Fabrication of core-sheath nanoyarn via touchspinning and its application in wearable piezoelectric nanogenerator

Gao, Huipu; Asheghali, Darya; Yadavalli, Nataraja Sekhar; Pham, Minh Thien; Nguyen, Tho Duc; Minko, Sergiy; Sharma, Suraj

doi:10.1080/00405000.2019.1678558

Cited by 19 publications

(18 citation statements)

References 42 publications

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“…143 Gao et al reported a method to produce a nanofiber filament using the touch spinning method. 130 A schematic of this method is shown in Figure 8c. It produces a piezoelectric yarn with a nanofibrous core−sheathsee Figure 9e.…”

Section: Electrospinning Of Yarnmentioning

confidence: 99%

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Recent Progress of Wearable Piezoelectric Nanogenerators

Zhang

Fan

Wang

et al. 2021

ACS Appl. Electron. Mater.

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Considering the limited supply of fossil fuel, pollution, problems with chemical batteries, and the many potential applications of wearable electronics, the development of more effective lightweight energy sources is important. Piezoelectric nanogenerators (PENGs) can convert a mechanical energy into an electric energy and sometimes may even have the potential to replace conventional chemical batteries. The combination of conventional textiles with PENGs leads to so-called "smart textiles", in other words, textile-based PENGs. More generally, textile-based PENGs can endow conventional textiles with special functionalities such as energy conversion and online health testing (using sensors), while the used conventional textiles can provide platforms for their deployment. This paper reviews the research progress of textile-based PENGs, discusses the classification of piezoelectric materials and electrode materials, and summarizes ways to improve their piezoelectric performance. In addition, several preparation methods of different device structures of textile-based PENGs are compared. Finally, the most important obstacles for the application of textile-based PENGs are addressed at the end of this paper. This compact but relatively comprehensive review will not only aid researchers to better understand textile-based PENGs but also attract the attention of related fields and perhaps inspire more exciting research and progress of wearable textile-based PENGs.

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Section: Electrospinning Of Yarnmentioning

confidence: 99%

Section: Piezoelectric Textilesmentioning

confidence: 99%

Recent Progress of Wearable Piezoelectric Nanogenerators

Zhang

Fan

Wang

et al. 2021

ACS Appl. Electron. Mater.

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“…Moreover, a touch‐spinning technique was adopted to fabricate the core–shell structure PVDF nanoyarn PENG without additional treatment, with an aim to increase the β‐phase content of the PVDF. [ 44 ]…”

Section: Wearable Biomechanical Energy Harvestersmentioning

confidence: 99%

“…Moreover, a touch-spinning technique was adopted to fabricate the core-shell structure PVDF nanoyarn PENG without additional treatment, with an aim to increase the β-phase content of the PVDF. [44] Even though PVDF polymers and their copolymers have accounted for a majority of the fiber-type PENGs fabricated in the past decade, piezoelectric ceramic materials have also presented useful PENG applications. However, the brittleness of piezoelectric ceramics makes it difficult to use them alone for fabricating flexible and stretchable PENGs.…”

Section: Wearable Piezoelectric Nanogenerators (Pengs)mentioning

confidence: 99%

Recent Advances in Sustainable Wearable Energy Devices with Nanoscale Materials and Macroscale Structures

Kim

Pyun

Lee

et al. 2021

Adv Funct Materials

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Quick progress in the field of smart wearable devices requires self-sustainable power systems to help the devices execute the desired functions within a sufficient time scale. Because these devices have started to become small, light, compliant, complex, and multifunctional, it is challenging to provide them with the large amounts of energy necessary for their operation. Thus, future multifunctional wearable devices should not only incorporate mechanical flexibility for conformal contacts but also include sustainable energy units for stable operation. Hence, strategies for designing the assembly of nanoscale materials in macroscale-structured devices have attracted intense interest, with an aim to achieve mechanically deformable and sustainable wearable devices while exploiting the recent advances in nanomaterials and device fabrication. This review highlights the recent progress in nanomaterialenabled and structured energy harvesting, energy storage, and hybrid devices for powering sustainable wearables. In particular, one summarizes describe biomechanical energy harvesters (piezoelectric nanogenerators and triboelectric nanogenerators), solar energy harvesters (solar cells), biothermal energy harvesters (thermoelectric nanogenerators), energy storage devices (batteries and supercapacitors), and hybrid devices and focus on the use of nanomaterials and device configurations in 1D, 2D, and 3D structures, with an aim to shape the future demand for self-sustainable wearables.

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“…Electrospun nanofiber materials have shown great application prospects in the field of functional textiles due to their ultra-fine fiber size, flexible material selectivity, structural controllability, and easy surface functionalization [ 1 ]; however, they generally have weak mechanical properties, and their nanofiber aggregates have poor structural stability, which severely restricts their practical applications as functional textiles [ 2 , 3 ]. In recent years, how to achieve the high-efficiency and controllable preparation of micro-nano fiber assemblies with stable structures, excellent mechanical properties, and long-term functions has become a popular research topic [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Electrospinning Mechanism of Nanofiber Yarn and Its Multiscale Wrapping Yarn

et al. 2021

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To analyze the feasibility of electrospinning nanofiber yarn using a wrapping yarn forming device, electrospun nanofiber-wrapped yarns and multiscale yarns were prepared by self-made equipment. The relationship between the surface morphology and properties of yarn and its preparation process was studied. The process parameters were adjusted, and it was found that some nanofibers formed Z-twisted yarns, while others showed exposed cores. To analyze the forming mechanism of electrospun nanofiber-wrapped yarn, the concept of winding displacement difference in the twisted yarn core A was introduced. The formation of nanofiber-wrapped structural yarns was discussed using three values of A. The starting point of each twist was the same position when A = 0 with a constant corner angle β. However, the oriented nanofiber broke or was pulled out from the gripping point when it was twisted, and it appeared disordered. The forming process of electrospun nanofiber-wrapped yarn displayed some unique phenomena, including the emission of directional nanofibers during collection, fiber non-continuity, and twist angle non-uniformity. The conclusions of this research have theoretical and practical value to guide the industrial preparation of nanofiber yarns and their wrapped yarns.

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Fabrication of core-sheath nanoyarn via touchspinning and its application in wearable piezoelectric nanogenerator

Cited by 19 publications

References 42 publications

Recent Progress of Wearable Piezoelectric Nanogenerators

Recent Progress of Wearable Piezoelectric Nanogenerators

Recent Advances in Sustainable Wearable Energy Devices with Nanoscale Materials and Macroscale Structures

Electrospinning Mechanism of Nanofiber Yarn and Its Multiscale Wrapping Yarn

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