Technology Roadmap for Flexible Sensors

ACS Nano, Journal Year: 2023, Volume and Issue: 17(6), P. 5211 - 5295

Published: March 9, 2023

Humans rely increasingly on sensors to address grand challenges and improve quality of life in the era digitalization big data. For ubiquitous sensing, flexible are developed overcome limitations conventional rigid counterparts. Despite rapid advancement bench-side research over last decade, market adoption remains limited. To ease expedite their deployment, here, we identify bottlenecks hindering maturation propose promising solutions. We first analyze achieving satisfactory sensing performance for real-world applications then summarize issues compatible sensor-biology interfaces, followed by brief discussions powering connecting sensor networks. Issues en route commercialization sustainable growth sector also analyzed, highlighting environmental concerns emphasizing nontechnical such as business, regulatory, ethical considerations. Additionally, look at future intelligent sensors. In proposing a comprehensive roadmap, hope steer efforts towards common goals guide coordinated development strategies from disparate communities. Through collaborative efforts, scientific breakthroughs can be made sooner capitalized betterment humanity.

Language: Английский

---

Soft Capacitive Pressure Sensors: Trends, Challenges, and Perspectives

ACS Nano, Journal Year: 2022, Volume and Issue: 16(3), P. 3442 - 3448

Published: March 9, 2022

Soft pressure sensors are critical components of e-skins, which playing an increasingly significant role in two burgeoning fields: soft robotics and bioelectronics. Capacitive (CPS) popular given their mechanical flexibility, high sensitivity, signal stability. After decades rapid development, e-skins based on CPS able to achieve human-skin-like softness sensitivity. However, there remain major roadblocks the way for practical application CPS: decay sensitivity with increased coupled response between in-plane stretch out-of-plane pressure. In addition existing strategies building porous and/or dielectric constant dielectrics, any other promising methods overcome those bottlenecks? Are further considerations widespread deployment e-skins? This perspective aims shed some light topics.

Language: Английский

---

Polymer Nanocomposite Dielectrics: Understanding the Matrix/Particle Interface

ACS Nano, Journal Year: 2022, Volume and Issue: 16(9), P. 13612 - 13656

Published: Sept. 15, 2022

Polymer nanocomposite dielectrics possess exceptional electric properties that are absent in the pristine dielectric polymers. The matrix/particle interface polymer is suggested to play decisive roles on bulk material performance. Herein, we present a critical overview of recent research advances and important insights understanding interfacial characteristics dielectrics. primary experimental strategies state-of-the-art characterization techniques for resolving local property-structure correlation dissected depth, with focus capabilities each strategy or technique other approaches cannot compete with. Limitations evaluated as well. In last section this Review, summarize compare three from multiple aspects point out their advantages disadvantages, issues, possible schemes be established. Finally, authors' personal viewpoints regarding challenges existing presented, potential directions study proposed future research.

Language: Английский

---

Age of Flexible Electronics: Emerging Trends in Soft Multifunctional Sensors

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)

Published: Jan. 23, 2024

Abstract With the commercialization of first‐generation flexible mobiles and displays in late 2010s, humanity has stepped into age electronics. Inevitably, soft multifunctional sensors, as essential components next‐generation electronics, have attracted tremendous research interest like never before. This review is dedicated to offering an overview latest emerging trends sensors their accordant future development (R&D) directions for coming decade. First, key characteristics predominant target stimuli are highlighted. Second, important selection criteria introduced. Next, materials/structures identified. Specifically, R&D these envisaged based on trends, namely i) decoupling multiple stimuli, ii) data processing, iii) skin conformability, iv) energy sources. Finally, challenges potential opportunities discussed, new insights prospects fast‐emerging technology.

Language: Английский

---

Beyond Skin Pressure Sensing: 3D Printed Laminated Graphene Pressure Sensing Material Combines Extremely Low Detection Limits with Wide Detection Range

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(28)

Published: April 16, 2022

Abstract Artificial intelligence robots predicted in sci‐fi movies have attracted increasing attention recent years, and much effort has been devoted to improving the sensing manipulation performance of robots. The development robotic skins capable handling complex external pressure environments is highly desired for intelligent However, this remains a major challenge due lack materials that can combine extremely low detection limits wide ranges. Inspired by synergistic strategy dual mechanoreceptors human skin, here, design 3D printing laminated graphene consisting both ultrathin‐ thick‐walled cellular microstructures are demonstrated. Based on such graphene, piezoresistive sensor achieves limit 1 Pa, range (1 Pa–400 kPa), high sensitivities 3.1 0.22 kPa −1 regions Pa–13 13−400 kPa, respectively, graphene‐based skin enables quantitative pressure/weight detection. This be easily integrated into flexible arrays enable mapping spatial distribution pressure, showing great potential applications as electronic physiological signal monitoring, human–machine interfaces.

Language: Английский

---

Electrospun fiber-based flexible electronics: Fiber fabrication, device platform, functionality integration and applications

Progress in Materials Science, Journal Year: 2023, Volume and Issue: 137, P. 101139 - 101139

Published: May 5, 2023

Language: Английский

---

Advances in flexible sensors for intelligent perception system enhanced by artificial intelligence

InfoMat, Journal Year: 2023, Volume and Issue: 5(5)

Published: March 23, 2023

Abstract Intelligent perception means that with the assistance of artificial intelligence (AI)‐motivated brain, flexible sensors achieve ability memory, learning, judgment, and reasoning about external information like human brain. Due to superiority machine learning (ML) algorithms in data processing intelligent recognition, systems possess match or even surpass systems. However, built‐in these need work on dynamic irregular surfaces, inevitably affecting precision fidelity acquired data. In recent years, strategy introducing developed functional materials innovative structures into has made some progress toward above challenges, blessing ML algorithms, accurate various scenarios have been achieved. Here, most representative for constructing are comprehensively reviewed, research based is further summarized, intersection two expected unlock new opportunities next‐stage AI development. image

Language: Английский

---

Recent progress in flexible capacitive sensors: Structures and properties

Nano Materials Science, Journal Year: 2022, Volume and Issue: 5(3), P. 265 - 277

Published: Jan. 5, 2022

The future intelligent era that will be brought about by 5G technology can well predicted. For example, the connection between humans and smart wearable devices become increasingly more intimate. Flexible pressure sensors have received much attention as a part of this process. Nevertheless, there is lack complete detailed discussion on recent research status capacitive composed polymer composites. Therefore, article mainly discuss key concepts, preparation methods main performance flexible sensors. concept processing "toolbox" used to review developmental dielectric layer revealed in highly cited literature from past five years. are categorized into types processing: primary secondary. Using these categories, structure discussed. Their influence final sensing behavior also addressed. Recent developments electrode systematically reviewed. Finally, results above summarized development trends

Language: Английский

---

Highly Sensitive and Wide-Range Flexible Bionic Tactile Sensors Inspired by the Octopus Sucker Structure

ACS Applied Nano Materials, Journal Year: 2022, Volume and Issue: 5(8), P. 11028 - 11036

Published: Aug. 11, 2022

Recently, flexible tactile sensors have been widely concerned in many fields, including healthcare monitoring devices and wearable electronics. However, the fabrication of capacitive bionic with a wide linear sensing range high sensitivity is major difficulty. A sensor based on octopus sucker microstructure that improves performance by constructing biomimetic body good was proposed this study. The effect characteristic parameters structure studied simulations experiments, optimized. Experimental results demonstrate octopus-inspired has 0.636 kPa–1 (8 Pa-500 kPa). Moreover, rapid response time (∼40 ms), excellent repeatability, outstanding durability (>6000 cycles), making it reliable platform for human movements manipulator grasping objects. This study provides significant potential innovative applications future intelligent robotics electronic skins.

Language: Английский

---

Recent advanced freestanding pseudocapacitive electrodes for efficient capacitive deionization

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 324, P. 124577 - 124577

Published: July 11, 2023

Language: Английский

---