Highly Breathable and Stretchable Strain Sensors with Insensitive Response to Pressure and Bending

Liu, Ze-Kun; Zheng, Yan; Jin, Lu; Chen, Kaili; Zhai, Heng; Huang, Qiyao; Chen, Zhongda; Yi, Yangpeiqi; Umar, Muhammad Naveed; Xu, Lulu; Li, Gang; Song, Qingwen; Yue, Pengfei; Li, Yang; Zheng, Zijian

doi:10.1002/adfm.202007622

Cited by 121 publications

(113 citation statements)

References 28 publications

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Section: Strategies To Engineer Conductors Permeable Flexible and Stretchablementioning

confidence: 99%

“…[ 34 ] In this method, the interfacial polymer grafted on the fiber surface was utilized as an anchoring layer to ensure that the metal could be firmly adhered onto the fiber substrate and enhance the mechanical durability upon large deformation. [ 35 ] Liu et al [ 36 ] recently reported a breathable and stretchable strain sensor that was constructed by embroidering the elastic yarns and PAMD‐developed conductive yarns (Figure 2f). Taking advantage of the high electrical conductivity (≈0.23 Ω cm −1 ) and stability of the Cu‐coated conductive yarns achieved by the PAMD approach, the as‐embroidered strain sensor revealed outstanding sensitivity to tensile strain (GF = 49.5 in the strain of 0−100%) and durability (3000 stretching cycles).…”

Section: Strategies To Engineer Conductors Permeable Flexible and Stretchablementioning

confidence: 99%

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Permeable Conductors for Wearable and On‐Skin Electronics

2021

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The booming development of wearable and on‐skin electronics has driven increased interest in flexible and stretchable conductors, which serve as the indispensable building blocks for these electronic devices. However, conductors for such soft electronics are mostly fabricated with impermeable elastic thin films, which not only affect the long‐term wearing comfort but also limit the device's multifunctionality. In recent years, permeable conductors, conducting materials that are fabricated based on breathable materials and structures with deformability, have shown great promise for applications in wearable and skin‐mountable electronics. Herein, a specific perspective on the development of permeable conductors that can simultaneously display conductivity, flexibility or stretchability, and permeability to air, moisture, and liquid is provided. Key design considerations of permeable conductors, as well as the state‐of‐the‐art strategies to endow flexible and stretchable conductors with permeability, are discussed. Finally, key challenges and future directions of permeable conductors and electronic devices are discussed along with the analysis of possible solutions.

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Section: Strategies To Engineer Conductors Permeable Flexible and Stretchablementioning

confidence: 99%

Section: Strategies To Engineer Conductors Permeable Flexible and Stretchablementioning

confidence: 99%

Permeable Conductors for Wearable and On‐Skin Electronics

2021

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“…In addition to some of the properties discussed in detail above, the reply ability [98], crosstalk problems [99], linearity [100], and anti-interference [101] of TMSs are also key factors that determine the overall performance and practical applicability of the sensor. For example, it is highly desirable that the sensing response (resistance, etc.)…”

Section: Performancementioning

confidence: 99%

Textile-Based Mechanical Sensors: A Review

et al. 2021

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Innovations related to textiles-based sensors have drawn great interest due to their outstanding merits of flexibility, comfort, low cost, and wearability. Textile-based sensors are often tied to certain parts of the human body to collect mechanical, physical, and chemical stimuli to identify and record human health and exercise. Until now, much research and review work has been carried out to summarize and promote the development of textile-based sensors. As a feature, we focus on textile-based mechanical sensors (TMSs), especially on their advantages and the way they achieve performance optimizations in this review. We first adopt a novel approach to introduce different kinds of TMSs by combining sensing mechanisms, textile structure, and novel fabricating strategies for implementing TMSs and focusing on critical performance criteria such as sensitivity, response range, response time, and stability. Next, we summarize their great advantages over other flexible sensors, and their potential applications in health monitoring, motion recognition, and human-machine interaction. Finally, we present the challenges and prospects to provide meaningful guidelines and directions for future research. The TMSs play an important role in promoting the development of the emerging Internet of Things, which can make health monitoring and everyday objects connect more smartly, conveniently, and comfortably efficiently in a wearable way in the coming years.

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“…The basic mechanism for operating the strain sensors falls within the fabrication of conductive networks and their regulated conductive responses with respect to applied strains [33,34]. Several conducting polymer composites, conductive hybrid networks, functionalized composites, co-polymeric systems, 2D nanostructures, structural modifications, and nanofibrous architectural strategies are moving progressively towards the attainment of crucial characteristics in strain and pressure sensors [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

et al. 2021

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The Conducting of polymers belongs to the class of polymers exhibiting excellence in electrical performances because of their intrinsic delocalized π- electrons and their tunability ranges from semi-conductive to metallic conductive regime. Conducting polymers and their composites serve greater functionality in the application of strain and pressure sensors, especially in yielding a better figure of merits, such as improved sensitivity, sensing range, durability, and mechanical robustness. The electrospinning process allows the formation of micro to nano-dimensional fibers with solution-processing attributes and offers an exciting aspect ratio by forming ultra-long fibrous structures. This review comprehensively covers the fundamentals of conducting polymers, sensor fabrication, working modes, and recent trends in achieving the sensitivity, wide-sensing range, reduced hysteresis, and durability of thin film, porous, and nanofibrous sensors. Furthermore, nanofiber and textile-based sensory device importance and its growth towards futuristic wearable electronics in a technological era was systematically reviewed to overcome the existing challenges.

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Highly Breathable and Stretchable Strain Sensors with Insensitive Response to Pressure and Bending

Cited by 121 publications

References 28 publications

Permeable Conductors for Wearable and On‐Skin Electronics

Permeable Conductors for Wearable and On‐Skin Electronics

Textile-Based Mechanical Sensors: A Review

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

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