Emerging Technologies of Flexible Pressure Sensors: Materials, Modeling, Devices, and Manufacturing

Advanced Functional Materials, Journal Year: 2019, Volume and Issue: 29(12)

Published: Jan. 30, 2019

Abstract As an important branch of wearable electronics, flexible pressure sensors have attracted extensive research owing to their wide range applications, such as human–machine interfaces and health monitoring. To fulfill the requirements for different new material design device fabrication strategies been developed in order manipulate mechanical electrical properties enhance performance. In this paper, progresses sensor development over recent years are selectively reviewed from a application perspective. First, overview fundamental working mechanism systematic approach is presented. Particularly, how theoretical modeling has used auxiliary tool achieve better sensing performance discussed. A number including interfaces, electronic skin monitoring, certain application‐driven functions, e.g., distribution visualization direction‐sensitive force detection, highlighted. Lastly, various advanced manufacturing methods realizing large‐scale introduced.

Language: Английский

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Flexible Neuromorphic Electronics for Computing, Soft Robotics, and Neuroprosthetics

Advanced Materials, Journal Year: 2019, Volume and Issue: 32(15)

Published: Sept. 26, 2019

Flexible neuromorphic electronics that emulate biological neuronal systems constitute a promising candidate for next-generation wearable computing, soft robotics, and neuroprosthetics. For realization, with the achievement of simple synaptic behaviors in single device, construction artificial synapses various functions sensing responding integrated to mimic complicated sensing, is prerequisite. Artificial have learning ability can perceive react events real world; these abilities expand applications toward health monitoring cybernetic devices future Internet Things. To demonstrate flexible successfully, it essential develop nerves replicating functionalities counterparts satisfying requirements constructing elements such as flexibility, low power consumption, high-density integration, biocompatibility. Here, progress addressed, from basic backgrounds including characteristics, device structures, mechanisms nerves, Finally, research directions are suggested this emerging area.

Language: Английский

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Toward a new generation of smart skins

Nature Biotechnology, Journal Year: 2019, Volume and Issue: 37(4), P. 382 - 388

Published: April 1, 2019

Language: Английский

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High‐Stretchability, Ultralow‐Hysteresis ConductingPolymer Hydrogel Strain Sensors for Soft Machines

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(32)

Published: June 21, 2022

Highly stretchable strain sensors based on conducting polymer hydrogel are rapidly emerging as a promising candidate toward diverse wearable skins and sensing devices for soft machines. However, due to the intrinsic limitations of low stretchability large hysteresis, existing cannot fully exploit their potential when used in or robotic systems. Here, sensor exhibiting both ultimate (300%) negligible hysteresis (<1.5%) is presented. This achieved through unique microphase semiseparated network design by compositing poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) nanofibers with poly(vinyl alcohol) (PVA) facile fabrication combining 3D printing successive freeze-thawing. The overall superior performances including stretchability, linearity, cyclic stability, robustness against mechanical twisting pressing systematically characterized. integration application such electronic further demonstrated measure various physiological signals, identify hand gestures, enable gripper objection recognition, remote control an industrial robot. work may offer hydrogels enhanced functionalities technical platforms intelligent

Language: Английский

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Flexible and Stretchable Capacitive Sensors with Different Microstructures

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(34)

Published: July 8, 2021

Abstract Recently, sensors that can imitate human skin have received extensive attention. Capacitive a simple structure, low loss, no temperature drift, and other excellent properties, be applied in the fields of robotics, human–machine interactions, medical care, health monitoring. Polymer matrices are commonly employed flexible capacitive because their high flexibility. However, volume is almost unchanged when pressure applied, they inherently viscoelastic. These shortcomings severely lead to hysteresis limit improvement sensitivity. Therefore, considerable efforts been improve sensing performance by designing different microstructures materials. Herein, two types based on forces discussed, including strain sensors. Currently, five used sensors, while four The advantages, disadvantages, practical values structures systematically elaborated. Finally, future perspectives for with aim providing guide advanced stretchable via ingenious human‐made microstructures.

Language: Английский

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