Repurposed Leather with Sensing Capabilities for Multifunctional Electronic Skin

Zou, Binglin; Chen, Yuanyuan; Liu, Yihan; Xie, Ruijie; Du, Qinjie; Zhang, Tao; Shen, Yun-Dun; Zheng, Bing; Li, Sheng; Wu, Jiansheng; Zhang, Weina; Huang, Wei; Huang, Xin; Huo, Fengwei

doi:10.1002/advs.201801283

Cited by 143 publications

(102 citation statements)

References 51 publications

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“…Recently, resistive tactile sensors with enhancement in both sensitivity and linearity are reported based on the structural design . A typical structure of these sensors consists of two opposing films coated with conductive materials, and they exploit a change in contact resistance between the films.…”

Section: Introductionmentioning

confidence: 99%

Multi‐Layered, Hierarchical Fabric‐Based Tactile Sensors with High Sensitivity and Linearity in Ultrawide Pressure Range

Pyo

Lee

Kim

et al. 2019

Adv Funct Materials

161

147

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Resistive tactile sensors based on changes in contact area have been extensively explored for a variety of applications due to their outstanding pressure sensitivity compared to conventional tactile sensors. However, the development of tactile sensors with high sensitivity in a wide pressure range still remains a major challenge due to the trade‐off between sensitivity and linear detection range. Here, a tactile sensor comprising stacked carbon nanotubes and Ni‐fabrics is presented. The hierarchical structure of the fabrics facilitates a significant increase in contact area between them under pressure. Additionally, a multi‐layered structure that can provide more contact area and distribute stress to each layer further improves the sensitivity and linearity. Given these advantages, the sensor presents high sensitivity (26.13 kPa−1) over a wide pressure range (0.2–982 kPa), which is a significant enhancement compared with the results obtained in previous studies. The sensor also exhibits outstanding performances in terms of response time, repeatability, reproducibility, and flexibility. Furthermore, meaningful applications of the sensor, including wrist‐pulse‐signal analysis, flexible keyboards, and tactile interface, are successfully demonstrated. Based on the facile and scalable fabrication technique, the conceptually simple but powerful approach provides a promising strategy to realize next‐generation electronics.

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Section: Introductionmentioning

confidence: 99%

Multi‐Layered, Hierarchical Fabric‐Based Tactile Sensors with High Sensitivity and Linearity in Ultrawide Pressure Range

Pyo

Lee

Kim

et al. 2019

Adv Funct Materials

161

147

View full text Add to dashboard Cite

show abstract

“…Components used in the mechanical sensors can be divided into active materials and supporting materials. Metal‐based materials (eg, liquid metals, metal particles, and NWs), carbon‐based materials (eg, carbon black [CB], CNT, and graphene), conductive polymers (eg, PPy, poly(3,4‐ethylene dioxythiophene):poly(styrene sulfonate) [PEDOT:PSS], and hydrogel), and other materials (eg, MOF, MXene) have been used as the active materials.…”

Section: Skin‐inspired Mechanical Sensorsmentioning

confidence: 99%

Physical sensors for skin‐inspired electronics

Zhang

Wang

et al. 2019

InfoMat

198

143

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Skin, the largest organ in the human body, is sensitive to external stimuli.In recent years, an increasing number of skin-inspired electronics, including wearable electronics, implantable electronics, and electronic skin, have been developed because of their broad applications in healthcare and robotics.Physical sensors are one of the key building blocks of skin-inspired electronics. Typical physical sensors include mechanical sensors, temperature sensors, humidity sensors, electrophysiological sensors, and so on. In this review, we systematically review the latest advances of skin-inspired mechanical sensors, temperature sensors, and humidity sensors. The working mechanisms, key materials, device structures, and performance of various physical sensors are summarized and discussed in detail. Their applications in health monitoring, human disease diagnosis and treatment, and intelligent robots are reviewed. In addition, several novel properties of skin-inspired physical sensors such as versatility, self-healability, and implantability are introduced. Finally, the existing challenges and future perspectives of physical sensors for practical applications are discussed and proposed. K E Y W O R D Selectronics skin, flexible electronics, humidity sensors, mechanical sensors, temperature sensors, wearable sensors

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“…User‐interactive devices change their color, transparency, and shape in response to external stimuli (i.e., strain, [ 1–3 ] pressure, [ 4–6 ] chemical, [ 7,8 ] light, [ 9 ] and temperature [ 10 ] ), which enables users to be visually aware of the stimuli. These visual changes provide a versatile platform for devices such as electronic skin (e‐skin), [ 11 ] smart windows, [ 12,13 ] and soft robotics [ 14 ] to interact with the user under widely varying stimuli.…”

Section: Figurementioning

confidence: 99%

User‐Interactive Thermotherapeutic Electronic Skin Based on Stretchable Thermochromic Strain Sensor

et al. 2020

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User‐interactive electronic skin (e‐skin) with a distinguishable output has enormous potential for human–machine interfaces and healthcare applications. Despite advances in user‐interactive e‐skins, advances in visual user‐interactive therapeutic e‐skins remain rare. Here, a user‐interactive thermotherapeutic device is reported that is fabricated by combining thermochromic composites and stretchable strain sensors consisting of strain‐responsive silver nanowire networks on surface energy‐patterned microwrinkles. Both the color and heat of the device are easily controlled through electrical resistance variation induced by applied mechanical strain. The resulting monolithic device exhibits substantial changes in optical reflectance and temperature with durability, rapid response, high stretchability, and linear sensitivity. The approach enables a low‐expertise route to fabricating dynamic interactive thermotherapeutic e‐skins that can be used to effectively rehabilitate injured connective tissues as well as to prevent skin burns by simultaneously accommodating stretching, providing heat, and exhibiting a color change.

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Repurposed Leather with Sensing Capabilities for Multifunctional Electronic Skin

Cited by 143 publications

References 51 publications

Multi‐Layered, Hierarchical Fabric‐Based Tactile Sensors with High Sensitivity and Linearity in Ultrawide Pressure Range

Multi‐Layered, Hierarchical Fabric‐Based Tactile Sensors with High Sensitivity and Linearity in Ultrawide Pressure Range

Physical sensors for skin‐inspired electronics

User‐Interactive Thermotherapeutic Electronic Skin Based on Stretchable Thermochromic Strain Sensor

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