Metal‐Organic Framework Reinforced Highly Stretchable and Durable Conductive Hydrogel‐Based Triboelectric Nanogenerator for Biomotion Sensing and Wearable Human‐Machine Interfaces

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(48)

Published: July 17, 2023

Abstract Flexible triboelectric nanogenerators (TENGs) with multifunctional sensing capabilities offer an elegant solution to address the growing energy supply challenges for wearable smart electronics. Herein, a highly stretchable and durable electrode TENG is developed using ZIF‐8 as reinforcing nanofiller in hydrogel LiCl electrolyte. nanocrystals improve hydrogel's mechanical properties by forming hydrogen bonds copolymer chains, resulting 2.7 times greater stretchability than pure hydrogel. The encapsulated microstructured silicone layers that act materials prevent water loss from Optimized ZIF‐8‐based electrodes enhance output performance of through dynamic balance electric double (EDLs) during contact electrification. Thus, as‐fabricated delivers excellent power density 3.47 Wm – 2 , which 3.2 higher hydrogel‐based TENG. can scavenge biomechanical even at subzero temperatures small electronics serve self‐powered pressure sensors human‐machine interfaces (HMIs). nanocomposite also function biomotion sensor, detecting body movements high sensitivity. This study demonstrates significant potential utilizing reinforced TENGs harvesting sensor technology.

Language: Английский

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Soft Robotic Perception System with Ultrasonic Auto-Positioning and Multimodal Sensory Intelligence

ACS Nano, Journal Year: 2023, Volume and Issue: 17(5), P. 4985 - 4998

Published: March 3, 2023

Flexible electronics such as tactile cognitive sensors have been broadly adopted in soft robotic manipulators to enable human-skin-mimetic perception. To achieve appropriate positioning for randomly distributed objects, an integrated guiding system is inevitable. Yet the conventional based on cameras or optical exhibits limited environment adaptability, high data complexity, and low cost effectiveness. Herein, a perception with remote object multimodal cognition capability developed by integrating ultrasonic sensor flexible triboelectric sensors. The able detect shape distance reflected ultrasound. Thereby manipulator can be positioned position perform grasping, during which capture sensory information top profile, size, shape, hardness, material, etc. These are then fused deep-learning analytics, leading highly enhanced accuracy identification (∼100%). proposed presents facile, low-cost, effective methodology integrate intelligence robotics, significantly expanding functionalities adaptabilities of current systems industrial, commercial, consumer applications.

Language: Английский

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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

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A Siloxene/Ecoflex Nanocomposite‐Based Triboelectric Nanogenerator with Enhanced Charge Retention by MoS₂/LIG for Self‐Powered Touchless Sensor Applications

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(27)

Published: March 17, 2022

Abstract The contactless triboelectric nanogenerator with the capability of touchless interactions has become extremely fascinating for applications in health care, remote security, and augmented reality. Herein, a Siloxene/Ecoflex nanocomposite‐based high‐performance (TENG) is newly proposed that induces abundant surface charges owing to strong electron affinity property Siloxene/Ecoflex. Furthermore, charge retention one significant challenges TENG. For this, molybdenum disulfide (MoS 2 ) incorporated laser‐induced graphene (LIG) introduced as trapping interlayer, which increases potential by four‐fold, enhances output performance TENG, exhibits excellent supported measurements. In addition, fabricated TENG humidity sensing characteristics sensitivity 0.45 V/% whereas wear tear device prevented non‐contact mechanism Finally, demonstrated self‐powered sensor hand sanitizer well wireless controller transmits triggering signals controlling movement object gaming interface. Considering ongoing coronavirus pandemic, highly promising reducing possible contact situations.

Language: Английский

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Self-powered sensing systems with learning capability

Joule, Journal Year: 2022, Volume and Issue: 6(7), P. 1475 - 1500

Published: June 20, 2022

Language: Английский

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