Spiral-Twisted Poly(ether imide) Copolymer Dielectrics with Synergistically Modulated Interchain Spacing and Charge Transfer for High-Temperature Capacitive Energy Storage
Poly(ether imide) (PEI) is a promising high-temperature dielectric material, yet its application is limited by severe intrachain and interchain charge transfer (CT) effects, which give rise to high leakage currents at elevated temperatures. Tuning interchain spacing has been recognized as an effective strategy to sup...