High-Performance of Piezoelectric and Ferroelectric PVDF -TrFE Based Composites Engineered by MWCNTs@BaTiO₃ Heterostructure.

ABSTRACT: The incorporation of piezoelectric ceramic nanofillers has been shown to effectively promote the formation of piezoelectric phases in PVDF-TrFE polymers, thereby improving both piezoelectric and ferroelectric performance. However, the intrinsic depolarization shielding exerted by the polymer matrix hinders the full polarization of the ceramic phases, thus limiting the improvement of the matrix electrical performance. Here, a novel strategy is proposed by the construction of Multi-walled Carbon Nanotubes (MWCNTs)@BaTiO₃ heterostructures to enhance the polarization of composite films. For the first time, MWCNTs are grown in-situ on BaTiO₃ nanoparticles by chemical vapor deposition, using their local field enhancement to promote dipole alignment within BaTiO₃.

SUBMITTER: Shi K 

PROVIDER: S-EPMC12614141 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature