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Polyvinylidene Fluoride/Aromatic Hyperbranched Polyester of Third-Generation-Based Electrospun Nanofiber as a Self-Powered Triboelectric Nanogenerator for Wearable Energy Harvesting and Health Monitoring Applications. | LitMetric

AI Article Synopsis

  • Flexible pressure sensors are essential for the Internet of Things and improving human-machine interaction, requiring high sensitivity and low power consumption for commercial viability.
  • The study explored using 3rd generation aromatic hyperbranched polyester (Ar.HBP-3) as a filler in polyvinylidene fluoride (PVDF) to enhance triboelectric performance through electrospinning; specifically, a 10 wt.% addition achieved a notable increase in voltage output.
  • The research highlights an effective method for creating high-performance triboelectric nanogenerators (TENGs) that can generate energy from mechanical movements, making them suitable for wearable and portable electronics.

Article Abstract

Flexible pressure sensors have played an increasingly important role in the Internet of Things and human-machine interaction systems. For a sensor device to be commercially viable, it is essential to fabricate a sensor with higher sensitivity and lower power consumption. Polyvinylidene fluoride (PVDF)-based triboelectric nanogenerators (TENGs) prepared by electrospinning are widely used in self-powered electronics owing to their exceptional voltage generation performance and flexible nature. In the present study, aromatic hyperbranched polyester of the third generation (Ar.HBP-3) was added into PVDF as a filler (0, 10, 20, 30 and 40 wt.% w.r.t. PVDF content) to prepare nanofibers by electrospinning. The triboelectric performances (open-circuit voltage and short-circuit current) of PVDF-Ar.HBP-3/polyurethane (PU)-based TENG shows better performance than a PVDF/PU pair. Among the various wt.% of Ar.HBP-3, a 10 wt.% sample shows maximum output performances of 107 V which is almost 10 times that of neat PVDF (12 V); whereas, the current slightly increases from 0.5 μA to 1.3 μA. The self-powered TENG is also effective in measuring human motion. Overall, we have reported a simpler technique for producing high-performance TENG using morphological alteration of PVDF, which has the potential for use as mechanical energy harvesters and as effective power sources for wearable and portable electronic devices.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10224140PMC
http://dx.doi.org/10.3390/polym15102375DOI Listing

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