Low-Cost, Scalable Fabrication of All-Fabric Piezoresistive Sensors via Binder-Free, In-Situ Welding of Carbon Nanotubes on Bicomponent Nonwovens

Advanced Fiber Materials, Journal Year: 2023, Volume and Issue: 6(1), P. 120 - 132

Published: Nov. 3, 2023

Language: Английский

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Patterning Techniques Based on Metallized Electrospun Nanofibers for Advanced Stretchable Electronics

Advanced Science, Journal Year: 2024, Volume and Issue: 11(26)

Published: April 30, 2024

Stretchable electronics have experienced remarkable progress, especially in sensors and wireless communication systems, attributed to their ability conformably contact with rough or uneven surfaces. However, the development of complex, multifunctional, high-precision stretchable faces substantial challenges, including instability at rigid-soft interfaces incompatibility traditional patterning technologies. Metallized electrospun nanofibers emerge as a promising conductive filler, offering exceptional stretchability, electrical conductivity, transparency, compatibility existing Here, this review focuses on fundamental properties, preparation processes, technologies, application scenarios composites based metallized nanofibers. Initially, it introduces fabrication processes advantages over alternative materials. It then highlights recent progress collector collection, vapor deposition masks, lithography, emphasizing role enhancing precision integration. Furthermore, shows broad applicability potential influence various fields through use sensors, semiconductor devices, intelligent healthcare solutions. Ultimately, seeks spark further innovation address prevailing challenges electronics, paving way for future breakthroughs dynamic field.

Language: Английский

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Leaf-inspired flexible NFMs with multi-conductive network for multifunctional integrated physical sensing, joule heating, and noncontact thermosensation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153485 - 153485

Published: June 25, 2024

Language: Английский

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Gradient Modulus Strategy for Alleviating Stretchable Electronic Strain Concentration

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

Published: Oct. 8, 2024

Abstract The island‐bridge structural design is a common strategy for imparting stretchability to flexible electronic devices. In this structure, the low modulus regions bear most of deformation, while rigid islands, which house components, undergo minimal deformation. However, due differences that can be several times or even orders magnitude larger, severe strain concentration occur at edges islands in high regions. This caused by constraints not only reduces soft substrate but also degrades mechanical performance interconnected structures, thereby significantly affecting overall stability device. Starting from finite element simulations, paper introduces gradient and optimizes geometric parameters, alleviating islands. Serpentine‐shaped circuits are then transferred with isolation, demonstrates better under 20% elongation compared traditional isolation strategies. addition, stretchable light emitting diode (LED) system has conventional strategy. suggests great potential maintaining systems.

Language: Английский

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Skin-inspired gradient ionogels induced by electric field for ultrasensitive and ultrafast-responsive multifunctional ionotronics

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 12(2), P. 1036 - 1046

Published: Nov. 28, 2023

Skin-inspired PIL ionogels with gradient microstructures were prepared by a one-step electric-field assisted photo-polymerization method. The ionotronic sensors show high sensitivity, fast response time, and can detect various motions.

Language: Английский

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Anisotropic flexible pressure/strain sensors: Recent advances, fabrication techniques, and future prospects

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158799 - 158799

Published: Dec. 1, 2024

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Three-dimensional Force Detection and Decoupling of a Flexible Tactile Sensor Array based on Porous Composite Piezoresistive Materials

Applied Mathematics and Nonlinear Sciences, Journal Year: 2024, Volume and Issue: 9(1)

Published: Jan. 1, 2024

Abstract Flexible piezoresistive sensor array has broad application prospects in human-computer interaction. However, due to the complexity of reality, it is difficult balance flexibility and perceptual ability process tactile perception. Presented herein a 4 × matrix (TS) that both pliable composed porous blend multi-walled carbon nanotubes (MWCNTs) polydimethylsiloxane (PDMS). This endowed with characteristics like pliability, consistency, acute sensitivity, which facilitate its adherence various shaped surface profiles. It boasts peak sensitivity 0.6 kPa−1 capable detecting pressures within spectrum from 0 640 kPa. An in-depth examination been undertaken assess TS array's response pressure, encompassing aspects such as hysteresis repeatability. In addition this, scanning system for constructed promptly detect, digitize, present pressure applied. A neural network model three-dimensional force decoupling established analyze real-time data emanating matrix, thereby enabling precise forecasting exerted upon array.

Language: Английский

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3D Printing‐Induced Hierarchically Aligned Nanocomposites With Exceptional Multidirectional Strain Sensing Performance

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

Abstract High‐performance sensors capable of detecting multidirectional strains are indispensable to understand the complex motions involved in flexible electronics. Conventional isotropic strain can only measure uniaxial deformations or single stimuli, hindering their practical application fields. The answer such challenge resides construction engineered anisotropic sensing structures. Herein, a hierarchically aligned carbon nanofiber (CNF)/polydimethylsiloxane nanocomposite sensor is developed by one‐step 3D printing. precisely controlled printing path and shear flow bring about highly filaments at macroscale orientated CNF network within each filament microscale. periodically along with inner successfully control distribution appearance microcracks, giving rise structural response external deformations. synergetic effect multiscale design leads distinguishable gauge factors 164 0.5 for applied loadings transverse alignment direction, leading an exceptional selectivity 3.77. real‐world applications multiaxial movement detector posture‐correction device further demonstrated. above findings propose new ideas manufacturing nanocomposites structure properties, verifying promising emerging wearable electronics soft robotics.

Language: Английский

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Recent progress in materials science and engineering towards flexible omnidirectional sensor

Materials Science and Engineering R Reports, Journal Year: 2024, Volume and Issue: 163, P. 100917 - 100917

Published: Dec. 6, 2024

Language: Английский

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Adaptive Fabrication of Electrochemical Chips with a Paste-Dispensing 3D Printer

Sensors, Journal Year: 2024, Volume and Issue: 24(9), P. 2844 - 2844

Published: April 29, 2024

Electrochemical (EC) detection is a powerful tool supporting simple, low-cost, and rapid analysis. Although screen printing commonly used to mass fabricate disposable EC chips, its mask relatively expensive. In this research, we demonstrated method for fabricating three-electrode chips using 3D of high-viscosity paste. The electrodes consisted two layers, with carbon paste printed over silver/silver chloride paste, the were baked at 70 °C 1 h. Engineering challenges such as bulging tubing, clogging nozzle, dripping, local accumulation solved by material selection tube process optimization in printing. good reversibility redox reactions through cyclic voltammetry tests, reliably detected heavy metal ions Pb(II) Cd(II) solutions differential pulse anodic stripping measurements. results indicate that optimizing can be obtained maskless flexible techniques lieu

Language: Английский

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