Halide-Tunable Bond Engineering for High-Performance Multi-Responsive Piezoelectric Sensors via Enhanced Electrostatic Polarization in In Situ Perovskite-Embedded PVDF Nanofibers.

ABSTRACT: Developing piezoelectric materials with substantial strain output and large voltage constant, alongside superior piezoelectric performance and mechanical softness remains a long-standing challenge for promising practical applications. Herein, an in-situ fabrication strategy is demonstrated to resolve these obstacles by engineering molecular bond angle/length and simultaneously improving electrostatic polarization domain in self-aligned halide perovskite nanorods (NRs) embedded polyvinylidene fluoride (PVDF) nanofibers (NFs). Introducing large-size iodine into CsPbBr₃ crystals weakens metal-halide bonds in CsPbI₂Br, softening bond strength and enhancing electrostatic polarization in PVDF. The optimized CsPbI₂Br/PVDF NFs membrane achieves exceptional piezoele

SUBMITTER: Garain S 

PROVIDER: S-EPMC12410901 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature