Highly Stretchable and Conductive Copper Nanowire Based Fibers with Hierarchical Structure for Wearable Heaters

Cheng, Yih–Shyang; Zhang, Hange; Wang, Ranran; Wang, Xiao; Zhai, Haitao; Wang, Tao; Jin, Qinghui; Sun, Jing

doi:10.1021/acsami.6b09293

Cited by 149 publications

(132 citation statements)

References 42 publications

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“…Metal nanoparticles, [44,62] electroactive polymers, [32] conductive polymers, [17] ionic liquids (ILs), [34,63] and carbon-based materials [64] are highlights of the group. Metal nanoparticles, [44,62] electroactive polymers, [32] conductive polymers, [17] ionic liquids (ILs), [34,63] and carbon-based materials [64] are highlights of the group.…”

Section: Nanocomposite Materials Used In Wearable Actuator Applicationsmentioning

confidence: 99%

“…Researchers have selected wearable actuator materials from a broader material group. Metal nanoparticles, [44,62] electroactive polymers, [32] conductive polymers, [17] ionic liquids (ILs), [34,63] and carbon-based materials [64] are highlights of the group. Silver nanowire transferred onto a polydimethylsiloxane (PDMS) film [18] has shown excellent stretchable heating properties.…”

Section: Nanocomposite Materials Used In Wearable Actuator Applicationsmentioning

confidence: 99%

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Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

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Powered by market hype, trends among youth, and enormous funds, wearable technology has propelled itself as one of the most discussed topics in the field during past few years. A number of different companies representing all throughout the world have already entered into the market with hundreds of different products like smart watches, fitness trackers, smart garments, and even different smart medical attachments.Together with the evolution of digital health care, the wearable electronics field has evolved rapidly during the past few years and is expected to be expanded even further within the first few years of the next decade. As the next stage of wearables is predicted to move toward integrated wearables, nanomaterials and nanocomposites are in the spotlight of the search for novel concepts for integration. In addition, the conversion of current devices and attachment-based wearables into integrated technology may involve a significant size reduction while retaining their functional capabilities. Nanomaterialbased wearable sensors have already marked their presence with a significant distinction while nanomaterial-based wearable actuators are still at their embryonic stage. This review looks into the contribution of nanomaterials and nanocomposites to wearable technology with a focus on wearable sensors and actuators.

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Section: Nanocomposite Materials Used In Wearable Actuator Applicationsmentioning

confidence: 99%

Section: Nanocomposite Materials Used In Wearable Actuator Applicationsmentioning

confidence: 99%

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

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“…The low resistance of copper-based soft conductors enables an immediate generation of heat when a suitable bias is applied, therefore they are applied as wearable heaters for thermotherapy or maintaining warmth [88,109,176,177] (Table S6). In order to make an air-permeable elastic heating patch, stretchable heating fibers were made by incorporating CuNWs into polyester yarns with a protection layer of silicone rubber.…”

Section: Wearable Heatersmentioning

confidence: 99%

“…These fibers were weaved into the heating fabric, which was integrated into the smart personal heating system controlled by a microcontroller chip (Fig. 16a) [176]. The heating fibers were able to be heated from 20 to 57°C within 20 s at a bias of 3 V. Infrared (IR) thermal image clearly shows a working wearable heater made of the heating fabric under the low voltage of 1.8 V (Fig.…”

Section: Wearable Heatersmentioning

confidence: 99%

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Copper nanomaterials and assemblies for soft electronics

Yang

Zhu

2019

Sci. China Mater.

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Soft electronics that can simultaneously offer electronic functions and the capability to be deformed into arbitrary shapes are becoming increasingly important for wearable and bio-implanted applications. The past decade has witnessed tremendous progress in this field with a myriad of achievements in the preparation of soft electronic conductors, semiconductors, and dielectrics. Among these materials, copper-based soft electronic materials have attracted considerable attention for their use in flexible or stretchable electrodes or interconnecting circuits due to their low cost and abundance with excellent optical, electrical and mechanical properties. In this review, we summarize the recent progress on these materials with the detailed discussions of the synthesis of copper nanomaterials, approaches for their assemblies, strategies to resist the ambient corrosion, and their applications in various fields including flexible electrodes, sensors, and other soft devices. We conclude our discussions with perspectives on the remaining challenges to make copper soft conductors available for more widespread applications.

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Versatile, High‐Power, Flexible, Stretchable Carbon Nanotube Sheet Heating Elements Tolerant to Mechanical Damage and Severe Deformation

Lee

Kim

et al. 2018

Adv Funct Materials

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A macroscopic carbon nanotube (CNT) sheet‐based heating element having flexible, stretchable, and damage‐tolerant features, and wide applicability in harsh environments, is introduced. Because of the intrinsic connection of extremely flexible CNT bundles throughout the sample by van der Waals interactions without use of a binder, the electrical resistance variation of the CNT sheet on elastomer heating element as a function of strain is completely suppressed to some extent, even when stretched under up to 400% strain, which guarantees electrical stability under severe mechanical deformation. In addition, the spatial uniformity of the heat generated from the microaligned CNT bundles reduces the temperature variation inside the sample, which also guarantees thermal stability and operation at a higher average temperature. Such exceptional performance is achieved by the passivation of the elastomer layer on the CNT sheets. Furthermore, the mechanical robustness of this flexible, stretchable heating element is demonstrated by stable heater operation, even when the heating element is damaged. In addition, this design concept of CNT sheet on elastomer is extended to transparent flexible heaters and electric‐thermochromic windows.

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Highly Stretchable and Conductive Copper Nanowire Based Fibers with Hierarchical Structure for Wearable Heaters

Cited by 149 publications

References 42 publications

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Copper nanomaterials and assemblies for soft electronics

Versatile, High‐Power, Flexible, Stretchable Carbon Nanotube Sheet Heating Elements Tolerant to Mechanical Damage and Severe Deformation

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