP SNWs polyimide (PI). Benefiting from the interactions between PI, these were continuous hybrid network. As increase...
Abstract Photoelectric sensors based on charge‐coupled device (CCD) and complementary‐metal‐oxide‐semiconductor (CMOS) used to be planar image due the rigidity of base materials. Moreover, they are limited a narrow reaction wavelength range. Here, conformal broad‐spectra laser sensor flexible metal‐ferroelectric‐metal photocapacitor is promoted. The photocapacitance signal attributed photothermal effect copper (Cu) electrode gold nanoparticles (Au NP), temperature‐dependent property...
Abstract Toughening plays a key role in epoxy resins (EPs) and their composites for high voltage gas‐insulated switchgear (GIL) tri‐post insulators receives lot of attention. However, there are still limited research studies on strain its distribution the toughened EPs under tension especially electric fields. Herein, intrinsically toughening mechanism (toughening ability: EP‐B > EP‐A) with Al 2 O 3 EP‐Bcom EP‐Acom) was explored terms chemical characterisation by IR molecular motion via...
Abstract Sub‐nanowires (SNWs) exhibit great potential applications in nanocomposites owing to their high specific surface area, flexibility, and similarity polymer chains dimension, which are a good entry point bridge inorganic materials materials. Herein, we synthesized hydroxyapatite sub‐nanowires (HAP SNWs) engineered sub‐nanowires/polyimide (HSP) gels films by simple mixing of HAP SNWs polyimide (PI). Benefiting from the interactions between PI, these were continuous hybrid network. As...