Super‐Stretchable, Anti‐Freezing, Anti‐Drying Organogel Ionic Conductor for Multi‐Mode Flexible Electronics

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(41)

Published: June 9, 2023

Abstract Due to their intrinsic flexibility, tunable conductivity, multiple stimulus‐response, and self‐healing ability, ionic conductive hydrogels have drawn significant attention in flexible/wearable electronics. However, challenges remain because traditional inevitably faced the problems of losing flexibility conductivity inner water loss when exposed ambient environment. Besides, inside hydrogel will freeze at icing temperatures, making device hard fragile. As a promising alternative, organogels attracted wide they can, some extent, overcome above drawbacks. Herein, kind organogel conductor (MOIC) by self‐polymerization reaction is involved, which super stretchable, anti‐drying, anti‐freezing. Meanwhile, it can still maintain high mechanical stability after alternately loading/unloading strain 600% for 600 s (1800 cycles). Using this MOIC, high‐performance triboelectric nanogenerator (TENG) constructed (MOIC‐TENG) harvest small energy even MOIC electrode underwent an extremely low temperature. In addition, multifunctional sensors (strain sensor, piezoresistive tactile sensor) are realized monitor human motions real time, recognize different materials effect. This study demonstrates candidate material electronics such as electronic skin, flexible sensors, human‐machine interfaces.

Language: Английский

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Supramolecular gels – a panorama of low-molecular-weight gelators from ancient origins to next-generation technologies

Soft Matter, Journal Year: 2023, Volume and Issue: 20(1), P. 10 - 70

Published: Dec. 11, 2023

Supramolecular gels, self-assembled from low-molecular-weight gelators (LMWGs), have a long history and bright future.

Language: Английский

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Ultra-stretchable and anti-freezing ionic conductive hydrogels as high performance strain sensors and flexible triboelectric nanogenerator in extreme environments

Nano Energy, Journal Year: 2024, Volume and Issue: 126, P. 109633 - 109633

Published: April 21, 2024

Language: Английский

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Gel-Based Triboelectric Nanogenerators for Flexible Sensing: Principles, Properties, and Applications

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: May 31, 2024

Abstract The rapid development of the Internet Things and artificial intelligence technologies has increased need for wearable, portable, self-powered flexible sensing devices. Triboelectric nanogenerators (TENGs) based on gel materials (with excellent conductivity, mechanical tunability, environmental adaptability, biocompatibility) are considered an advanced approach developing a new generation sensors. This review comprehensively summarizes recent advances in gel-based TENGs sensors, covering their principles, properties, applications. Based requirements working mechanism characteristic advantages gels introduced. Design strategies performance optimization hydrogel-, organogel-, aerogel-based systematically summarized. In addition, applications human motion sensing, tactile health monitoring, human–machine interaction, other related fields Finally, challenges discussed, feasible proposed to guide future research.

Language: Английский

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An overview of flexible sensors from ionic liquid-based gels

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 174, P. 117662 - 117662

Published: March 23, 2024

Language: Английский

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Neural Network‐Inspired Polyurea Ionogel with Mechanical Robustness, Low Hysteresis, and High Transparency for Soft Iontronics

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(37)

Published: March 7, 2024

Abstract Concurrently achieving mechanical robustness, low hysteresis, and high transparency are essential for ionogels to enhance their reliability satisfy the requirements in soft electronics. Fabricating comprising these characteristics presents a considerable challenge. Herein, inspired by structure of neural networks, new strategy situ formation dense urea moieties aggregated domains is proposed achieve topology‐tailoring polyurea ionogels. Initially, leveraging pronounced disparity reactivity isocyanate (─NCO) groups between isophorone diisocyanate (IPDI) NCO‐terminated prepolymer (PPGTD), IPDI preferentially reacts with deblocked trifunctional latent curing agents, resulting domains. Thereafter, interconnected via PPGTD establish polymer networks which ionic liquid uniformly dispersed, forming like Attributed this unique design strategy, ionogel demonstrates remarkable properties, including strength (0.6–2.4 MPa), excellent toughness (0.9–4.3 MJ m −3 ), hysteresis (6.6–11.6%), (>92%), along enhanced fatigue puncture resistance. Furthermore, exhibit outstanding versatility, enabling strain sensors, flexible electroluminescence devices, nanogenerators. This contributes unparalleled combinatory catering diverse demands iontronics.

Language: Английский

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One-step synthesis of functional slippery lubricated coating with substrate independence, anti-fouling property, fog collection, corrosion resistance, and icephobicity

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 664, P. 228 - 237

Published: March 7, 2024

Language: Английский

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Design strategies and recent advancements of solid‐state supercapacitor operating in wide temperature range

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(6)

Published: Feb. 27, 2024

Abstract Solid‐state supercapacitors (SSCs) are emerging as one of the promising energy storage devices due to their high safety, superior power density, and excellent cycling life. However, performance degradation safety issues under extreme conditions main challenges for practical application. With expansion human activities, such space missions, polar exploration, so on, investigation SSC with wide temperature tolerance, sustainability is highly desired. In this review, effects on systematically illustrated clarified, including properties electrolyte, ion diffusion, reaction dynamics supercapacitor. Subsequently, we summarize recent advances in wide‐temperature‐range SSCs from aspect electrolyte modification, electrode design, interface adjustment between especially critical concerns ionic conductivity stability. end, a perspective presented, expecting promote application harsh conditions.

Language: Английский

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Stretchable ionic conductive gels for wearable human-activity detection

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151231 - 151231

Published: April 17, 2024

Language: Английский

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Cellulose nanofibers/liquid metal hydrogels with high tensile strength, environmental adaptability and electromagnetic shielding for temperature monitoring and strain sensors

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 348, P. 122788 - 122788

Published: Sept. 23, 2024

Language: Английский

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