Harvesting Water‐Evaporation‐Induced Electricity Based on Liquid–Solid Triboelectric Nanogenerator

Advanced Science, Journal Year: 2022, Volume and Issue: 9(17)

Published: April 17, 2022

Abstract Harvesting energy from natural water evaporation has been proposed as a promising alternative to supply power for self‐powered and low‐power devices systems, owing its spontaneous, ubiquitous, sustainability. Herein, an approach is presented harvesting water‐evaporation‐induced electricity based on liquid–solid triboelectric nanogenerators (LS‐TENGs), which various advantages of easy preparation, substrate needless, robustness. This developed harvester with porous Al 2 O 3 ceramic sheet can generate continuous stable direct current ≈0.3 µA voltage ≈0.7 V by optimizing the physical dimensions ambient parameters such relative humidity, temperature, wind velocity, ion concentration. The output also be improved significantly series or parallel connection harvesters, superior electrical compatibility environmental suitability. development shows many application prospects including digital calculator charging capacitor. research provides in‐depth experimental study LS‐TENGs efficient devices.

Language: Английский

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Recent Progress of Wearable Piezoelectric Pressure Sensors Based on Nanofibers, Yarns, and Their Fabrics via Electrospinning

Advanced Materials Technologies, Journal Year: 2022, Volume and Issue: 8(5)

Published: Oct. 30, 2022

Abstract Highly sensitive flexible pressure sensors are extensively investigated for various applications, such as electronic skin, human physiological monitoring, and artificial intelligence. However, traditional fabrication technologies hard to realize the large‐area mass production of wearable sensing devices. Current trend miniaturization, systematization, multifunction has raised problems total energy consumption, frequent charging, reduced usage time. These issues have hindered progress electronics. In light nanomaterial design, production, facile manufacturing, electrospun piezoelectric offer best properties self‐powering, breathability, stretchability, flexibility, providing ideal interfacing platforms smart wearables. Tremendous advances been achieved recently in high sensitivity, output, composite optimization, nano‐/microstructure design nonwoven nanofiber membranes. Nevertheless, how fulfill real textile‐level integration consideration biocompatibility, integration, wearability, geometrical multifunction, systematization remains a big challenge. Therefore, recent from nanofibers their fabrics is comprehensively summarized. Plentiful strategies, structure designs, underlying mechanisms that boost discussed. Lastly, challenges possible solutions future electrospinning‐based systems proposed.

Language: Английский

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Textile-based moisture power generator with dual asymmetric structure and high flexibility for wearable applications

Nano Energy, Journal Year: 2022, Volume and Issue: 95, P. 107017 - 107017

Published: Feb. 3, 2022

Language: Английский

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Thin‐Film Ferroelectrics

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(30)

Published: March 30, 2022

Abstract Over the last 30 years, study of ferroelectric oxides has been revolutionized by implementation epitaxial‐thin‐film‐based studies, which have driven many advances in understanding physics and realization novel polar structures functionalities. New questions motivated development advanced synthesis, characterization, simulations epitaxial thin films and, turn, provided new insights applications across micro‐, meso‐, macroscopic length scales. This review traces evolution thin‐film research through early days developing roles size strain on ferroelectrics to present day, where such is used create complex hierarchical domain structures, topologies, controlled chemical defect profiles. The extension techniques, coupled with high‐throughput simulations, now stands accelerate discovery materials. Coming hand‐in‐hand these materials control Today, researchers are actively working apply lessons a number applications, including memory logic architectures, as well host energy conversion devices.

Language: Английский

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Insights and perspectives on graphene-PVDF based nanocomposite materials for harvesting mechanical energy

Journal of Alloys and Compounds, Journal Year: 2022, Volume and Issue: 904, P. 164060 - 164060

Published: Feb. 2, 2022

Language: Английский

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A Review on PVDF Nanofibers in Textiles for Flexible Piezoelectric Sensors

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(3), P. 1522 - 1540

Published: Jan. 20, 2023

Textiles are turning into a suitable next-generation sensing platform because of their good breathability, softness, and structural elasticity. Besides, research on self-powered piezoelectric sensors is hot topic in wearable applications; they can perform long-term monitoring. Therefore, this paper mainly reviews the development progress PVDF-based textiles flexible sensors. In paper, we first introduce principle effect classification materials; then summarize structure characteristics nanofiber mat-based, yarn-based, fabric-based approaches that employed to fabricate textile such as melt spinning, electrospinning, stretch forming processes, so on. At last, review applicability application electronic skin, human–computer interaction, healthcare, human movement monitoring demonstrate facing difficulties future directions

Language: Английский

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Electrospun organic piezoelectric nanofibers and their energy and bio applications

Nano Energy, Journal Year: 2022, Volume and Issue: 97, P. 107174 - 107174

Published: March 27, 2022

Language: Английский

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Novel low-carbon energy solutions for powering emerging wearables, smart textiles, and medical devices

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(12), P. 4928 - 4981

Published: Jan. 1, 2022

Low CO 2 emitting energy extraction techniques and their application in healthcare, textile smart wearables.

Language: Английский

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Battery‐Free and Wireless Technologies for Cardiovascular Implantable Medical Devices

Advanced Materials Technologies, Journal Year: 2022, Volume and Issue: 7(6)

Published: Jan. 7, 2022

Abstract Cardiovascular disease continues to be one of the dominant causes global mortality. One effective treatment is utilize cardiovascular implantable devices (cIMDs) with multi‐functional cell sensing and monitoring features that have potential manipulate hyperplasia disorders as well provide therapy. However, batteries a fixed capacity entail high‐risk surgeries for battery‐replacement, which health hazards imposes significant costs patients. This review accesses comprehensive power solutions cIMDs, from conventional state‐of‐the‐art energy harvesters wireless transfer (WPT) schemes. In particular, WPT has great eliminate percutaneous wires overcome frequent battery removal. Here, fundamentals, efficiency, antenna design miniaturization, operating frequencies in various schemes are presented. Moreover, loss attenuation bio‐safety standard (specific absorption rate) implants also considered envelope. addition, data transmission external internal milieu (and vice versa) along different modulation demodulation techniques investigated. The last advanced cIMDs in‐vivo vitro research illustrated throughout. Finally, specifications future systems highlighted.

Language: Английский

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Energy harvesting solutions for railway transportation: A comprehensive review

Renewable Energy, Journal Year: 2022, Volume and Issue: 202, P. 56 - 87

Published: Nov. 18, 2022

Language: Английский

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