Structure‐Foldable and Performance‐Tailorable PI Paper‐Based Triboelectric Nanogenerators Processed and Controlled by Laser‐Induced Graphene

Advanced Science, Journal Year: 2024, Volume and Issue: 11(28)

Published: May 15, 2024

Abstract Laser‐induced graphene (LIG) technology has provided a new manufacturing strategy for the rapid and scalable assembling of triboelectric nanogenerators (TENG). However, current LIG‐based TENG commonly rely on polymer films, e.g., polyimide (PI) as both friction material carbon precursor electrodes, which limit structural diversity performance escalation due to its incapability folding creasing. Using specialized PI paper composed randomly distributed fibers substantially enhance foldability, this work creates type TENG, are structurally foldable stackable, tailorable. First, by systematically investigating laser power‐regulated single‐unit open‐circuit voltage can be effectively improved. By further exploiting process, multiple units assembled together form multi‐layered structures continuously expand from 5.3 34.4 V cm −2 , increase 1 16. Last, fully utilizing unique structure performance, representative energy‐harvesting smart‐sensing applications demonstrated, including smart shoe recognize running motions power LEDs, leaf thermometer wind, matrix sensor writing trajectories, well glove different objects.

Language: Английский

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Stretchable ionogels: Recent advances in design, toughening mechanisms, material properties and wearable devices applications

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151850 - 151850

Published: May 1, 2024

Language: Английский

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Jellyfish‐inspired Polyurea Ionogel with Mechanical Robustness, Self‐Healing, and Fluorescence Enabled by Hyperbranched Cluster Aggregates

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 23, 2024

Ionogels are promising for soft iontronics, with their network structure playing a pivotal role in determining performance and potential applications. However, simultaneously achieving mechanical toughness, low hysteresis, self-healing, fluorescence using existing structures is challenging. Drawing inspiration from jellyfish, we propose novel hierarchical crosslinking design situ formation of hyperbranched cluster aggregates (HCA) to fabricate polyurea ionogels overcome these challenges. Leveraging the disparate reactivity isocyanate groups, induce HCA through competing reactions, enhancing toughness imparting clustering-triggered emission ionogel. This synergy between supramolecular interactions plasticizing effect ionic liquid leads reduced hysteresis Furthermore, incorporation NCO-terminated prepolymer dynamic oxime-urethane bonds (NPU) enables self-healing enhances stretchability. Our investigations highlight significant influence on ionogel performance, showcasing robustness including high strength (3.5 MPa), exceptional (5.5 MJ m

Language: Английский

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Stretchable [2]rotaxane-bridged MXene films applicable for electroluminescent devices

Science Advances, Journal Year: 2025, Volume and Issue: 11(10)

Published: March 7, 2025

Titanium carbide (Ti 3 C 2 T X ) MXene has prominent mechanical properties and electrical conductivity. However, fabricating high-performance macroscopic films is challenging, as weak interlayer interactions limit their performance. Here, we introduce [2]rotaxane, a mechanically interlocked molecule, to enhance films. Compared pure (fracture strain: 4.6%, toughness: 0.6 MJ/m ), [2]rotaxane-bridged (RBM) achieve record-high strain (20.0%) toughness (11.9 with only 3.6% [2]rotaxane by weight. Additionally, RBM endure 500 stretch cycles (0 15% strain) stable reversible resistance alterations, making them ideal for stretchable electrodes. Notably, enable electroluminescent devices reliable operation under 20% elongation customizable luminescent patterns. This innovative use of molecules cross-link platelets advances other two-dimensional materials in electronics.

Language: Английский

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Ultra-Stretchable, Tough, and Self-Healing Polyurethane with Tunable Microphase Separation for Flexible Wearable Electronics

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110908 - 110908

Published: March 1, 2025

Language: Английский

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Advances in magnetic-assisted triboelectric nanogenerators: structures, materials and self-sensing systems

International Journal of Extreme Manufacturing, Journal Year: 2024, Volume and Issue: 6(5), P. 052007 - 052007

Published: June 25, 2024

Abstract Triboelectric nanogenerators (TENG), renowned for their remarkable capability to harness weak mechanical energy from the environment, have gained considerable attention owing cost-effectiveness, high output, and adaptability. This review provides a unique perspective by conducting comprehensive in-depth analysis of magnetically assisted TENGs that encompass structures, materials, self-powered sensing systems. We systematically summarize diverse functions magnetic assistance TENGs, including system stiffness, components hybrid electromagnetic-triboelectric generator, transmission, interaction forces. In material domain, we incorporation nano-composites along with ferrofluid-based TENG microstructure verification, which also been summarized based on existing research. Furthermore, delve into research progress physical quantity human-machine interface in magnetic-assisted TENGs. Our highlights extends beyond repulsive suction forces under field, thereby playing multifaceted roles improving output performance environmental adaptability Finally, present prevailing challenges offer insights future trajectory development.

Language: Английский

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3D printed stretchable coaxial fiber grid for dual-mode multifunctional tactile sensor array

Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109895 - 109895

Published: June 15, 2024

Language: Английский

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Flame-retardant textile based triboelectric nanogenerators for energy harvesting and high-temperature sensing

Nano Energy, Journal Year: 2024, Volume and Issue: 131, P. 110210 - 110210

Published: Sept. 5, 2024

Language: Английский

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Extremely durable electrical impedance tomography–based soft and ultrathin wearable e-skin for three-dimensional tactile interfaces

Science Advances, Journal Year: 2024, Volume and Issue: 10(38)

Published: Sept. 20, 2024

In the rapidly evolving field of human-machine interfaces (HMIs), high-resolution wearable electronic skin (e-skin) is essential for user interaction. However, traditional array-structured tactile require increased number interconnects, while soft material–based computational methods have limited functionalities. Here, we introduce a thin and e-skin interfaces, offering high mapping capabilities through electrical impedance tomography (EIT). We employed an organic/inorganic hybrid structure with simple, cost-effective fabrication processes, ensuring flexibility stability. The conductive stretchable sensing domain includes micropatterned multiwall carbon nanotube elastomer composite. skin-like interface effectively detects pressure-induced conductivity changes, superior spatiotemporal resolution fewer interconnects (pixel/interconnects >57). This EIT-based discerns external pressures to submillimeter degree vertical deformations few hundred micrometers. It sustains stable functions under damage or environmental confirming its suitability persistent use. demonstrate practical applications in real-time HMIs: handwriting recognition drone control.

Language: Английский

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Humidity‐Resistant Wearable Triboelectric Nanogenerator Utilizing a Bound‐Water‐Rich Zwitterionic Hydrogel With Microphase‐Separated Domains

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 29, 2024

Abstract Triboelectric nanogenerators (TENGs) represent an effective approach for transforming mechanical energy into electrical power, making them suitable wearable electronic applications. Hydrogels as TENGs electrodes are common, but their use direct triboelectric layers remains insufficiently explored. Here, a novel zwitterionic monomer 3‐{1‐[6‐(hydroxymethyl)‐2‐methyl‐3,8‐dioxo‐9‐aza‐4,7‐dioxadodec‐1‐en‐12‐yl]imidazol‐3‐ium‐3‐yl}propane‐1‐sulfonate (VNIPS) is synthesized in combination with acrylic acid (AA) and sulfobetaine methacrylate (SBMA) to create double‐network hydrogel. The hydrogel developed using solvent‐exchange process that facilitated the creation of microphase‐separated domains, notablely increasing its strength (211.9 kPa, 472.3%), conductivity (0.6 mS cm −1 ), anti‐freezing capability (−18.3 °C). In addition, hydrogel's hydrophilic groups interacted water molecules, reducing charge loss humid conditions. When employed positive layer, hydrogel‐based achieved substantial density 456 µC m − 2 output power 464 mW , while maintaining steady open‐circuit voltage (V oc ) 97 V, 92% retention under 80% relative humidity. Moreover, strong adhesion biocompatibility make it applications, such motion sensing Morse code communication. This work demonstrates feasibility hydrogels materials, providing new strategy creating efficient, humidity‐resistant harvesters.

Language: Английский

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