Stretchable and Energy‐Efficient Heating Carbon Nanotube Fiber by Designing a Hierarchically Helical Structure

Liu, Peng; Li, Yiming; Xu, Yifan; Bao, Luke; Wang, Lie; Pan, Jian; Zhang, Zhitao; Sun, Xuemei; Peng, Huisheng

doi:10.1002/smll.201702926

Cited by 61 publications

(52 citation statements)

References 41 publications

(57 reference statements)

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“…The change in the electrical properties of these yarns with the applied strain make them a promising candidate as a wearable sensing device; however, if these yarns are used as fiber electrode or an interconnection within electronic devices, the devices may suffer severe performance degradation. To avoid the degradation of the electrical conductivity of the yarn during stretching, various structural designs such as twisted, helical, buckling, and winding structure have been explored for 1D stretchable electrode . Because the structured yarns dominantly use the deformation of their structures rather than intrinsic stretching of the yarns, the contacts between conductive materials in the yarns can be effectively maintained, in turn minimizing the change in the electrical conductivity of the yarns during stretching.…”

Section: Fabrication Techniques For 1d Stretchable Electrodesmentioning

confidence: 99%

Recent Advances in 1D Stretchable Electrodes and Devices for Textile and Wearable Electronics: Materials, Fabrications, and Applications

et al. 2019

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applications, and smart sportswear. [13][14][15][16][17] In this regard, stretchable and wearable electronic devices in the 1D form, which can be directly integrated into daily clothes without any inconsistency, are greatly promising for future wearable electronics. [18][19][20][21][22][23] In addition, the hierarchical property of the fibrous structures (fiber: a small and short piece of a strand, filament: a long strand, yarn: an intertwined 1D structure of fibers or filaments, and fabric: a flexible substance consisting of a network of yarns) makes 1D electronic devices and systems remarkably suitable for advanced wearable electronics. The 1D assemblies including the 1D electronic devices also have unique characteristics appropriate to wearable electronics such as softness, stretchability, breathability, and high tolerance to damage. [3] Stretchability, in particular, is one of the most important properties for practical wearable applications because smart clothes or textiles including such 1D electronic devices should be covered on soft and curved human body. [24] Furthermore, some parts of clothes are frequently stretched and deformed during natural movements in daily life, thereby increasing the importance of stretchability of 1D electronic devices. Although many of existing clothes have achieved certain stretchability with only rigid yarns through specific textile structures such as woven or knitted structures, the stretchability resulting from such textile structures is insufficient to cover high stretchability desired in specific applications. For example, high stretchability of textiles is highly required for sportswear in order to achieve a form-fitting property, high comfortability, and elasticity during exercise. For such purpose, various stretchable yarns such as spandex have been widely used in textile industry. These properties of textiles are also essential for various sensing applications of wearable and textile electronic, resulting that high stretchability should be achieved for the 1D electronic devices. [25,26] In addition, the high stretchability resulting from the use of stretchable conductive yarns can successfully prevent a bagging issue of smart textiles which degrades stability and reproducibility of the smart textiles. For achieving the 1D stretchable electronic devices and systems, the development of 1D stretchable electrodes such as conductive yarns or filaments with high electrical conductivity and stretchability is basically essential above other things. In this regard, recent advances toward developing various high-performance Research on wearable electronic devices that can be directly integrated into daily textiles or clothes has been explosively grown holding great potential for various practical wearable applications. These wearable electronic devices strongly demand 1D electronic devices that are light-weight, weavable, highly flexible, stretchable, and adaptable to comport to frequent deformations during usage in daily life. To this end, the development of 1D electrodes wit...

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Section: Fabrication Techniques For 1d Stretchable Electrodesmentioning

confidence: 99%

Recent Advances in 1D Stretchable Electrodes and Devices for Textile and Wearable Electronics: Materials, Fabrications, and Applications

et al. 2019

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show abstract

Section: System Integrationmentioning

confidence: 99%

“…Shown in Figure d, CNT fibers assisted by cotton thread were successfully treated with a commercial rapier loom. The copper wire with cotton thread (40 S/2) was used as warp and the CNT fiber with cotton thread (ration of 1/2) was used as weft . The resulting fabric exhibited a large heating rate.…”

Section: System Integrationmentioning

confidence: 99%

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A Route Toward Smart System Integration: From Fiber Design to Device Construction

et al. 2019

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Fiber is a symbol of human civilization, being ubiquitous but obscure in society over most of history. Fiber has been revived upon the advent of fiber‐based electronic devices in the past two decades. This is due to its desirable lightweight, flexible, and conformable characteristics, which enable it to play a fundamental role in the electronic and information era. Numerous fiber‐based electronic devices have sprung up in energy conversion, energy storage, sensing, actuation, etc. A possibility is thereby conceived that they can be integrated into smart systems compatible with the human body, consisting of biotic fiber‐based organs and tissues, which possess similar but more advanced functions. However, the design of mono‐/multifibers, the construction of fiber‐based devices, and the integration of these smart systems represent great challenges in fundamental understanding and practical implementation. A systematic review of the current state of the art with respect to the design and fabrication of electronic fiber materials, construction of fiber‐based devices, and integration of smart systems is presented. In addition, limitations of current fiber‐based devices and perspectives are explored toward potential and promising smart integration.

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“…Smart fibers that mimic the structures in nature have most recently been highlighted for enhancing thermal storage and absorption in combinations with Joule heaters or natural heat sources such as the human body. A hierarchical structure that mimics the helical structure of the classic thermal insulation material, wool, was developed using CNT ( Figure 15) [130]. Ribbons of CNT were first synthesized, dried, twisted, and collected onto a spool to produce CNT fibers.…”

Section: Thermal Management Based On Biomimetic Control Over Fabric Smentioning

confidence: 99%

Functional Fibers, Composites and Textiles Utilizing Photothermal and Joule Heating

Park

2020

Polymers

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This review focuses on the mechanism of adjusting the thermal environment surrounding the human body via textiles. Recently highlighted technologies for thermal management are based on the photothermal conversion principle and Joule heating for wearable electronics. Recent innovations in this technology are described, with a focus on reports in the last three years and are categorized into three subjects: (1) thermal management technologies of a passive type using light irradiation of the outside environment (photothermal heating), (2) those of an active type employing external electrical circuits (Joule heating), and (3) biomimetic structures. Fibers and textiles from the design of fibers and textiles perspective are also discussed with suggestions for future directions to maximize thermal storage and to minimize heat loss.

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Stretchable and Energy‐Efficient Heating Carbon Nanotube Fiber by Designing a Hierarchically Helical Structure

Cited by 61 publications

References 41 publications

Recent Advances in 1D Stretchable Electrodes and Devices for Textile and Wearable Electronics: Materials, Fabrications, and Applications

Recent Advances in 1D Stretchable Electrodes and Devices for Textile and Wearable Electronics: Materials, Fabrications, and Applications

A Route Toward Smart System Integration: From Fiber Design to Device Construction

Functional Fibers, Composites and Textiles Utilizing Photothermal and Joule Heating

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