New copper phthalocyanine oligomers for high dielectric constant polymer films

Progress on Polymer Dielectrics for Electrostatic Capacitors Application

Polymer dielectrics are attracting increasing attention for electrical energy storage owing to their advantages of mechanical flexibility, corrosion resistance, facile processability, light weight, great reliability, and high operating voltages. However, the dielectric constants of most dielectric polymers are less than 10, which results in low energy densities and limits their applications in electrostatic capacitors for advanced electronics and electrical power systems. Therefore, intensive efforts have been placed on the development of high-energy-density polymer dielectrics. In this perspective, the most recent results on the all-organic polymer dielectrics are summarized, including molecular structure design, polymer blends, and layered structured polymers. The challenges in the field and suggestions for future research on high-energy-density polymer dielectrics are also presented.

Preparation and dielectric properties of polymer composites incorporated with polydopamine@AgNPs core–satellite particles

Polydopamine@AgNPs (PDA@AgNPs) core–satellite particles were fabricated by self-polymerization of dopamine and in situ reduction of Ag⁺ on the as-formed PDA surface.