Highly stretchable fiber-based single-electrode triboelectric nanogenerator for wearable devices

Park, Ji Won; Choi, An-Seop; Lee, Chang Jun; Kim, Dogyun; Kim, Youn Tae

doi:10.1039/c7ra10285b

Cited by 66 publications

(46 citation statements)

References 25 publications

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“…By changing the encapsulating BDP material from PLGA to PVA, the in vivo working durability and degradation time decreased from weeks to days. Furthermore, the fiber-based TENG was made to be highly stretchable by changing the core fiber material to silicone rubber, [87,88] as shown in Figure 9e. In addition, other functional polymers such as shape memory polymers and www.advancedsciencenews.com self-healing polymers have also been used in fabricating novel TENG devices with functional properties.…”

Section: Micro/nanoenergy Sourcesmentioning

confidence: 99%

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Wang

Ding

et al. 2018

Advanced Energy Materials

1,359

884

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As the world is marching into the era of the internet of things (IoTs) and artificial intelligence, the most vital development for hardware is a multifunctional array of sensing systems, which forms the foundation of the fourth industrial revolution toward an intelligent world. Given the need for mobility of these multitudes of sensors, the success of the IoTs calls for distributed energy sources, which can be provided by solar, thermal, wind, and mechanical triggering/vibrations. The triboelectric nanogenerator (TENG) for mechanical energy harvesting developed by Z.L. Wang's group is one of the best choices for this energy for the new era, since triboelectrification is a universal and ubiquitous effect with an abundant choice of materials. The development of self‐powered active sensors enabled by TENGs is revolutionary compared to externally powered passive sensors, similar to the advance from wired to wireless communication. In this paper, the fundamental theory, experiments, and applications of TENGs are reviewed as a foundation of the energy for the new era with four major application fields: micro/nano power sources, self‐powered sensors, large‐scale blue energy, and direct high‐voltage power sources. A roadmap is proposed for the research and commercialization of TENG in the next 10 years.

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Section: Micro/nanoenergy Sourcesmentioning

confidence: 99%

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Wang

Ding

et al. 2018

Advanced Energy Materials

1,359

884

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“…They found that due to the use of composite, charge transfer capability increases. In 2017, Park et al 178 designed a nanogenerator of single electrode mode which can be applied to wearable products. They used silicon rubber as a negative dielectric material and the conductive thread was taken as an electrode.…”

Section: Mechanismmentioning

confidence: 99%

Vibration energy harvesting: A review

et al. 2019

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This study is based on energy harvesting from vibration and deals with the comparison of different techniques. In the present scenario, energy harvesting has drawn the attention of researchers due to a rapid increase in the use of wireless and small-scale devices. So, there is a huge thirst among scientists to develop permanent portable power sources. In the surroundings, a lot of unutilized energy is wasted which can be collected and used for power generation. Research works have been extensively carried out to develop energy harvesting devices catering to the increasing needs of being efficient and economical. Effective energy harvesting mainly depends on the design of the transducer. Different types of design techniques, material properties, and availability of energy harvesters are reviewed in this paper. The paper aims to explore the advantages and limitations of different energy harvesting principles, advances, and findings of the recent past. This study also discusses some of the key ideas for the enhancement of power output. This paper provides a broad view of the energy harvesting system to the learners, which will facilitate them to design more efficient energy harvesting devices by using different principles.

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“…As we all know, surface-morphology modification is a significant approach to enhance output performance of TENGs [36][37][38][39]. Most are purposed on increasing the available contact area and roughness of the surface.…”

Section: Introductionmentioning

confidence: 99%

Surface Morphology Analysis of Knit Structure-Based Triboelectric Nanogenerator for Enhancing the Transfer Charge

Niu

Miao

et al. 2020

Nanoscale Res Lett

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Harvesting waste biomechanical energy has provided a promising approach to improve the power supplement of wearable devices for extending usage life. Surface morphology is a significant factor for enhancing output performance of triboelectric nanogenerator; however, there is a limitation for evaluating the morphology of the surface and its impact on power generation. To evaluate the relationship between the surface morphology and transfer charge, there is a mathematical theory that is the fractal geometry theory that has been proposed to analyze the characteristic of irregular surface morphology. This theory provided a good understanding of the contact area and roughness of the surface. We have designed three categories of knit structures with cord appearance by using a flat knitting machine and analyzed their surface characteristics. Meanwhile, the geometric structures can be demonstrated through the fractal dimension for evaluating the generated output performance during contacting and separation. The present research exhibits that, with the increasing number of knitted units, the triboelectric power-generation performance continued to reduce due to the available contact area decreasing. After calculating the fractal dimension of different knit structures, the m*n rib structures show the high transfer charge when the fractal dimension is close to number one, especially the fractal dimension of the 1*1 rib structure that can reach 0.99. The fractal theory can be further used as an approach to evaluate the influence on the output performance of irregular surface morphology, unrelated to the uniform convex unit distraction. The result of this research also demonstrated the feasibility of a knitted-based triboelectric nanogenerator in scavenging biomechanical energy for powering portable electronics integrated into garments.

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Highly stretchable fiber-based single-electrode triboelectric nanogenerator for wearable devices

Cited by 66 publications

References 25 publications

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Triboelectric Nanogenerator: A Foundation of the Energy for the New Era

Vibration energy harvesting: A review

Surface Morphology Analysis of Knit Structure-Based Triboelectric Nanogenerator for Enhancing the Transfer Charge

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