Tailoring asymmetrical piezoelectric responses in PVDF-TrFE composites for advanced energy storage applications
Year: 2024
Type: article
Abstract: This study explores the phenomenon of asymmetrical piezoelectric output in Polyvinylidene Fluoride-Trifluoroethylene (PVDF-TrFE) based piezoelectric nanogenerators (PENGs), which have significant implications for improving the efficiency of energy harvesting devices, particularly in charging advanced energy storage applications. By leveraging the viscoelastic properties of PVDF-TrFE, we demonstrate pronounced asymmetry in piezoelectric output when the force frequency surpasses the polymer's natural recovery time, explicitly using an applied force of 60 N at frequencies ranging from 0.3 Hz to 1.25 Hz. These finding sheds light on the dynamic behavior of piezoelectric polymers under high-frequency stimuli and opens avenues for designing advanced energy harvesting devices.
Source: Nano Trends
Authors: Yu-Liang Hsiao, Yen-Ting Chen, Chuan-Pu Liu
Institution: National Cheng Kung University
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,000
Awards: G1945619787, G3840691299, G441127751
OpenAlex ID: W4405040229