A Wearable and Highly Sensitive PVDF-TrFE-BaTiO₃ Piezoelectric Sensor for Wireless Monitoring of Arterial Signal.

ABSTRACT: As wearable electronics advance, there is a growing need for flexible sensors with high sensitivity to detect even the slightest mechanical stimuli for real-time monitoring across various applications. This study presents a poly-(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE)-based flexible piezoelectric sensor, developed by electrospinning a composite of PVDF-TrFE and barium titanate (BaTiO₃). The PVDF-TrFE with 3 wt % BaTiO₃, referred to as PVDF-TrFE (3 wt % BTO), exhibits higher crystallinity, increased β-phase content, and enhanced piezoelectric response, achieving a pressure sensitivity of 0.37 V/kPa within a pressure range of 6.4-16 kPa at a fixed frequency of 7 Hz. The flexible sensor developed is also characterized by its ability to detect lower

SUBMITTER: He Q 

PROVIDER: S-EPMC12392445 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature