Morphology-Dependent Behavior of PVDF/ZnO Composites: Their Fabrication and Application in Pressure Sensors DOI Creative Commons
Binbin Zhang, Wenhui Zhang, Wei Luo

et al.

Sensors, Journal Year: 2025, Volume and Issue: 25(9), P. 2936 - 2936

Published: May 7, 2025

This study investigated the impact of zinc oxide’s (ZnO’s) morphology on piezoelectric performance polyvinylidene fluoride (PVDF) composites for flexible sensors. Rod-like (NR) and sheet-like (NS) ZnO nanoparticles were synthesized via hydrothermal methods incorporated into PVDF through direct ink writing (DIW). The structural analyses confirmed successful formation wurtzite enhanced β-phase content in PVDF/ZnO composites. At a degree 15 wt% loading, ZnO-NS achieved highest fraction (81.3%) due to their high specific surface area, facilitating dipole alignment strain-induced crystallization. optimized PVDF/ZnO-NS-15 sensor demonstrated superior outputs (4.75 V, 140 mV/N sensitivity) under 27 N force, outperforming its ZnO-NR counterparts (3.84 100 mV/N). cyclic tests revealed exceptional durability (<5% signal attenuation after 1000 impacts) rapid response (<100 ms). application trials validated real-time motion-monitoring capabilities, including finger joint flexion detection. work highlights morphology-dependent interfacial polarization as critical factor high-performance sensors, offering scalable DIW-based strategy wearable electronics.

Language: Английский

Recent Advances in Vehicle Driver Health Monitoring Systems DOI Creative Commons
Lauris Melders, Ruslans Šmigins, Aivars Birkavs

et al.

Sensors, Journal Year: 2025, Volume and Issue: 25(6), P. 1812 - 1812

Published: March 14, 2025

The need for creative solutions in the real-time monitoring of health is rapidly increasing, especially light incidents relation to drivers motor vehicles. A sensor-based system provides an integrated mechanism diagnosing and managing real time, enabling detection, prediction, recommendation treatment prevention disease onset. driver’s represents a significant advancement assurance driver safety well-being. From fitness trackers advanced biosensors, these devices have not only made healthcare more accessible but also transformed how people interact with their data. purpose this scoping review systematically collect evaluate information from publications on systems provide comprehensive overview current state research wearable or remote sensor technologies monitoring. It aims identify knowledge gaps that be addressed suggest future directions will help fill gaps. This approach involves topic vehicle contribute field. By focusing parameters automotive context, highlights potential different types bridge gap between safety.

Language: Английский

Citations

1
The structure, material and performance of multi-functional tactile sensor and its application in robot field: A review DOI
Tianwei Liang, Zirui Liu, Hao Zhang

et al.

Materials Today, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Morphology-Dependent Behavior of PVDF/ZnO Composites: Their Fabrication and Application in Pressure Sensors DOI Creative Commons
Binbin Zhang, Wenhui Zhang, Wei Luo

et al.

Sensors, Journal Year: 2025, Volume and Issue: 25(9), P. 2936 - 2936

Published: May 7, 2025

This study investigated the impact of zinc oxide’s (ZnO’s) morphology on piezoelectric performance polyvinylidene fluoride (PVDF) composites for flexible sensors. Rod-like (NR) and sheet-like (NS) ZnO nanoparticles were synthesized via hydrothermal methods incorporated into PVDF through direct ink writing (DIW). The structural analyses confirmed successful formation wurtzite enhanced β-phase content in PVDF/ZnO composites. At a degree 15 wt% loading, ZnO-NS achieved highest fraction (81.3%) due to their high specific surface area, facilitating dipole alignment strain-induced crystallization. optimized PVDF/ZnO-NS-15 sensor demonstrated superior outputs (4.75 V, 140 mV/N sensitivity) under 27 N force, outperforming its ZnO-NR counterparts (3.84 100 mV/N). cyclic tests revealed exceptional durability (<5% signal attenuation after 1000 impacts) rapid response (<100 ms). application trials validated real-time motion-monitoring capabilities, including finger joint flexion detection. work highlights morphology-dependent interfacial polarization as critical factor high-performance sensors, offering scalable DIW-based strategy wearable electronics.

Language: Английский

Citations

0