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

Indumathy, B.; Anand Prabu, A.

doi:10.1016/j.mseb.2024.117216

Cited by 4 publications

(4 citation statements)

References 48 publications

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“…In our earlier studies, we have reported the synthesis of different types and generations of HBPs. ,,, Following a similar methodology, the synthesis of Ar.HBP-G2 was performed in the present study as follows: PE (1 mol), DPA (12 mol), p -TSA (0.05 wt %), and 25 mL of DMF were taken in a flat-bottom glass reactor and kept in an oil bath at 130 °C. The product was collected after 26 h of reaction time and stored in a desiccator for further studies.…”

Section: Methodsmentioning

confidence: 99%

“…Athira et al 54 prepared a lead-free electrospun PVDF-potassium sodium niobate NFbased PENG device for self-powered force sensing applications from scavenged mechanical energy. On the other hand, Indumathy et al 55 developed a PVDF/silane-based hyperbranched polymer (HBP)-based TENG for resource-efficient energy generation and wearable health monitoring system applications. Zhao et al 45 have developed PVDF and core double-shell PMMA-coated hyperbranched BaTiO 3 -based NGs for efficiently harvesting the energy produced by human activities.…”

Section: Introductionmentioning

confidence: 99%

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Piezoelectric and Triboelectric Contributions by Aromatic Hyperbranched Polyesters of Second-Generation/PVDF Nanofiber-Based Nanogenerators for Energy Harvesting and Wearable Electronics

Gunasekhar,

Bindhu,

Reza

et al. 2024

ACS Appl. Electron. Mater.

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Piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs) are among the emerging technologies as energy harvesters, aided by their cost-effective device architecture and ease of fabrication. The present study investigates the influence of electrospun polyvinylidene fluoride (PVDF) blended with second-generation aromatic hyperbranched polyester (Ar.HBP-G2) of varied content (0 to 40 wt % relative to PVDF content) on the electrical characteristics of PENG/TENG devices. The optimized PVDF/ Ar.HBP-G2−10-based PENG device produced an open-circuit voltage of 9.54 V, and the TENG device produced an open-circuit voltage and short-circuit current of 158 V and 1.6 μA, respectively. Further, the fabricated PENG and TENG devices were tested for real-time applications to power up portable electronic devices and human healthcare monitoring from the harvested mechanical energy. Additionally, the long-term mechanical steadiness of the TENG was also studied. The above results provide great possibilities for fabricating high-performance and cost-effective energy harvesting and wearable devices.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Piezoelectric and Triboelectric Contributions by Aromatic Hyperbranched Polyesters of Second-Generation/PVDF Nanofiber-Based Nanogenerators for Energy Harvesting and Wearable Electronics

Gunasekhar,

Bindhu,

Reza

et al. 2024

ACS Appl. Electron. Mater.

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“…Zhao et al developed PVDF and core-double shell PMMA-coated hyperbranched BaTiO 3 -based NGs for efficiently harvesting the energy generated by human daily activities . On the other hand, Indumathy et al developed TENGs based on a PVDF/silane-based hyperbranched polymer (HBP) for sustainable energy generation and wearable healthcare monitoring system applications . Also, Venkatesan et al reported a NiO/PVDF electrospun NF-based TENG for energy harvesting applications .…”

Section: Introductionmentioning

confidence: 99%

“…HBP is a kind of randomly branched 3-dimensional polymer with easy synthetic procedures, with comparatively less molecular size and more suitability for blending with PVDF. In our research group, this kind of work has been reported on PVDF/HBP-based TENGs. ,, However, during fabrication aromatic HBPs required more time and temperature than aliphaitic HBPs owing to their steric factors, which is one of the disavantages of aromatic HBPs. To the best of our knowledge, there are no previous reports available on enhancing the triboelectric performance of PVDF polymer using a pentaerythritol core and dimethylol butanoic acid monomer-based aliphatic HBP.…”

Section: Introductionmentioning

confidence: 99%

Influence of Pentaerythritol Core and Dimethylol Butanoic Acid Monomer-Based Aliphatic Hyperbranched Polyester on the Tribonegative Performance of Polyvinylidene Fluoride

Bai,

Woo,

Subramanian

et al. 2024

ACS Appl. Electron. Mater.

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Nowadays, the efficiency enhancement of triboelectric nanogenerators (TENGs) is a big challenge, and the one main factor in improving the output performance of TENGs is enhancing electron affinities of the tribo layers. In the present research, we investigated the effect of a hyperbranched polyester of the first generation (HBP-G1) on the tribonegativity of poly(vinylidene fluoride) (PVDF) polymer. Initially, HBP-G1 was synthesized using the pentaerythritol core and dimethylol butanoic acid monomer using a facile single-step route and characterized by FTIR and NMR studies. Then, the PVDF (PA0) and its blended electrospun membranes with different weight percentages (5, 10, 15, and 20 wt % as PA5, PA10, PA15, and PA20) of HBP-G1 were fabricated using a traditional electrospinning technique. The morphological and crystalline changes of PVDF as a function of HBP-G1 were examined by using SEM, FTIR, and XRD analysis. The triboelectric performance such as open circuit potential (V OC ) and short circuit current (I SC ) was measured by considering as-prepared membranes as tribonegative layers and aluminum film as tribopositive frictional layers. Among the combination of PVDF/HBP-G1, the 10 wt % based TENGs (PA10/Al-TENG) exhibited a maximum V OC of 65 V (3 times that of PA0) and I SC of 1.76 μA (2 times that of PA0). The enhancement of TENG performance upon adding the HBP-G1 content to PVDF shows the significance of HBP-G1 on the triboelectric effect. Further, we demonstrated energy harvesting applications such as illuminating LEDs and powering lowpower electronics (stopwatch) using PA10/Al-TENG. The proposed TENGs can be potential candidates for future self-powered wearable electronics.

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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

Niranjana,

Yoon,

Woo

et al. 2024

Advanced Sustainable Systems

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

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

Cited by 4 publications

References 48 publications

Piezoelectric and Triboelectric Contributions by Aromatic Hyperbranched Polyesters of Second-Generation/PVDF Nanofiber-Based Nanogenerators for Energy Harvesting and Wearable Electronics

Piezoelectric and Triboelectric Contributions by Aromatic Hyperbranched Polyesters of Second-Generation/PVDF Nanofiber-Based Nanogenerators for Energy Harvesting and Wearable Electronics

Influence of Pentaerythritol Core and Dimethylol Butanoic Acid Monomer-Based Aliphatic Hyperbranched Polyester on the Tribonegative Performance of Polyvinylidene Fluoride

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

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