Achieving remarkable energy storage enhancement in polymer dielectrics via constructing an ultrathin Coulomb blockade layer of gold nanoparticles

Abstract

High energy density polymer dielectrics play a crucial role in various pulsed energy storage and conversion systems. So far, many strategies have been demonstrated to be able to effectively improve...

Remarkably enhancing dielectric permittivity and suppressing loss of PVDF via incorporating metal nanoparticles decorated glass fibers

“…Especially, the ε r of 3Au@GF/PVDF reaches the highest value of 33.5 at 10 kHz (figure 4(c)), which are 430% and 235% of pure PVDF and 0Au@GF/PVDF composite, respectively. Based on the above discussion of figures 3(a)-(c), the enhanced permittivity may be attributed to the formation of equivalent micro-capacitors network consisting of countless Au electrodes and the polymer dielectric medium [8,34,35,37]. The schematic diagram of the principle of such micro-capacitor network is shown in figure 4(e).…”

Enhancing Dielectric Properties of (CaCu3Ti4O12 NWs–Graphene)/PVDF Ternary Oriented Composites by Hot Stretching

“…Polymer-based dielectric materials have been widely used in electrostatic capacitors, , sensors, , pulse power systems, , and other fields due to their high dielectric properties, good processability, flexibility, and lightweight. For most organic polymers, the dielectric constant is less than 10.…”

Layered polymer composite foams for broadband ultra-low reflectance EMI shielding: a computationally guided fabrication approach

“…34–36 Moreover, the large interface between adjacent absorption and shielding layers can generate significant interfacial polarization, which in turn contributes to dielectric loss via polarization loss. 37,38 Currently, the most common method is to theoretically evaluate the EM wave absorption performance of a polymer composite as the absorber, with a perfect conductor as the substrate (100% reflection efficiency), so-called the design of EM wave absorption materials. 39–41 However, this approach has certain limitations for the application, including the requirement to use a metallic layer and the lack of validation for the theoretical evaluation.…”