Recent advancements in solid–liquid triboelectric nanogenerators for energy harvesting and self-powered applications

Chatterjee, Subhodeep; Burman, Snigdha Roy; Khan, Imran; Saha, Subhajit; Choi, Dukhyun; Lee, Sang‐Min; Lin, Zong‐Hong

doi:10.1039/d0nr04326e

Cited by 65 publications

(51 citation statements)

References 98 publications

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“…The liquid‐based TENG was designed to generate electrical outputs under ultrasound excitation, aiming to provide a source of wireless electrical stimulation 123 . This type of liquid‐based TENGs is still under development but has been suggested as an alternative to significantly enhance the electrical output as wearable electronics 124,125 …”

Section: Hydrogel Overviewmentioning

confidence: 99%

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Hydrogel‐based triboelectric nanogenerators: Properties, performance, and applications

Torres

Troncoso

De-la-Torre

2021

Intl J of Energy Research

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Summary The development of triboelectric nanogenerators (TENGs) in 2012 revolutionized the vision of environmental energy harvesting. Nowadays, TENG assembly, working mode, and material selection are investigated continuously in order to obtain high‐performance and long‐lasting devices. Hydrogels are flexible and stretchable water‐swollen 3D polymer networks, which can be tailored to conduct electricity and render outstanding mechanical properties. Hydrogels have been used to develop novel flexible wearable TENGs. Here, we review the current knowledge concerning hydrogel‐based TENGs, including an overview of relevant hydrogel characteristics, hydrogel‐based TENG performance, and their practical applications. The single‐electrode TENG working mode is the most popular in hydrogel‐based TENGs as they can be easily attached and stretched for biomechanical energy harvesting. Hydrogel‐based TENGs have demonstrated to be capable of delivering high electrical output (250‐400 V, ≥10 μA) and being robust enough for devices that last for several months. Biomechanical energy sensing and harvesting, smart farming, biomedical, and human–machine control interfaces are investigated as potential applications of hydrogel‐based TENGs. Interestingly, energy harvesting from human motion is of particular interest for this type of TENG due to its outstanding stretchability, strength, and additional physical properties, such as self‐healing ability. In most cases, the devices are capable of powering small electronics entirely from harvested biomechanical energy. Biomedical applications involved wound healing acceleration driven by TENG‐powered electrical stimuli and disease monitoring, including implantable devices. Despite showing promising electrical performance, controlling water evaporation is still challenging to maintain the mechanical and conductive properties of hydrogel‐based TENGs. On the other hand, fully biodegradable TENGs are largely unexplored, as well as many applications, such as blue energy harvesting, the internet of things, and others. The next steps in this line of research must focus on addressing the main challenges of hydrogel‐based TENGs and filling the application knowledge gaps.

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Section: Hydrogel Overviewmentioning

confidence: 99%

“…123 This type of liquidbased TENGs is still under development but has been suggested as an alternative to significantly enhance the electrical output as wearable electronics. 124,125…”

Section: Performance Of Hydrogel-based Tengsmentioning

confidence: 99%

Hydrogel‐based triboelectric nanogenerators: Properties, performance, and applications

Torres

Troncoso

De-la-Torre

2021

Intl J of Energy Research

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“…27 Moreover, PTFE contains the highly electronegative fluorine atoms, which attracts electron during contact with other material and thus increases the output performance during contact electrification. 24,45 Therefore, the films with the addition of PTFE particles show better output performance than the pristine PDMS film.…”

Section: Ptfe Wt% Effect On Energy Harvesting Performancementioning

confidence: 99%

Hybrid film for liquid‐solid contact‐based energy harvesting systems

Fuwad

Ryu

Jeon

et al. 2021

Intl J of Energy Research

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In the current digital era, portable low-power electronics have become an essential part of our daily life, from communication to traveling, surveillance, health care, education, and industry automation. However, conventional batteries cannot meet the requirements, such as portability and sustainability, of these systems; thus, new sustainable energy sources have been identified for energy harvesting for low-power electronics. Herein, we report a simple method to enhance the energy harvesting performance by combining two different conventional materials. Polydimethylsiloxane (PDMS) and polytetrafluoroethylene (PTFE) were mixed to fabricate a high-performance liquidsolid contact-based energy harvesting film. We optimized the energy harvesting performance by optimizing crucial factors such as the film thickness, charge transfer, and contact area as a function of the mixing ratio of PDMS and PTFE. Moreover, the addition of PTFE particles to PDMS changes the surface characteristics of the film by increasing the surface roughness and charge transfer performance and enhances the mechanical stability of the film. The device shows an output voltage of 50 V under normal operation with a power density of 67.5 μW/cm 2 across a 2 MΩ resistance, which can light up 20 LEDs and charge a 1-μF capacitor up to 22.5 V in under 40 seconds. These results show that the hybrid film can generate high-power output per area with conventional materials and can be used for energy harvesting for different electronic devices. Furthermore, this study will provide new insights to improve the performance of conventional materials for energy harvesting by optimizing their properties, such as thickness and surface morphology, by mixing different materials. K E Y W O R D S energy harvesting, hybrid film, liquid-solid contact system, PDMS/PTFE mixture 1 | INTRODUCTION Recent advancements in technology have revolutionized the world, especially the exponential growth in digital technology, which is leading the next-generation industrial revolution. The growth in the Internet of Things

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“…Recently, triboelectric nanogenerator (TENG) has been great attention as a promising electricity generation method for renewable energy sources, owing to their advantages such as easily fabricated device, cost-effectiveness, low weight, portability, and miniaturization [ 1 , 2 , 3 , 4 ]. Especially, TENGs offer an availability-to-applications as sensors and actuators by using the directly affecting of the output parameters onto the electrical signal [ 5 , 6 , 7 ]. Particularly, liquid-solid TENGs, which can harvests energy from diverse water resources, for example, water streams [ 8 ], raindrops [ 9 , 10 ], tidal waves [ 11 ], have been developed as self-powered sensors in streamflow, human motion, chemical property, and force/pressure [ 12 , 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Polyvinylidene Fluoride Surface Polarization Enhancement for Liquid-Solid Triboelectric Nanogenerator and Its Application

Ahn

2022

Polymers

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Liquid-solid triboelectric nanogenerator (TENG) has been great attention as a promising electricity generation method for renewable energy sources and self-powered electronic devices. Thus, enhancing TENG performance is a critical issue to be concerned for both practical and industrial applications. Hence in this study, a high-output liquid-solid TENG is proposed using a polyvinylidene fluoride surface polarization enhancement (PSPE) for self-powered streamflow sensing, which shows many advantages, such as adapt to the sensor energy requirement, multiple parameters sensing at the same time, eliminate the influence of ion concentration. The TENG based on PSPE film has the maximum power density of 15.6 mW/m2, which is increased by about 4.7 times compared to commercial PVDF-based TENG. This could be attributed to the increase of the dielectric constant and hydrophobic property of the PVDF film after the surface polarization enhancement process. Furthermore, the PSPE-TENG-driven sensor can simultaneously monitor both the physical and chemical parameters of the streamflow with high sensitivity and minimum error detection, which proves that the PSPE-TENG has enormous potential applications in self-powered streamflow sensing.

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Recent advancements in solid–liquid triboelectric nanogenerators for energy harvesting and self-powered applications

Abstract: The abundance of water on Earth provides a large window to utilize the mechanical energy within river currents and ocean waves. In this regard, hydropower harvesting through solid-liquid contact electrification...

Cited by 65 publications

References 98 publications

Hydrogel‐based triboelectric nanogenerators: Properties, performance, and applications

Hydrogel‐based triboelectric nanogenerators: Properties, performance, and applications

Hybrid film for liquid‐solid contact‐based energy harvesting systems

Polyvinylidene Fluoride Surface Polarization Enhancement for Liquid-Solid Triboelectric Nanogenerator and Its Application

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