Iontronic pressure sensor with high sensitivity over ultra-broad linear range enabled by laser-induced gradient micro-pyramids

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: June 1, 2023

Abstract Despite the extensive developments of flexible capacitive pressure sensors, it is still elusive to simultaneously achieve excellent linearity over a broad range, high sensitivity, and ultrahigh resolution under large preloads. Here, we present programmable fabrication method for microstructures integrate an ultrathin ionic layer. The resulting optimized sensor exhibits sensitivity 33.7 kPa −1 linear range 1700 kPa, detection limit 0.36 Pa, 0.00725% 2000 kPa. Taken together with rapid response/recovery repeatability, applied subtle pulse detection, interactive robotic hand, ultrahigh-resolution smart weight scale/chair. proposed approaches design toolkit from this work can also be leveraged easily tune performance varying target applications open up opportunities create other iontronic sensors.

Language: Английский

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Flexible pressure sensors via engineering microstructures for wearable human-machine interaction and health monitoring applications

iScience, Journal Year: 2022, Volume and Issue: 25(4), P. 104148 - 104148

Published: March 23, 2022

Flexible pressure sensors capable of transducing stimuli into electrical signals have drawn extensive attention owing to their potential applications for human-machine interaction and healthcare monitoring. To meet these application demands, engineering microstructures in the are an efficient way improve key sensing performances, such as sensitivity, linear range, response time, hysteresis, durability. In this review, we provide overview recent advances fabrication high-performance flexible via microstructures. The implementation mechanisms strategies including micropatterned, porous, fiber-network, multiple systematically summarized. with fields wearable interaction,

Language: Английский

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Maximizing Electron Channels Enabled by MXene Aerogel for High-Performance Self-Healable Flexible Electronic Skin

ACS Nano, Journal Year: 2023, Volume and Issue: 17(2), P. 1393 - 1402

Published: Jan. 9, 2023

Among the increasingly popular miniature and flexible smart electronics, two-dimensional materials show great potential in development of electronics owing to their layered structures outstanding electrical properties. MXenes have attracted much attention excellent hydrophilicity metallic conductivity. However, limited interlayer spacing tendency for self-stacking lead changes electron channels under external pressure, making it difficult exploit surface metal We propose a strategy rapid gas foaming construct tunable MXene aerogels. aerogels with rich network generate maximized facilitating effective utilization properties MXene; this forms self-healable pressure sensor sensing such as high sensitivity (1,799.5 kPa–1), fast response time (11 ms), good cycling stability (>25,000 cycles). This has applications human body detection, human–computer interaction, self-healing, remote monitoring, distribution identification. The channel design provides simple, efficient, scalable method effectively conduction 2D materials.

Language: Английский

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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

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A flexible and ultrasensitive interfacial iontronic multisensory sensor with an array of unique “cup-shaped” microcolumns for detecting pressure and temperature

Nano Energy, Journal Year: 2022, Volume and Issue: 105, P. 108012 - 108012

Published: Nov. 13, 2022

Language: Английский

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A review on flexible wearables – Recent developments in non-invasive continuous health monitoring

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 366, P. 114993 - 114993

Published: Jan. 2, 2024

Language: Английский

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Multifunctional Iontronic Sensor Based on Liquid Metal-Filled Ho llow Ionogel Fibers in Detecting Pressure, Temperature, and Proximity

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(5), P. 7485 - 7495

Published: Jan. 25, 2023

Fiber-based pressure/temperature sensors are highly desired in wearable electronics because of their natural advantages good breathability and easy integrability. However, it is still a great challenge to fabricate reliable sensitive fiber-based via scalable facile strategy. Herein, novel iontronic sensor with excellent pressure- temperature-sensing capabilities designed by assembling two crossed hollow porous ionogel fibers filled liquid metal. Serving as pressure sensor, high detection resolution (1.16 Pa), sensitivity 13.30 kPa-1 (0-2 kPa), wide range (∼207 kPa) realized owing its hierarchical structure the selection deformable electrodes. As temperature exhibits 25.99% °C-1 (35-40 °C), 0.02 °C, repeatability reliability. On basis these sensing capabilities, as-prepared can detect not only signals varied from weak pulse large joint movements but also proximity different objects. Furthermore, large-area fiber array be easily woven for acquiring mapping intuitively distinguish location, magnitude, shape loaded object. This work provides universal strategy design fiber-shaped electronics.

Language: Английский

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Recent progress in textile-based triboelectric force sensors for wearable electronics

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(2)

Published: March 20, 2023

Language: Английский

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Recent progress in flexible micro-pressure sensors for wearable health monitoring

Nanoscale Advances, Journal Year: 2023, Volume and Issue: 5(12), P. 3131 - 3145

Published: Jan. 1, 2023

In recent years, flexible micro-pressure sensors have been used widely in wearable health monitoring applications due to their excellent flexibility, stretchability, non-invasiveness, comfort wearing and real-time detection. According the working mechanism of sensor, it can be classified as piezoresistive, piezoelectric, capacitive triboelectric types. Herein, an overview for is presented. The physiological signaling body motions contain a lot status information. Thus, this review focuses on these fields. Additionally, contents sensing mechanism, materials performance are introduced detail. Finally, we predict future research directions sensors, discuss challenges practical applications.

Language: Английский

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Finger–coding intelligent human–machine interaction system based on all–fabric ionic capacitive pressure sensors

Nano Energy, Journal Year: 2023, Volume and Issue: 116, P. 108783 - 108783

Published: Aug. 9, 2023

Language: Английский

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