Review on Polyvinylidene Fluoride-Based Triboelectric Nanogenerators for Applications in Health Monitoring and Energy Harvesting

ACS Applied Electronic Materials, Год журнала: 2024, Номер 6(1), С. 47 - 72

Опубликована: Янв. 3, 2024

To meet future demands for sustainable and environmentally friendly technology, many research groups are focusing on triboelectric nanogenerators (TENGs), which can scavenge convert the available mechanical energy into electrical energy. Researchers working to comprehend influence of material surfaces as well properties that play an important role in determining overall output performance TENGs. The selection tribonegative tribopositive materials based charge triboseries different processes manufacturing triboactive its surface modification roles attaining optimal TENG performance. most significant is polyvinylidene fluoride (PVDF), electroactive polar β-crystalline phase responsible higher However, PVDF has some intrinsic limitations such lower conductivity dipole moment nonpolar α-crystalline at room temperature. Interestingly, these main factors determine applications harvesting wearable sensors. In this review, we have mainly focused varying processing methods like solution casting, 3-D printing, spin coating, electrospinning PVDF-based effect nanoscale crystalline also studied detail. Additionally, extensive analysis recent advancements health monitoring, sensors, TENGs included.

Язык: Английский

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AIoT‐enhanced health management system using soft and stretchable triboelectric sensors for human behavior monitoring

EcoMat, Год журнала: 2024, Номер 6(5)

Опубликована: Май 1, 2024

Abstract Sedentary, inadequate sleep and exercise can affect human health. Artificial intelligence (AI) Internet of Things (IoT) create the Intelligence (AIoT), providing possibility to solve these problems. This paper presents a novel approach monitor various behaviors for AIoT‐based health management using triboelectric nanogenerator (TENG) sensors. The insole with solely one TENG sensor, creating most simplified system that utilizes machine learning (ML) personalized motion monitoring, encompassing identity recognition gait classification. A cushion 12 sensors achieves real‐time sitting posture accuracy rates 98.86% 98.40%, respectively, effectively correcting sedentary behavior. Similarly, smart pillow, equipped 15 sensory channels, detects head movements during sleep, identifying 8 patterns 96.25% accuracy. Ultimately, constructing an analyze data, displaying status through human‐machine interfaces, offers potential help individuals maintain good image

Язык: Английский

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Cobalt ferrite-embedded polyvinylidene fluoride electrospun nanocomposites as flexible triboelectric sensors for healthcare and polysomnographic monitoring applications

Nano Energy, Год журнала: 2024, Номер 129, С. 110003 - 110003

Опубликована: Июль 15, 2024

Язык: Английский

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Nickel-Oxide-Doped Polyvinylidene Fluoride Nanofiber-Based Flexible Triboelectric Nanogenerator for Energy Harvesting and Healthcare Monitoring Applications

ACS Applied Electronic Materials, Год журнала: 2024, Номер 6(2), С. 1161 - 1173

Опубликована: Янв. 25, 2024

Triboelectric nanogenerators (TENGs) are renowned for capturing large-scale unused energy from ambient surroundings. A sustainable TENG can meet future demands without contaminating our environment. In the present study, we have synthesized nickel oxide nanoparticles (NiO NPs) via coprecipitation method. Further, NiO NPs were doped with poly(vinylidene fluoride) (PVDF) (0 to 9 wt % w.r.t. PVDF concentration) prepare PVDF-NiO electrospun nanofibrous mat. The output efficiency was calculated in terms of open-circuit voltage (Voc) and short-circuit current (Isc). NiO-doped thermoplastic polyurethane (TPU)-based generated enhanced performance compared pristine (P-Ni-0)/TPU-based TENG. Among six combinations samples fabricated, 7 (P-Ni-7)/TPU-based utmost 252 V, which is almost 22-fold higher than P-Ni-0/TPU triboelectric pair (11.5 V). Similarly, maximum achieved 7.3 μA, a 9-fold enhancement over (0.8 μA). power density optimized ((P-Ni-7)/TPU) 0.86 mW/m2, it directly used light up 15 LEDs. Furthermore, flexible self-powered P-Ni-7/TPU-based device demonstrated real-time biomechanical motion measurements. Overall, this work disclosed facile technique doping into matrix, fabricated when mechanical harvesting power-supplying systems miniaturized wearable electronic devices.

Язык: Английский

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Electrospun PVDF/aromatic HBP of 4th gen based flexible and self-powered TENG for wearable energy harvesting and health monitoring

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Дек. 19, 2023

Abstract In recent times, high-performance wearable electronic devices that can transform mechanical force into electrical energy for biomedical monitoring applications are receiving an increasing amount of attention. the present study, we focused on a flexible, self-powered and triboelectric nanogenerator (TENG) based electrospun polyvinylidene fluoride (PVDF)/aromatic hyperbranched polyester 4th generation (Ar.HBP-G4, 0–40 wt.-% w.r.t. PVDF content) blend nanoweb as tribo-negative layer melt-blown thermoplastic polyurethane (TPU) tribo-positive harvesting human health applications. Among varying Ar.HBP-G4 content used, incorporation (10 wt.-%) in (P-Ar.HBP-G4-10) showed higher increase output voltage when compared to pristine other weight ratios. The optimized P-Ar.HBP-G4-10/TPU TENG exhibited peak-to-peak (V p-p ) 124.4 V under applied load 9.8 N frequency 1 Hz which is superior many TENGs reported elsewhere. Higher performance P-Ar.HBP-G4 neat attributed effect Ar.HBP-G4-10 enhancing degree crystallinity polar β -crystalline phase (98.3%) PVDF. ability power up portable demonstrated it powered 750 s while connected through capacitor rectifier, was able operate 45 light-emitting diodes directly. Evaluation device attached different parts body reveal significantly better sensitivity monitoring. results this work pave new way develop nanowebs sustainable healthcare systems.

Язык: Английский

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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

Polymers, Год журнала: 2023, Номер 15(10), С. 2375 - 2375

Опубликована: Май 19, 2023

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

Язык: Английский

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Electrospun PVDF/Si-HBP of 3rd gen based nanoweb as flexible and self-powered TENG for real-time energy harvesting

Materials Science and Engineering B, Год журнала: 2024, Номер 302, С. 117216 - 117216

Опубликована: Янв. 28, 2024

Язык: Английский

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Exploring a New Class of PVDF/3‐Aminopropyltriethoxysilane (core) and 2,2‐Bis(hydroxymethyl)butyric Acid (monomer)‐Based Hyperbranched Polyester Hybrid Fibers by Electrospinning Technique for Enhancing Triboelectric Performance

Advanced Sustainable Systems, Год журнала: 2024, Номер 8(11)

Опубликована: Июль 10, 2024

Abstract With the rapid advancement in sensor technologies, triboelectric nanogenerators (TENGs) have emerged as a promising sustainable power source for intelligent electronics. Herein, fabricated novel 3‐aminopropyltriethoxysilane (core) and 2,2‐bis(hydroxymethyl)butyric acid (monomer)‐based hyperbranched polyester by facile single‐step polycondensation technique generation 2 (Si‐HBP‐G2). Further, new class of polyvinylidene fluoride (PVDF) different weight percentages (0, 5, 10, 15, 20 wt%) Si‐HBP‐G2 hybrid fiber blends are prepared traditional electrospinning technique. The as‐prepared its well characterized using SEM/EDS, FTIR, NMR, XRD studies. influence content on performance terms open circuit potential (V OC ) short current (I SC is evaluated aluminum (Al) counter electrode. Among them, 15 wt% Si‐HBP‐G2/PVDF mat (PG2‐15) exhibits superior electrical performance. Which almost increased 5.9 times (22–130 V) V 4.9 (0.71–3.5 µA) I than PVDF mate. These results reveal significance optimized TENG device (PG2‐15/Al‐TENG) peak density 0.2 Wm −2 at 100 MΩ external load. Finally, PG2‐15/Al‐TENG practically demonstrates real‐time application energy harvesting applications such powering LEDs stopwatch.

Язык: Английский

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Impact of Pentaerythritol (Core), Dimethylol Butanoic Acid (Monomer) Based Second Generation Aliphatic Hyperbranched Polymer on the Tribonegative Performance of Polyvinylidene Fluoride

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract The triboelectric nanogenerator (TENG) is an eminent technology and has become a promising solution for the existing energy crises. Several methods are investigated to enhance TENG output performance. Herein, novel pentaerythritol (core) dimethylol butanoic acid (monomer)‐based hyperbranched polymer of second generation (HBP‐G2) fabricated by facile single‐step polycondensation technique. Further, different weight percentages (5, 10, 15, 20 wt%) HBP‐G2‐blended polyvinylidene fluoride (PVDF)‐based nanofibers (NFs) prepared using traditional electrospinning HBP‐G2 electrospun NFs characterized scanning electron microscope (SEM)/energy dispersive spectroscopy (EDS), Fourier‐transform infrared (FTIR), X‐ray diffraction (XRD)light emitting diodes studies. effect on performance PVDF evaluated in terms open circuit potential (V oc ) short current (I sc aluminium as counter electrode. Among all, wt% PVDF/HBP‐G2 shows superior V 241 (ten times neat NF) I 5.3 µA (six NF). optimized device (PVDF/G2‐PA‐20) exhibits peak power density 0.17 Wm −2 at applied load resistance 100 MΩ. Finally, real‐time feasibility proposed successfully demonstrated harvest mechanical such operating calculators lightning 36 light (LEDs)https://doi.org/10.1016/j.matpr.2023.02.087.

Язык: Английский

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Unveiling the latent potential: Ni/CoFe2O4-loaded electrospun PVDF hybrid composite-based triboelectric nanogenerator for mechanical energy harvesting applications

Advanced Composites and Hybrid Materials, Год журнала: 2025, Номер 8(2)

Опубликована: Март 25, 2025

Язык: Английский

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