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

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 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.

Language: Английский

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Autonomous Tilt Sensing System Utilizing Optimized Fabrication‐Enhanced Nanocomposite Triboelectric Nanogenerator for Full‐Spherical Coverage

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Electronic tilt sensors are extensively utilized in modern industrial applications such as construction, automotive, aerospace, and robotics. However, self‐powered with full‐spherical coverage remains underexplored. This study introduces an autonomous peak‐detection sensing (APTS) system utilizing a triboelectric nanogenerator (TS‐TENG) interdigitated electrodes (IDEs) ball mechanism. The TS‐TENG integrates spinel CuCo 2 O 4 (CCO) nanopillars on polymethyl methacrylate (PMMA) sub‐microfibrous structure. optimized CCO@PMMA‐based TENG exhibits significant enhancement performance. open‐circuit voltage increases from 176.23 to 391.82 V, 2.22‐fold increase, the short‐circuit current 29.40 91.87 µA, 3.12‐fold increase compared bare PMMA‐based TENG. Additionally, under load resistance of MΩ, generates maximum power 20.39 mW. APTS is successfully validated through both simulation experimental approaches. By implementing counting mechanism track types numbers positive negative peaks, achieves omnidirectional coverage. work not only elucidates optimization process CCO@PMMA composite influence CCO triboelectricity but also underscores potential TENGs 360° sensors.

Language: Английский

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Sustainable Energy Harvesting Techniques for Underwater Aquatic Systems with Multi-Source and Low-Energy Solutions

Sustainable Computing Informatics and Systems, Journal Year: 2025, Volume and Issue: unknown, P. 101126 - 101126

Published: April 1, 2025

Language: Английский

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Towards Nonlinear Magnetic Rotating Pendula for Low-Frequency Weak Vibration Energy Harvesting

Energies, Journal Year: 2025, Volume and Issue: 18(8), P. 2058 - 2058

Published: April 17, 2025

Energy harvesting from ambient vibrations has received significant attention as an alternative renewable, clean energy source for microelectronic devices in diverse applications such wearables and environmental monitoring. However, typical remote environments exhibit ultra-low frequencies with variations uncertainty leading to operation away resonance severe underperformance terms of power output. Pendulum-based harvesters offer a promising solution these issues, particularly when designed parametric resonant response driven displacement the pendulum pivot. Parametric excitation been shown trigger fast rotational motion VEH that is beneficial generation necessary space utilization. Nevertheless, low-frequency typically come at very weak amplitudes, fact establishes design barriers traditional gravitational pendula are used rotary harvesting. In this paper, we propose novel concept utilizes permanent magnet arrays establish dynamics. Extensive investigation restoring torque proposed magnetic conducted analytical tools FEA verification. The resulting oscillator exhibits frequency tuning decoupled gravity adjustable via circularly arranged fields, increased flexibility concurrently amplitude tuning. Numerical integration nondimensional equation performed system’s parameter identify impact on regions triggering excitation. Finally, theoretical case study numerically investigated device constrained within 20 cm3, showing multi-fold improvement achieved density over 600 μW/cm3/g2/Hz broad range driving amplitudes low 1.1 Hz 0.2 g.

Language: Английский

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Recent Progress in Energy Harvesting Technologies for Self‐Powered Wearable Devices: The Significance of Polymers

Polymers for Advanced Technologies, Journal Year: 2025, Volume and Issue: 36(4)

Published: April 1, 2025

ABSTRACT The growing demand for self‐powered wearable electronic devices in healthcare, fitness, and entertainment has driven significant advancements energy harvesting technologies. This review explores the latest progress mechanisms that enable sustainable autonomous devices, with a particular emphasis on role of polymers their development. Polymers offer unique combination mechanical flexibility, biocompatibility, lightweight properties, making them ideal applications. systematically categorizes major technologies into three primary mechanisms: thermoelectric generators (TEGs), piezoelectric harvesters (PEHs), triboelectric nanogenerators (TENGs). Each section provides an in‐depth discussion working principles, material innovations, fabrication techniques, applications these systems. Beyond fundamental mechanisms, discusses hybrid systems integrate multiple sources to maximize power generation ensure continuous device operation. storage technologies, such as flexible supercapacitors micro‐batteries, is also highlighted address intermittency challenges ambient sources. Despite progress, remain improving conversion efficiency, enhancing durability, optimizing system integration real‐world identifies key research directions overcoming challenges, including advanced materials engineering, miniaturization artificial intelligence‐driven management strategies. findings presented this provide valuable insights development next‐generation paving way efficient electronics seamlessly daily life.

Language: Английский

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Sensing Technologies for Outdoor/Indoor Farming

Biosensors, Journal Year: 2024, Volume and Issue: 14(12), P. 629 - 629

Published: Dec. 19, 2024

To face the increasing requirement for grains as global population continues to grow, improving both crop yield and quality has become essential. Plant health directly impacts yield, making development of plant health-monitoring technologies Variable sensing outdoor/indoor farming based on different working principles have emerged important tools monitoring plants their microclimates. These can detect factors such water content, volatile organic compounds (VOCs), hormones released by plants, well environmental conditions like humidity, temperature, wind speed, light intensity. achieve comprehensive multidimensional assessment, multimodal sensors been developed. Non-invasive approaches are also gaining attention, leveraging biocompatible flexible without interference with its natural growth. Furthermore, wireless data transmission is crucial real-time efficient farm management. Reliable power supplies these systems vital ensure continuous operation. By combining wearable intelligent analysis remote monitoring, modern agriculture refined management, resource optimization, sustainable production, offering innovative solutions food security challenges.

Language: Английский

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