Multilayered Functional Triboelectric Polymers for Self-Powered Wearable Applications: A Review

Multifunctional wearable devices detect electric signals responsive to various biological stimuli and monitor present body motions or conditions, necessitating flexible materials with high sensitivity sustainable operation. Although dielectric polymers have been utilized in self-powered applications response multiple external stimuli, their intrinsic limitations hinder further device performance enhancement. Because triboelectric comprising are based on triboelectrification electrostatic induction, multilayer-stacking structures of enable significant improvements owing enhanced interfacial polarization through dissimilar permittivity conductivity between each layer, resulting high-performance devices. Moreover, novel unique chemical nano-additives can control polarization, allowing respond stimuli. This review summarizes the recent insights into multilayered functional polymers, including fundamental principles diverse applications.