Efficient Triboelectric Nanogenerators with on-demand Auxetic Structure achieving Deformation Matching in Wearable Devices

Nano Energy, Год журнала: 2025, Номер unknown, С. 110648 - 110648

Опубликована: Янв. 1, 2025

Язык: Английский

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A Bioinspired Gradient Curved Auxetic Honeycombs with Enhanced Energy Absorption

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110189 - 110189

Опубликована: Март 1, 2025

Язык: Английский

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Enhancing piezoelectric energy harvesters with rotating triangular auxetic structures

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110081 - 110081

Опубликована: Фев. 1, 2025

Язык: Английский

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Computational Prognosis and Efficiency Augmentation of Lead‐Free and Legacy Piezoelectric Bimorph Cantilevers for Low‐Power Energy Scavenging in IoT and Wearable Systems

Energy Technology, Год журнала: 2025, Номер unknown

Опубликована: Март 9, 2025

This study presents a simulation analysis of bimorph cantilever energy harvesters using both lead‐free and conventional piezoelectric materials, focusing on their efficiency for low‐power electromechanical transduction in IoT wearable systems. The materials examined include zinc oxide (ZnO), aluminum nitride (AlN), barium titanate (BaTiO 3 ), lithium niobate (LiNbO alongside such as lead zirconate (PZT5A), Pz21, polyvinylidene fluoride (PVDF), cadmium sulfide (CdS). Advanced simulations evaluate key performance parameters operational resonance frequency, load resistance optimization, W‐plate configurations, assessing influence conversion efficiency. Among the BaTiO demonstrates highest performance, achieving 0.18579 V, 1.61 μW mechanical power, 1.44 electrical power at 80 Hz. In comparison, material PZT5A peaks 71 Hz with 5.295 1183.11 1168.21 power. Under high acceleration (2 g), Pz21 shows superior output, delivering 9.22066 V 3542.52 exhibits optimal 100 kΩ, generating 0.91977 4.23 These findings emphasize critical role selection design optimization enhancing harvesting efficiency, offering sustainable solutions powering devices electronics.

Язык: Английский

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Unraveling the Energy‐Harvesting Performance of Antimony‐Doped BaTiO₃ Toward Self‐Powered on‐Body Wearable Impact Sensor

Energy Technology, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Harvesting ambient mechanical energy from the environment has gained immense interest due to its application in harvesting and active sensing. Herein, an ABO 3 class ferroelectric semiconducting material BaTiO nanoparticles are used, Antimony (Sb) is used as a dopant, which can be able enhance piezoelectric coefficient of higher level, leading increased energy‐harvesting performances. The fabricated antimony‐doped barium titanate [Sb‐doped designated (BST)] then blended with polydimethylsiloxane (PDMS) prepare composite film. Electrodes attached film on either side fabricate flexible nanogenerator (FCF‐PENG) device. FCF‐PENG device generates maximum electrical output peak‐to‐peak 28 V 1.5 μA, respectively. also shows good power density 1.6 mW m −2 at load resistance 80 MΩ. At last, real‐time impact sensor was employ wearable sensor. detects high low upon human collision tested within laboratory values recorded monitored indicator using ESP32 microcontroller ThingSpeak cloud. above analysis experiments proved that paves way toward sports healthcare rehabilitation Internet Things (IoT) devices soon.

Язык: Английский

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Auxetic metastructure-assisted yarn based Self-powered e-textiles for efficient energy harvesting and motion monitoring via contact-sliding-expansion strategy

Nano Energy, Год журнала: 2025, Номер unknown, С. 111058 - 111058

Опубликована: Апрель 1, 2025

Язык: Английский

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Analytical modeling and simulations of a piezoelectric nanorod for energy harvesting via Eringen’s differential model

Applied Physics A, Год журнала: 2024, Номер 130(10)

Опубликована: Сен. 24, 2024

Язык: Английский

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